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Journal articles on the topic 'Orientation compensation'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Bennia, Abdelhak, and Manel Benaissa. "2D-feature descriptor without orientation compensation." International Journal of Computational Vision and Robotics 10, no. 1 (2020): 21. http://dx.doi.org/10.1504/ijcvr.2020.10025966.

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2

Benaissa, Manel, and Abdelhak Bennia. "2D-feature descriptor without orientation compensation." International Journal of Computational Vision and Robotics 10, no. 1 (2020): 21. http://dx.doi.org/10.1504/ijcvr.2020.104354.

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3

Sparks, Scott S., and Doris R. Brodeur. "Orientation and compensation of cooperating teachers." Teacher Educator 23, no. 1 (June 1987): 2–12. http://dx.doi.org/10.1080/08878738709554905.

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4

RAPHAN, THEODORE, TAKAO IMAI, STEVEN T. MOORE, and BERNARD COHEN. "Vestibular Compensation and Orientation during Locomotion." Annals of the New York Academy of Sciences 942, no. 1 (January 25, 2006): 128–38. http://dx.doi.org/10.1111/j.1749-6632.2001.tb03740.x.

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5

Lee, Doo-Am, Dong-Geun Jung, Kwang-Sik Woo, Lark-Kyo Kim, Hyungsoo Mok, and Soohee Han. "Orientation compensation for initially misaligned caster wheels." International Journal of Control, Automation and Systems 11, no. 5 (October 2013): 1071–74. http://dx.doi.org/10.1007/s12555-012-9112-6.

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6

Hong, Lin, Yan Shu Liang, and Meng Cong. "Error Compensation Based on Differential Operators and Electro-Optical Collimation." Applied Mechanics and Materials 44-47 (December 2010): 1568–72. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.1568.

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Theoretical analysis and experiment study on the pose error compensations of parallel mechanisms have been presented. A method for error compensations by means of differential operators and electro-optical collimation system is discussed. Compensation quantities oriented to main error sources from position coordinates of joints on the movable platform can be obtained through mathematic models. Compensation quantities provided by driving legs can be realized precisely by linear calibration techniques. Orientation angles can be measured by means of electro-optical collimation system and a three-dimension turning table, which is centrally positioned and can complete multi-direction inverse adjusting. Numerical example relevant to Stewart platform has been given. Simulation and experiment results indicate the feasibility of the method.

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7

Nath, Pravin. "Taking measure: the link between metrics and marketing’s exploitative and explorative capabilities." European Journal of Marketing 54, no. 7 (May 23, 2020): 1549–80. http://dx.doi.org/10.1108/ejm-01-2018-0050.

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Purpose While metrics are becoming increasingly important for marketing’s relevance, there is also a need to understand how they, as enablers of learning, affect marketing’s adaptive capabilities that ensure its long-term success. Therefore, this study aims to test the association of marketing and financial metrics use and the metric-based orientations of training and compensation, with two key marketing routines – exploitation, i.e. the perfecting of existing activities while allowing for incremental adaptations and exploration or experimentation accompanied by radical adaptation. Design/methodology/approach The study gathers data from 205 managers and uses partial least squares structural equation modeling to test the hypothesized relationships. Findings Marketing metrics encourage both forms of marketing adaptation. Financial metrics use discourages exploration. Market orientation and long-term orientation strengthen (weaken) the positive (negative) relationship between marketing (financial) metrics use and marketing exploration. Metric-based training is more positively associated with both adaptive capabilities than a metric-based compensation orientation, albeit weakly. Research limitations/implications The study’s central proposition – that different metrics or metric orientations are associated with distinct types of knowledge, interpretations, mindsets, motivations and cultural contexts – provides a deeper theoretical understanding of the pathways by which a metric emphasis affects marketing adaptation. Practical implications Marketing managers should emphasize marketing metrics and training more than compensation, to promote marketing exploitation/exploration, while exercising caution in overstressing financial metrics given their negative association with exploration. This latter negative relationship can be weakened (as can the positive one between marketing metrics and exploration be strengthened) with increased market orientation and long-term orientation. Originality/value This study addresses the research gap regarding the relationship between metrics as a configurational element of marketing organization and marketing adaptation.

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Dyballa, Katharina, and Kornelius Kraft. "How Do Labor Representatives Affect Incentive Orientation of Executive Compensation?" CESifo Economic Studies 66, no. 1 (August 13, 2019): 60–90. http://dx.doi.org/10.1093/cesifo/ifz010.

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Abstract Contrary to previous literature we hypothesize that labor’s interest may well—like that of shareholders—aim at securing the long-run survival of the firm. Consequently, employee representatives on the supervisory board could well have an interest in increasing incentive-based compensation to avoid management’s excessive risk taking and short-run oriented decisions. We compile unique panel data on executive compensation over the periods 2006–2011 for 405 listed companies and use a Hausman–Taylor approach to estimate the effect of codetermination on the compensation design. Finally, codetermination has a significantly positive effect on performance-based components of compensation, which supports our hypothesis. (JEL codes: J52, L20, G32, M12, C33)

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9

Chen, You Dong, and Tian Miao Wang. "Cutter Radius Compensation for Five- Axis Peripheral Milling in CNC System." Advanced Materials Research 317-319 (August 2011): 1979–82. http://dx.doi.org/10.4028/www.scientific.net/amr.317-319.1979.

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This paper presents a 3D tool radius compensation for five- axis peripheral milling in CNC systems. Using a generalized kinematics model of five- axis machines and uniform algorithm, it is possible to calculate the complete analytical equations for the tool orientation relative to part. The tool orientation relative to part selecting as Z-axis is used to establish compensation coordinate system. The points in the machine coordinate system are converted to the compensation coordinate system. The compensation points in the compensation coordinate system using these points can be calculated. This computation procedure is similar to the calculation of cutter compensation C. The compensation points in machine coordinate system can be obtained by converting the compensation points in the compensation coordinate system to machine coordinate system. The presented methodology was used in the CNC system, which makes the CNC system more efficiently and systematically

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10

Choi, Hoon-Seok, and Hyun Euh. "Being nice isn’t enough: Prosocial orientation and perceptions of self-uniqueness jointly promote outgroup reparation." Group Processes & Intergroup Relations 22, no. 8 (November 11, 2018): 1215–34. http://dx.doi.org/10.1177/1368430218801078.

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Using a real-life case of intergroup victimization (i.e., victimization of migrant workers in Korea), we tested our hypothesis that positive attitudes toward compensating a victimized outgroup and intention to participate in ingroup corrective actions would be facilitated when a prosocial orientation is combined with high levels of perceived self-uniqueness. In Study 1, we measured participants’ social value orientation and their self-attributed need for uniqueness as our independent variables ( N = 249) and found a predicted interaction effect, such that prosocials with high levels of perceived self-uniqueness were more likely to support outgroup compensation and more willing to engage in ingroup corrective actions than were prosocials with low levels of self-uniqueness. In contrast, for proselfs neither compensation nor intention to participate in ingroup correction varied as a function of self-uniqueness. We replicated these findings in Study 2 ( N = 106), in which we measured participants’ trait agreeableness as an index of prosocial orientation and manipulated self-uniqueness via priming. Implications of our findings for research on outgroup reparation and future directions are discussed.

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11

Zhao, Yong Bin, Jun Yang, Qiu Ye Sun, and Xu Huang. "Improvement of Transient Voltage Stability of the Wind Farm Using SVC." Advanced Materials Research 608-609 (December 2012): 653–57. http://dx.doi.org/10.4028/www.scientific.net/amr.608-609.653.

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Static var compensator (SVC) is used to improve transient voltage stability of the asynchronous wind farm. The issue of voltage stability and transient stability of wind power system are also addressed. A novel control strategy of SVC is proposed instead of the types of traditional feedforward and uniline feedback to control SVC. The proposed method makes control performance better and the compensation efficiency higher. At the same time, balanced compensation strategy of orientation vector conversion is applied instead of traditional model of steady-state phasor to calculate the compensation electrical susceptance. Using this method can overcome the shortcoming of dynamic characteristics and adaptability. At last, the simulation results indicate this control strategy could improve the stability of wind farm effectively and quickly.

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12

Torii, Akihiro, Yuta Mitsuyoshi, Suguru Mototani, and Kae Doki. "Orientation Compensation of an Inchworm Stage with Optical Navigation." International Journal of Automation Technology 12, no. 5 (September 5, 2018): 784–90. http://dx.doi.org/10.20965/ijat.2018.p0784.

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The orientation compensation of a three-degrees-of-freedom inchworm stage with optical navigation is described. As the stage does not use any guide or preload, a closed loop feedback control system is employed to retain the accurate orientation of the stage. The stage consists of piezoelectric actuators (piezos) for thrusting and electromagnets for positioning. A non-excited electromagnet is moved by the deformation of piezos, and excited electromagnets retain their positions. However, a weak electromagnetic force prevents the stage from retaining its accurate position. In addition, a friction force reduces the displacement of the non-excited electromagnet. Therefore, the orientation of the stage is measured using a light source and an optical detector, and the deformation of the piezos is controlled. The orientation error is reduced by using optical navigation.

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13

Xu, Kai, Guo Zhang, Peng Jia, Xiaoyun Hao, and Deren Li. "Bias Compensation Model for Sensor Orientation Under Weak Conditions." IEEE Geoscience and Remote Sensing Letters 18, no. 1 (January 2021): 172–76. http://dx.doi.org/10.1109/lgrs.2020.2968503.

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14

Zhu, Zhuangsheng, Hao Tan, Yue Jia, and Qifei Xu. "Research on the Gravity Disturbance Compensation Terminal for High-Precision Position and Orientation System." Sensors 20, no. 17 (August 31, 2020): 4932. http://dx.doi.org/10.3390/s20174932.

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The Position and Orientation System (POS) is the core device of high-resolution aerial remote sensing systems, which can obtain the real-time object position and collect target attitude information. The goal of exceeding 0.015°/0.003° of its real-time heading/attitude measurement accuracy is unlikely to be achieved without gravity disturbance compensation. In this paper, a high-precision gravity data architecture for gravity disturbance compensation technology is proposed, and a gravity database with accuracy better than 1 mGal is constructed in the test area. Based on the “Block-Time Variation” Markov Model (B-TV-MM), a gravity disturbance compensation device is developed. The gravity disturbance compensation technology is applied to POS products for the first time, and is applied in the field of aerial remote sensing. Flight test results show that the heading accuracy and attitude accuracy of POS products are improved by at least 6% and 16%, respectively. The device can be used for the gravity disturbance compensation of various inertial technology products.

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15

Tung, Chieh, and Pei Lum Tso. "Inverse Kinematics with 3-Dimensational Tool Compensation for 5-Axis Machine Center of Tilting Rotary Table." Applied Mechanics and Materials 110-116 (October 2011): 3525–33. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.3525.

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The purpose of this paper is to develop a tool radius compensation method for a 5-axis horizontal machine center with a tilting rotary table. The generalized expression is presented first to determine the cutting contact location for any type of milling tools. The spindle orientation solved from a closed form of the inverse kinematics is applied for generating the postprocessor, and a compensating procedure is implemented to verify the offset path.

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16

Zhaoxing, Lu, Fang Jiancheng, Gong Xiaolin, Li Jianli, Wang Shicheng, and Wang Yun. "Dynamic Lever Arm Error Compensation of POS Used for Airborne Earth Observation." International Journal of Aerospace Engineering 2018 (2018): 1–13. http://dx.doi.org/10.1155/2018/9464568.

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The position and orientation system (POS) is widely applied in airborne Earth observation, which integrates the strapdown inertial navigation system (SINS) and global positioning system (GPS) to provide high-accuracy position, velocity, and attitude information for remote sensing motion compensation. However, for keeping the appointed direction of remote sensing load, the inertial measurement unit (IMU) and remote sensing load will be driven to sweep by the servo machine. The lever arms among IMU, GPS, and remote sensing load will be time varying, and their influence on the measurement accuracy of POS is serious. To solve the problem, a dynamic lever arm error compensation method is proposed, which contains the first-level lever arm error compensations between IMU and GPS and the second-level lever arm error compensation between POS and remote sensing load. The flight experiment results show that the proposed method can effectively compensate the dynamic lever arm error and achieve high measurement accuracy for POS.

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17

Lin, Shin Chieh, C. T. Chen, and C. H. Chou. "A Comparison of Image Registration Methods Used for Printed Circuit Board Inspection." Key Engineering Materials 381-382 (June 2008): 295–98. http://dx.doi.org/10.4028/www.scientific.net/kem.381-382.295.

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In this study, registration methods used to estimate both position and orientation differences between two images had been evaluated. This is an important issue since that there are always some position and orientation differences when loading test samples on the inspection machine. These differences should be calculated and compensated before further analysis. Registration methods tested including one area method and three feature based method. It was shown that the area method had better performance than other feature based method in these cases studied. And it is shown that it is much easy to detect defect by analyzing the subtracted image with position and orientation compensation instead of those without compensation.

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18

Deng, Lei, and Ya-Nan Yan. "Improving the Yamaguchi4 Decomposition Method Using Selective Polarization Orientation Compensation." Canadian Journal of Remote Sensing 42, no. 2 (March 3, 2016): 125–35. http://dx.doi.org/10.1080/07038992.2016.1160774.

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19

Chui, B. W., L. Aeschimann, T. Akiyama, U. Staufer, N. F. de Rooij, J. Lee, F. Goericke, W. P. King, and P. Vettiger. "Advanced temperature compensation for piezoresistive sensors based on crystallographic orientation." Review of Scientific Instruments 78, no. 4 (2007): 043706. http://dx.doi.org/10.1063/1.2722386.

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20

Hu, Fengpei, Tao Jiang, Huadong Chu, Rongjie Chu, Xizan Jin, and Xiaofen Yu. "Individuals’ economic value orientation or social equity value orientation? A dual value orientation in the process of house demolition compensation." Journal of General Psychology 147, no. 2 (September 18, 2019): 123–39. http://dx.doi.org/10.1080/00221309.2019.1656162.

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21

Lejček, Pavel. "Grain Boundary Migration and Compensation Effect." Materials Science Forum 550 (July 2007): 387–92. http://dx.doi.org/10.4028/www.scientific.net/msf.550.387.

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Anisotropy of grain boundary motion in a Fe–6at.%Si alloy is represented by a spectrum of values of the activation enthalpy of migration and the pre-exponential factor, depending on the orientation of individual grain boundaries. The general plot of these values exhibits a pronounced linear interdependence called the compensation effect. It is shown that changes of these values, caused by changes of intensive variables, are thermodynamically consistent.

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22

Karaffa, Kerry M., Jaimie Page, and Julie M. Koch. "Compensating the Innocent: Perceptions of Exonerees’ Deservingness to Receive Financial Compensation for Wrongful Convictions." Criminal Justice Policy Review 28, no. 7 (September 21, 2015): 710–32. http://dx.doi.org/10.1177/0887403415607049.

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Those who have been wrongfully imprisoned face a variety of challenges upon reentering the community, and monetary compensation may be helpful in rebuilding one’s life following a period of incarceration. However, very little is known about factors that may impact public attitudes regarding compensation policy. Using a sample of 396 university students, we investigated the role of exonerees’ race/ethnicity and prior conviction history, as well as participants’ socially dominant and right-wing authoritarian attitudes in explaining beliefs about financial compensation. Results suggest that males, minority group members, and older participants tended to rate hypothetical exonerees as more deserving of financial compensation. Perceptions of deservingness for compensation did not differ according to the exonerees’ race/ethnicity, but exonerees who had no prior convictions were perceived as more deserving compared with those with prior misdemeanor or felony drug convictions. Participants’ right-wing authoritarianism scores were negatively associated with deservingness scores, whereas social dominance orientation scores were not significantly related to deservingness, after controlling for participant demographics and exoneree factors.

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23

Wang, Xiu Shan, Jian Guo Yang, and Qian Jian Guo. "Synthesis Error Modeling and Thermal Error Compensation of Five-Axis Machining Center." Materials Science Forum 532-533 (December 2006): 49–52. http://dx.doi.org/10.4028/www.scientific.net/msf.532-533.49.

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The synthesis error model of UCP710 five-axis machining center is divided into two parts: the position and orientation error models, and the article gets their models which are used as real-time compensation. One data collector system of thermal displacement and temperature is developed and used as real-time compensation for UCP710. The results of thermal error compensation have proved that the error model is correct and collector system works well.

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24

Hamlet, Sandra L. "Speech Compensation for Prosthodontically Created Palatal Asymmetries." Journal of Speech, Language, and Hearing Research 31, no. 1 (March 1988): 48–53. http://dx.doi.org/10.1044/jshr.3101.48.

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Symmetry of alveolar and palatal contour was altered prosthodontically for five subjects. There was palatographic evidence, for both/s/and/l/, that the prosthodontic changes were not always compensated for in one week of adaptation. Compensation was more pervasive for/s/and took the form of preservation of the general orientation of the air channel in spite of the palatal asymmetries present.

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Yan, Wenxu, Jing Deng, and Dezhi Xu. "Data-driven automatic parking constrained control for four-wheeled mobile vehicles." International Journal of Advanced Robotic Systems 13, no. 6 (November 10, 2016): 172988141666366. http://dx.doi.org/10.1177/1729881416663667.

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In this article, a novel data-driven constrained control scheme is proposed for automatic parking systems. The design of the proposed scheme only depends on the steering angle and the orientation angle of the car, and it does not involve any model information of the car. Therefore, the proposed scheme-based automatic parking system is applicable to different kinds of cars. In order to further reduce the desired trajectory coordinate tracking errors, a coordinates compensation algorithm is also proposed. In the design procedure of the controller, a novel dynamic anti-windup compensator is used to deal with the change magnitude and rate saturations of automatic parking control input. It is theoretically proven that all the signals in the closed-loop system are uniformly ultimately bounded based on Lyapunov stability analysis method. Finally, a simulation comparison among the proposed scheme with coordinates compensation and Proportion Integration Differentiation (PID) control algorithm is given. It is shown that the proposed scheme with coordinates compensation has smaller tracking errors and more rapid responses than PID scheme.

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Willner, Tirza, Yuliya Lipshits-Braziler, and Itamar Gati. "Construction and Initial Validation of the Work Orientation Questionnaire." Journal of Career Assessment 28, no. 1 (February 20, 2019): 109–27. http://dx.doi.org/10.1177/1069072719830293.

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The goal of the present research was to develop a model of work meaning, consisting of five orientations: job (financial compensation), career (advancement and influence), calling (prosocial duty), social embeddedness (belongingness), and busyness (filling idle time with activities). Two versions of the Work Orientation Questionnaire (WOQ), which measures these five orientations, were developed—for young adults and for working adults. Study 1 describes the development of the WOQ and psychometric properties for young adults. Exploratory ( N = 200) and confirmatory ( N = 447) factor analyses supported a five-factor solution, and the five scales, which correspond to the five orientations, had adequate internal consistency reliabilities (median = .81). The divergent validity of the WOQ was supported, as shown by the negligible associations of the five orientations with the 12 scales of the Career Decision-Making Profiles questionnaire. In Study 2, the analyses of the responses of 506 employed adults also supported the five-dimensional structure, and four of the WOQ scales were associated with work satisfaction ( R 2 = .33). Implications for research and practice are discussed along with future research directions.

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Tuzovic, Sven, and Manfred Bruhn. "Integrating customer orientation, employee compensation and performance management: a conceptual framework." International Journal of Business Performance Management 7, no. 3 (2005): 255. http://dx.doi.org/10.1504/ijbpm.2005.006719.

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28

Wang, Xuguang, and Edward Red. "Robotic TCF and rigid-body calibration methods." Robotica 15, no. 6 (November 1997): 633–44. http://dx.doi.org/10.1017/s0263574797000763.

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For off-line programming to work, systematic methods must be developed to account for non-ideal performance of the parts and devices in the manufacturing cell. Although much of the literature focuses on robot inaccuracy, this paper considers practical methods for the tool control frame (TCF) calibration and rigid-body compensation required to close the inverse kinematics loop for target driven tasks.In contrast to contemporary estimation methods, a closed-form, easily automated, solution is introduced for calibrating the position and orientation (pose) of orthogonal end-effectors when the distal robot joint is revolute. This paper also considers methods for measuring and compensating the small rigid-body perturbations that result from non-repeatable part delivery systems or from geometric distortion. These methods are designed to eliminate rθ error from the rigid-body prediction and can be conducted in real-time. Without accurate TCF calibration and rigid-body compensation, even the most accurate robot will fail to complete an off-line programmed task if the task tolerances are stringent.

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Horiguchi, Daisuke, Hiroki Naito, and Ken Sasaki. "Motion Artifact Compensation for Wristwatch Type Photoplethysmography Sensor." Key Engineering Materials 523-524 (November 2012): 639–44. http://dx.doi.org/10.4028/www.scientific.net/kem.523-524.639.

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Heart beat measurement is useful not just for medical use but also for daily healthcare monitoring and for sports. Photoplethysmography is an optical pulse measurement method that measures the variation of light absorption of the blood flow in capillary. Fingertip and earlobe, which are suitable places for this method, are not suitable for wearing sensors in daily life. Measurement at wrist will be more favorable. Technical difficulties of applying photoplethysmography measurement on wrist are: a) blood flow variation and change of sensor orientation caused by body motions, and b) low sensitivity compared to measurement at fingertips or earlobes because of the low capillary density in the tissue. We derived a transfer function that expresses the relationship between body acceleration and change in capillary blood flow based on a simple fluid dynamics model of artery and capillary. Preliminary experiments have shown that motion the artifacts can be reduced by subtracting the change of blood flow estimated from body acceleration. This method is different from conventional frequency filtering methods that do not consider the relationship between the body motion and the changes in the capillary blood flow. Furthermore, sensor head suspension mechanism has been employed in order to stabilize the sensor orientation with respect to the skin as well as the applied force on the skin.

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Wang, Jian Jun. "Compensating Impact of the Roll Variation of Airborne Platform on Laser Point Cloud from Airborne LiDAR." Applied Mechanics and Materials 229-231 (November 2012): 2042–46. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.2042.

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The roll variation of airborne platform has significant impact on the coverage area and point density of the laser point cloud obtained by airborne LiDAR. Thus, it is of practical significance to compensate the impact of roll variation. In this paper, a compensation device was designed firstly, including the mechanical structure and control system, to compensate the impact of roll variation on the laser point cloud. Then, the compensation principle of the airborne LiDAR with the designed compensation device was analyzed. Finally, the actual working procedure of the airborne LiDAR with the designed compensation device was simulated, in which the measurement errors of the position and orientation system (POS), as well as the measurement errors and control errors of the designed compensation device has been considered. The experimental results show that the designed compensation device is effective to compensate the impact of the roll variation.

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Ryu, Meguya, Yoshiaki Nishijima, Shinya Morimoto, Naoki To, Tomoki Hashizume, Ryosuke Matsubara, Atsushi Kubono, et al. "Hyperspectral Molecular Orientation Mapping in Metamaterials." Applied Sciences 11, no. 4 (February 8, 2021): 1544. http://dx.doi.org/10.3390/app11041544.

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The four polarisation method is adopted for measurement of molecular orientation in dielectric nanolayers of metal-insulator-metal (MIM) metamaterials composed of gold nanodisks on polyimide and gold films. Hyperspectral mapping at the chemical finger printing spectral range of 4–20 μμm was carried out for MIM patterns of 1–2.5 μμm period (sub-wavelength). Overlay images taken at 0,π4,π2,3π4 orientation angles and subsequent baseline compensation are shown to be critically important for the interpretation of chemical mapping results and reduction of spurious artefacts. Light field enhancement in the 60-nm-thick polyimide (I in MIM) was responsible for strong absorption at the characteristic polyimide bands. Strong absorbance A at narrow IR bands can be used as a thermal emitter (emittance E=1−R), where R is the reflectance and A=1−R−T, where for optically thick samples the transmittance is T=0.

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32

TOMÉ, PHILLIP, and OKAN YALAK. "Improvement of Orientation Estimation in Pedestrian Navigation by Compensation of Magnetic Disturbances." Navigation 55, no. 3 (September 2008): 179–90. http://dx.doi.org/10.1002/j.2161-4296.2008.tb00428.x.

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33

Benaissa, Manel, and Abdelhak Bennia. "New 2D Feature Descriptor Free from Orientation Compensation with k-Means Clustering." Journal of Advanced Engineering and Computation 2, no. 4 (December 31, 2018): 251. http://dx.doi.org/10.25073/jaec.201824.211.

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In this paper, we propose two novel approaches in the field of feature description and matching. The first approach concerns the feature description and matching part, where we proposed an orientation invariant feature descriptor without an additional step dedicated to this task. We exploited the information provided by two representations of the image (intensity and gradient) for a better understanding and representation of the feature point distribution. The provided information is summarized in two cumulative histograms and used in the feature description and matching process. In the context of object detection, we introduced an unsupervised learning method based on k-means clustering. Which we used as an outlier pre-elimination phase after the matching process to improve our descriptor precision. Experiments shown its robustness to image changes and a clear increase in terms of precision of the tested descriptors after the pre-elimination phase.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.

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Gebhardt, Michael, Markus Ess, Sascha Weikert, Wolfgang Knapp, and Konrad Wegener. "Phenomenological compensation of thermally caused position and orientation errors of rotary axes." Journal of Manufacturing Processes 15, no. 4 (October 2013): 452–59. http://dx.doi.org/10.1016/j.jmapro.2013.05.007.

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35

Wang, Jianrong, Renxiang Wang, and Xin Hu. "COMPENSATION LOW-FREQUENCY ERRORS IN TH-1 SATELLITE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 3, 2016): 383–87. http://dx.doi.org/10.5194/isprsarchives-xli-b1-383-2016.

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The topographic mapping products at 1:50,000 scale can be realized using satellite photogrammetry without ground control points (GCPs), which requires the high accuracy of exterior orientation elements. Usually, the attitudes of exterior orientation elements are obtained from the attitude determination system on the satellite. Based on the theoretical analysis and practice, the attitude determination system exists not only the high-frequency errors, but also the low-frequency errors related to the latitude of satellite orbit and the time. The low-frequency errors would affect the location accuracy without GCPs, especially to the horizontal accuracy. In SPOT5 satellite, the latitudinal model was proposed to correct attitudes using approximately 20 calibration sites data, and the location accuracy was improved. The low-frequency errors are also found in Tian Hui 1 (TH-1) satellite. Then, the method of compensation low-frequency errors is proposed in ground image processing of TH-1, which can detect and compensate the low-frequency errors automatically without using GCPs. This paper deal with the low-frequency errors in TH-1: First, the analysis about low-frequency errors of the attitude determination system is performed. Second, the compensation models are proposed in bundle adjustment. Finally, the verification is tested using data of TH-1. The testing results show: the low-frequency errors of attitude determination system can be compensated during bundle adjustment, which can improve the location accuracy without GCPs and has played an important role in the consistency of global location accuracy.

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Wang, Jianrong, Renxiang Wang, and Xin Hu. "COMPENSATION LOW-FREQUENCY ERRORS IN TH-1 SATELLITE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 3, 2016): 383–87. http://dx.doi.org/10.5194/isprs-archives-xli-b1-383-2016.

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The topographic mapping products at 1:50,000 scale can be realized using satellite photogrammetry without ground control points (GCPs), which requires the high accuracy of exterior orientation elements. Usually, the attitudes of exterior orientation elements are obtained from the attitude determination system on the satellite. Based on the theoretical analysis and practice, the attitude determination system exists not only the high-frequency errors, but also the low-frequency errors related to the latitude of satellite orbit and the time. The low-frequency errors would affect the location accuracy without GCPs, especially to the horizontal accuracy. In SPOT5 satellite, the latitudinal model was proposed to correct attitudes using approximately 20 calibration sites data, and the location accuracy was improved. The low-frequency errors are also found in Tian Hui 1 (TH-1) satellite. Then, the method of compensation low-frequency errors is proposed in ground image processing of TH-1, which can detect and compensate the low-frequency errors automatically without using GCPs. This paper deal with the low-frequency errors in TH-1: First, the analysis about low-frequency errors of the attitude determination system is performed. Second, the compensation models are proposed in bundle adjustment. Finally, the verification is tested using data of TH-1. The testing results show: the low-frequency errors of attitude determination system can be compensated during bundle adjustment, which can improve the location accuracy without GCPs and has played an important role in the consistency of global location accuracy.

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Wang, Li, Wen Xin Huang, Fei Fei Bu, and Ying Hu. "Grid-Connected Inverter with Harmonic Compensation for Distributed Power System." Applied Mechanics and Materials 313-314 (March 2013): 804–8. http://dx.doi.org/10.4028/www.scientific.net/amm.313-314.804.

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To solve the problem of harmonic pollution in distributed power system, a new type of grid-connected inverter with harmonic compensation is studied in this paper. This system adopts a unified control strategy with decoupled active and reactive power based on grid voltage orientation. Both the grid connection and harmonic compensation are realized together in one inverter, which improves the inverter’s utilization efficiency and protects the power grid from harmonic pollution. The simulation and experimental results are shown to prove the correctness of the control strategy.

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Luo, Le, Hongjun Wu, and Chuyue Zhang. "CEO Compensation, Incentive Alignment, and Carbon Transparency." Journal of International Accounting Research 20, no. 2 (June 1, 2021): 111–32. http://dx.doi.org/10.2308/jiar-2020-032.

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ABSTRACT We examine whether chief executive officer compensation aligned with stakeholders' interests is associated with enhanced corporate carbon transparency. Using an international sample obtained from the CDP, we find that corporate carbon transparency—as measured by both the propensity to voluntarily disclose carbon information and the quality and comprehensiveness of the disclosure—is greater when managers' compensation contracts are better aligned with stakeholder interests. Further analyses indicate that this positive relationship is stronger in countries or regions with a code law legal system, with an inefficient rule of law, that show strong social norms toward climate change, that feature collectivist societies, and that have a long-term orientation. These findings indicate that the stakeholder agency problem of voluntary carbon disclosure can be addressed through executive incentives that are aligned with stakeholders' interests.

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Zhang, Yi, Jianguo Yang, Sitong Xiang, and Huixiao Xiao. "Volumetric error modeling and compensation considering thermal effect on five-axis machine tools." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 227, no. 5 (August 3, 2012): 1102–15. http://dx.doi.org/10.1177/0954406212456475.

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This article intends to provide an error compensation system for five-axis machine tools. A volumetric error model is established with homogeneous transformation matrix method, from which compensation values of both orientation and position errors can be obtained. Thirty-seven errors on a five-axis machine tool are classified into three categories – functional, random, and negligible errors, among which the effect of the first one on volumetric accuracy is considered as great enough to be included in this model. Some typical modeling methods are discussed on positioning and straightness errors, considering both geometric and thermal effects. Then, we propose a compensation implementation technique based on the function of external machine zero point shift and Ethernet data communication protocol for machine tools. Finally, laser diagonal measurements have been conducted to validate the effectiveness of the proposed volumetric error compensation system.

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Michałek, Maciej, Piotr Dutkiewicz, Marcin Kiełczewski, and Dariusz Pazderski. "Trajectory tracking for a mobile robot with skid-slip compensation in the vector-field-orientation control system." International Journal of Applied Mathematics and Computer Science 19, no. 4 (December 1, 2009): 547–59. http://dx.doi.org/10.2478/v10006-009-0043-1.

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Trajectory tracking for a mobile robot with skid-slip compensation in the vector-field-orientation control systemThe article is devoted to a motion control problem for a differentially driven mobile robot in the task of trajectory tracking in the presence of skid-slip effects. The kinematic control concept presented in the paper is the Vector Field Orientation (VFO) feedback approach with a nonlinear feed-forward skid-slip influence compensation scheme. The VFO control law guarantees asymptotic convergence of the position tracking error to zero in spite of the disturbing influence of skid-slip phenomena. The paper includes a control law design description, stability and convergence analysis of a closed-loop system, and practical verification of the proposed control concept. The experimental results illustrate control quality obtained on a laboratory setup equipped with vision feedback, where the Kalman filter algorithm was used in order to practically estimate skid-slip components.

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Ugolini, Alberto, Bruno Tiribilli, and Vieri Boddi. "The sun compass of the sandhopperTalitrus saltator: the speed of the chronometric mechanism depends on the hours of light." Journal of Experimental Biology 205, no. 20 (October 15, 2002): 3225–30. http://dx.doi.org/10.1242/jeb.205.20.3225.

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SUMMARYExperiments on solar orientation were conducted with adult amphipods(Talitrus saltator) subjected to a reduction and/or phase shift of the hours of light (L) or dark (D) with respect to the natural photoperiod: 15 h:9 h L:D (controls), 15 h:9 h inverted (i.e. phase-shifted by 12 h and tested with the sun during the subjective night), 4 h:20 h, 20 h:4 h inverted. The sandhoppers were released in a confined environment, and individual orientation angles were recorded. The results confirm the continuous operation, through the entire 24-h period, of a chronometric mechanism of compensation for apparent solar motion. They show excellent agreement with a recently proposed model of compensation for the sun at constant (not differential) speed and they demonstrate a dependence of the speed of the chronometric mechanism on the L:D ratio in the 24-h period.

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Thosuwanchot, Nongnapat, and Soon Lee Eugene Kang. "Retiring CEOs and Temporal Orientation: The Roles of CEO Compensation and Equity Ownership." Academy of Management Proceedings 2018, no. 1 (August 2018): 10120. http://dx.doi.org/10.5465/ambpp.2018.10120abstract.

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Seta, Catherine E., John J. Seta, and R. Casey Goodman. "Social Identity Orientation and the Generation of Compensatory Expectations: Schema Maintenance Through Compensation." Basic and Applied Social Psychology 20, no. 4 (December 1998): 285–91. http://dx.doi.org/10.1207/s15324834basp2004_5.

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Yuan, Xiuxiao. "A novel method of systematic error compensation for a position and orientation system." Progress in Natural Science 18, no. 8 (August 2008): 953–63. http://dx.doi.org/10.1016/j.pnsc.2008.02.005.

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Kim, Dong-Wook, Kwang-Hoon Lee, Seon Kyu Yoon, Yong-Moo Kwon, Eun-Young Chang, and Sung-Kyu Kim. "Analysis and compensation of distorted stereoscopic images due to the observer's viewing orientation." Optics Communications 285, no. 19 (September 2012): 3909–16. http://dx.doi.org/10.1016/j.optcom.2012.05.035.

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Wu, Xinyu, Jia Liu, Chenyang Huang, Meng Su, and Tiantian Xu. "3-D Path Following of Helical Microswimmers With an Adaptive Orientation Compensation Model." IEEE Transactions on Automation Science and Engineering 17, no. 2 (April 2020): 823–32. http://dx.doi.org/10.1109/tase.2019.2947071.

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Lee, Jong-Sen, and Thomas L. Ainsworth. "The Effect of Orientation Angle Compensation on Coherency Matrix and Polarimetric Target Decompositions." IEEE Transactions on Geoscience and Remote Sensing 49, no. 1 (January 2011): 53–64. http://dx.doi.org/10.1109/tgrs.2010.2048333.

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Li, You, Zhe He, Yuqi Li, Zhouzheng Gao, Ruizhi Chen, and Naser El-Sheimy. "Enhanced Wireless Localization Based on Orientation-Compensation Model and Differential Received Signal Strength." IEEE Sensors Journal 19, no. 11 (June 1, 2019): 4201–10. http://dx.doi.org/10.1109/jsen.2019.2899895.

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Auyang, Arick G., Jasper T. Yen, and Young-Hui Chang. "Neuromechanical stabilization of leg length and orientation through interjoint compensation during human hopping." Experimental Brain Research 192, no. 2 (October 7, 2008): 253–64. http://dx.doi.org/10.1007/s00221-008-1582-7.

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Tu, Xin Ru, Miao Zhong Xu, Wei Shen, and Wei Dong Zhu. "ADS40 Test Field Calibration Using Posteriori Compensation Method." Applied Mechanics and Materials 241-244 (December 2012): 336–41. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.336.

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ADS40 is the first commercial three line scanner(TLS) Airborne Digital Sensor developed by LH Systems jointly with DLR and launched in 2000.The unique hardware design and dataset processing workflow of ADS40 bring challenges to traditional calibration theory and methods. Considering the imagery acquirement and interior orientation methods of ADS40, the ADS40 test field calibration using posteriori compensation method is proposed: An analysis is made to the systematic error of ADS40’s cam file. A set of first order bivariate polynomial functions is developed to fit the systematic error, and the solution method is deduced. With the practical ADS40 dataset, a set of experiments is done, and the experimental results demonstrate the effectiveness and feasibility of proposed method.

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