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Journal articles on the topic 'Fusion distances'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Wang, Xiu Fang, Xue Ming Li, Qi Yang, and De Xin Qin. "Pipeline Network Leakage Diagnosis Based on Distance Data Fusion." Applied Mechanics and Materials 303-306 (February 2013): 918–21. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.918.

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The novel scheme of data fusion is a kind of evidence theories based on distance. We calculate the weight coefficients according to the structure of network and distances matrix between points and sensors. The greater the distance is, the smaller the coefficient will be. Experimental results show that, the proposed algorithm works well with high conflicts and fits characteristics of network.

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Reiner, C. S., T. F. Hany, J. Fornaro, et al. "18F-FDG-PET and MRI in patients with malignancies of the liver and pancreas." Nuklearmedizin 49, no. 03 (2010): 106–14. http://dx.doi.org/10.3413/nukmed-0263.

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Summary Purpose: To evaluate the accuracy of retrospective rigid image registration and fusion between F-18 fluorodeoxyglucose positron emission tomography (FDG-PET) and magnetic resonance imaging (MRI) of the upper abdomen. Patients, material, methods: Image fusion of PET and MRI was performed in 30 patients with suspected malignancy of the liver or pancreas. Using a commercially available image fusion tool capable of rigid manual point-based registration, PET-Images were retrospectively registered and fused by matching eight homologous points in the 3D spoiled gradient echo (GRE) MRI sequenc

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Wang, Tao, Xiaoran Wang, and Mingyu Hong. "Gas Leak Location Detection Based on Data Fusion with Time Difference of Arrival and Energy Decay Using an Ultrasonic Sensor Array." Sensors 18, no. 9 (2018): 2985. http://dx.doi.org/10.3390/s18092985.

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Ultrasonic gas leak location technology is based on the detection of ultrasonic waves generated by the ejection of pressured gas from leak holes in sealed containers or pipes. To obtain more accurate leak location information and determine the locations of leak holes in three-dimensional space, this paper proposes an ultrasonic leak location approach based on multi-algorithm data fusion. With the help of a planar ultrasonic sensor array, the eigenvectors of two individual algorithms, i.e., the arrival distance difference, as determined from the time difference of arrival (TDOA) location algori

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Kumar, G. Ajay, Jin Hee Lee, Jongrak Hwang, Jaehyeong Park, Sung Hoon Youn, and Soon Kwon. "LiDAR and Camera Fusion Approach for Object Distance Estimation in Self-Driving Vehicles." Symmetry 12, no. 2 (2020): 324. http://dx.doi.org/10.3390/sym12020324.

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The fusion of light detection and ranging (LiDAR) and camera data in real-time is known to be a crucial process in many applications, such as in autonomous driving, industrial automation, and robotics. Especially in the case of autonomous vehicles, the efficient fusion of data from these two types of sensors is important to enabling the depth of objects as well as the detection of objects at short and long distances. As both the sensors are capable of capturing the different attributes of the environment simultaneously, the integration of those attributes with an efficient fusion approach grea

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Ji, Linna, Fengbao Yang, and Xiaoming Guo. "Image Fusion Algorithm Selection Based on Fusion Validity Distribution Combination of Difference Features." Electronics 10, no. 15 (2021): 1752. http://dx.doi.org/10.3390/electronics10151752.

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Aiming at addressing the problem whereby existing image fusion models cannot reflect the demand of diverse attributes (e.g., type or amplitude) of difference features on algorithms, leading to poor or invalid fusion effect, this paper puts forward the construction and combination of difference features fusion validity distribution based on intuition-possible sets to deal with the selection of algorithms with better fusion effect in dual mode infrared images. Firstly, the distances of the amplitudes of difference features between fused images and source images are calculated. The distances can

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Predebon, John. "Convergence Responses to Monocularly Viewed Objects: Implications for Distance Perception." Perception 23, no. 3 (1994): 303–19. http://dx.doi.org/10.1068/p230303.

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In four experiments the role of dark vergence and the implied distance from the familiar-size and suggested-size cues to distance on the convergence response was investigated. A nonius-alignment technique was used to measure the convergence response in total darkness (dark vergence) and the fusion-free convergence response to monocularly viewed objects presented at a distance of 75 cm under otherwise reduced stimulus conditions. Observers also estimated the size and distance of the objects. The results indicated a significant association between individuals' dark-vergence distances and the con

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Grothe, Tobias, Julia Nowak, Reinhard Jahn, and Peter Jomo Walla. "Selected tools to visualize membrane interactions." European Biophysics Journal 50, no. 2 (2021): 211–22. http://dx.doi.org/10.1007/s00249-021-01516-6.

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AbstractIn the past decade, we developed various fluorescence-based methods for monitoring membrane fusion, membrane docking, distances between membranes, and membrane curvature. These tools were mainly developed using liposomes as model systems, which allows for the dissection of specific interactions mediated by, for example, fusion proteins. Here, we provide an overview of these methods, including two-photon fluorescence cross-correlation spectroscopy and intramembrane Förster energy transfer, with asymmetric labelling of inner and outer membrane leaflets and the calibrated use of transmemb

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Grove, Philip M., Alistair P. Mapp, and Hiroshi Ono. "The Bifixation Field as a Function of Viewing Distance." Journal of Ophthalmology 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/274803.

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Hering reported that the area over which he could bifixate a target was smaller at near convergence distances than far convergence distances and predicted that in extreme horizontal gaze positions, the temporally directed eye lags behind the nasally directed eye. We tested these predictions using a subjective index of eye position. Experiment 1 confirmed that the bifixation field was significantly smaller at near convergence distances. When bifixation broke down at the near distance, the nasally directed eye lagged behind the temporally directed eye for all observers. At the far distance, the

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Shen, J., W. L. Han, J. Ge, L. B. Zhang, and H. Tan. "DIGITAL ELEVATION MODEL INTERPOLATION BY FUSION OF MORPHOLOGICAL RECONSTRUCTION AND DISTANCE TRANSFORMATION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W7 (September 13, 2017): 881–85. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w7-881-2017.

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Interpolation methods have significant impacts on the accuracy of the digital elevation model (DEM) from contours which are one of frequently employed data sources. In this paper, an interpolation method is presented to build DEM from contour lines by fusion/integration of morphological reconstruction and distance transformation with obstacles. Particularly, morphological reconstruction is used to get the elevation values of the higher contour lines and the lower contour lines of any a spatial point between two contour lines, and distance transformation with obstacles is used to get the geodes

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Kumar, N. B. Mahesh, and K. Premalatha. "Palmprint Authentication System Based on Local and Global Feature Fusion Using DOST." Journal of Applied Mathematics 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/918376.

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Palmprint is the region between wrist and fingers. In this paper, a palmprint personal identification system is proposed based on the local and global information fusion. The local and global information is critical for the image observation based on the results of the relationship between physical stimuli and perceptions. The local features of the enhanced palmprint are extracted using discrete orthonormal Stockwell transform. The global feature is obtained by reducing the scale of discrete orthonormal Stockwell transform to infinity. The local and global matching distances of the two palmpri

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Moon, Myung-Sang, Dong-Hyeon Kim, Min-Geun Yoon, Sung-Soo Kim, and Jang-Cheol Sihn. "RADIOLOGICAL ASSESSMENT OF BONY UNION AFTER OCCIPITOCERVICAL FUSION." Journal of Musculoskeletal Research 19, no. 02 (2016): 1650009. http://dx.doi.org/10.1142/s0218957716500093.

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Study design: Assessment of posterior occipitocervical fusions, based on the post-operative (postop) follow-up radiographic findings. Objectives: To investigate an objective radiological evaluation method of the occipitocervical stabilization and fusion. Summary of Background data: For evaluation of the union of the non-instrumented or instrumented stabilization and bony fusion of the occipitocervical segments, only a few studies have been performed by some previous authors. Material and Methods: Occipitocervical fusions were performed in 20 patients from 1995 to 2007. The patients underwent o

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Tian, Jing, Yanting Ai, Chengwei Fei, Ming Zhao, Fengling Zhang, and Zhi Wang. "Fault Diagnosis of Intershaft Bearings Using Fusion Information Exergy Distance Method." Shock and Vibration 2018 (August 29, 2018): 1–8. http://dx.doi.org/10.1155/2018/7546128.

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For the fault diagnosis of intershaft bearings, the fusion information exergy distance method (FIEDM) is proposed by fusing four information exergies, such as singular spectrum exergy, power spectrum exergy, wavelet energy spectrum exergy, and wavelet space spectrum exergy, which are extracted from acoustic emission (AE) signals under multiple rotational speeds and multimeasuring points. The theory of FIEDM is investigated based on four information exergy distances under multirotational speeds. As for rolling bearings, four faults and one normal condition are simulated on a birotor test rig to

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Miller, R. J. "The effect of ingested alcohol on fusion latency at various viewing distances." Perception & Psychophysics 50, no. 6 (1991): 575–83. http://dx.doi.org/10.3758/bf03207543.

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Song, Xiang, Xu Li, Wencheng Tang, and Weigong Zhang. "RFID/ In-vehicle Sensors-Integrated Vehicle Positioning Strategy Utilising LSSVM and Federated UKF in a Tunnel." Journal of Navigation 69, no. 4 (2015): 845–68. http://dx.doi.org/10.1017/s0373463315000946.

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This paper proposes a Radio Frequency Identification (RFID)/ in-vehicle sensors fusion strategy for vehicle positioning in completely Global Positioning System (GPS)-denied environments such as tunnels. The strategy employs a two-step approach, namely, the calculation of the distances between the RFID tags and the reader, and then the global fusion estimation of vehicle position. First, a Least Square Support Vector Machine (LSSVM) algorithm is developed to obtain distance. Next a novel Federated Unscented Kalman Filter (FUKF) is designed to realise the global fusion. The decentralised federat

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Liu, Bao Jun. "Study on Multisensor Data Fusion of Ultrasonic Sensor." Advanced Materials Research 722 (July 2013): 44–48. http://dx.doi.org/10.4028/www.scientific.net/amr.722.44.

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Aiming at data fusion of Autonomous car multisensors experiment at many times on distances, a novel fusion method is proposed based on the approach degree and weights. The method calculate mean and variance based on the measured sensors data, Using the maximum and minimum approach degree of this fuzzy set , the approach degree of the measured data from various sensors is processed quantitatively ,eliminating outlier data by Grubbs method, assigned the weights of data measured in the fusion process reasonably , so that the final expression of the data fusion is obtained, thus the data fusion of

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Watchman, Christopher J., Russell J. Hamilton, Baldassarre Stea, and Alan J. Mignault. "PATIENT POSITIONING USING IMPLANTED GOLD MARKERS WITH THE NOVALIS BODY SYSTEM IN THE THORACIC SPINE." Neurosurgery 62, suppl_5 (2008): A62—A68. http://dx.doi.org/10.1227/01.neu.0000325938.08605.eb.

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ABSTRACT OBJECTIVE To evaluate the effectiveness of implanted gold marker registration compared with bony fusion alignment for patient positioning using the Novalis Body system. METHODS Eighteen treatment fractions of stereotactic spinal radiotherapy were analyzed for three patients who each had three implanted gold seeds placed near their spinal lesions before radiotherapy. At each treatment session, the registration was first performed using bony fusion and then verified by another bony fusion, followed by registration with implanted markers. The software reported the calculated shifts for b

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Jaschinski, W. "Fixation Disparity as a Function of Viewing Distance and Prism Load." Perception 25, no. 1_suppl (1996): 76. http://dx.doi.org/10.1068/v96p0211.

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In binocular vision, fixation disparity is present when a fixation point falls within Panum's area, but not on corresponding retinal points. To investigate the effect of vergence load, fixation disparity was measured at viewing distances of 20, 30, 40, 60, and 100 cm (while the test subtended a constant angular size) by the psychophysical method of dichoptically presented nonius lines with a central fusion stimulus. As the viewing distance was shortened from 100 to 20 cm, mean fixation disparity changed monotonically from 1 min arc esophoria (ie the eyes converged in front of the target) to 3

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Kim, Bum Joon, and Byeong Soo Lim. "Microstructure and Fatigue Crack Growth Behavior of Heat Affected Zone in P92 Steel Weldment." Key Engineering Materials 261-263 (April 2004): 1185–90. http://dx.doi.org/10.4028/www.scientific.net/kem.261-263.1185.

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Fatigue strength and life of weldment at high temperature is very important for high temperature materials used in power plants. In this study, fatigue crack growth tests were performed at high temperature to examine the effect of microstructure on the crack growth resistance in P92 steel weldment. Microhardness of the weldment was also investigated for better analysis. CT specimens were made from a welded plate with notches at different distances from the fusion line. High fatigue crack growth rates were found along the fusion line and fusion line+2mm line into the heat affected zone.

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Pollarolo, Giovanni. "Fusion Reactions as a Probe of the Nucleus-Nucleus Potential at Short Distances." Progress of Theoretical Physics Supplement 154 (2004): 201–8. http://dx.doi.org/10.1143/ptps.154.201.

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Li, Caihong, Yong Song, Fengying Wang, Zhenying Liang, and Baoyan Zhu. "Chaotic Path Planner of Autonomous Mobile Robots Based on the Standard Map for Surveillance Missions." Mathematical Problems in Engineering 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/263964.

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This paper proposes a fusion iterations strategy based on the Standard map to generate a chaotic path planner of the mobile robot for surveillance missions. The distances of the chaotic trajectories between the adjacent iteration points which are produced by the Standard map are too large for the robot to track. So a fusion iterations strategy combined with the large region iterations and the small grids region iterations is designed to resolve the problem. The small region iterations perform the iterations of the Standard map in the divided small grids, respectively. It can reduce the adjacen

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Manchanda, Meenu, and Deepak Gambhir. "Improvement in CNN-Based Multifocus Image Fusion Algorithm with Triangulated Fuzzy Filter." International Journal of Image and Graphics 21, no. 02 (2021): 2150020. http://dx.doi.org/10.1142/s0219467821500200.

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Multifocus image fusion is a demanding research field due to the utilization of modern imaging devices. Generally, the scene to be captured contains objects at different distances from these devices and so a set of multifocus images of the scene is captured with different objects in-focus. However, to improve the situational awareness of the captured scene, these sets of images are required to be fused together. Therefore, a multifocus image fusion algorithm based on Convolutional Neural Network (CNN) and triangulated fuzzy filter is proposed. A CNN is used to extract information regarding foc

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Feng, B., X. M. Fan, Z. W. Lu, D. Y. Lin, F. Yang, and Y. L. Wang. "Suppression of stimulated rotational Raman scattering over long air paths via controlling the polarization state." Laser and Particle Beams 33, no. 2 (2015): 169–73. http://dx.doi.org/10.1017/s0263034615000245.

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AbstractStimulated rotational Raman scattering (SRRS) limits the effective transmission distances of the high-energy and high-power laser pulses in laser–fusion systems and other applications. A simple and practical method of suppressing SRRS process by controlling the polarization direction of Stokes light is proposed. For a narrowband, linearly polarized, flat-topped laser pulse of 351 nm with intensity of 2 GW/cm2 and width of 3 ns, the SRRS threshold distance in air is lengthened to 30.0 m from 16.2 m easily using the method. Simulation results demonstrate that the method is also applicabl

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Zhou, Hao, Ji Hua Gu, and Da Qing Chen. "Multi-Plane 3-D Holographic Image Fusion in DCT Domain." Advanced Materials Research 760-762 (September 2013): 572–76. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.572.

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An improved multi-plane imaging fusion algorithm for 3-D digital holography is presented. Multiple reconstructed images at different distances from single off-axis Fresnel digital hologram are fused using discrete cosine transform (DCT) with different blocks. The zero order term is removed using a Laplacian operator while the conjugate image and dispersed images of defocused objects are eliminated by selecting a simple rectangular window before image fusion. Compared with those fused images obtained directly from the reconstructed images, the fused images qualities are greatly improved and all

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Tseng, Chi-Ling, and Gwo-Chyuan Shaw. "Genetic Evidence for the Actin Homolog Gene mreBH and the Bacitracin Resistance Gene bcrC as Targets of the Alternative Sigma Factor SigI of Bacillus subtilis." Journal of Bacteriology 190, no. 5 (2007): 1561–67. http://dx.doi.org/10.1128/jb.01497-07.

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ABSTRACT The Bacillus subtilis sigI gene, which is a member of the class VI heat shock genes of the B. subtilis heat shock stimulon, encodes an alternative sigma factor whose regulon is poorly defined. In this study, by using a binary vector system, we showed that B. subtilis SigI could drive expression of a transcriptional fusion between the sigI regulatory region from Bacillus licheniformis, Bacillus sp. strain NRRL B-14911, B. subtilis, or Bacillus thuringiensis and the xylE reporter gene in B. subtilis. The transcriptional initiation sites of these fusions in B. subtilis were mapped by pri

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Su, Naiquang, Xiao Li, Qinghua Zhang, Zhiqiang Huo, and Xavier Chiementin. "Composite Fault Diagnosis for Rotating Machinery of Large Units Based on Evidence Theory and Multi-Information Fusion." Shock and Vibration 2019 (February 26, 2019): 1–12. http://dx.doi.org/10.1155/2019/1982317.

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Due to the complexity of the structure and process of large-scale petrochemical equipment, different fault characteristics are mixed and present multiple couplings and ambiguities, leading to the difficulty in identifying composite faults in rotating machinery. This paper proposes a composite faults diagnosis method for rotating machinery of the large unit based on evidence theory and multi-information fusion. The evidence theory and multi-information fusion method mainly deal with multisource information and conflict information, synthesize multiple uncertain information, and obtain synthetic

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Ye, Xuhui, Dong Wang, Daode Zhang, and Xinyu Hu. "Transmission Line Obstacle Detection Based on Structural Constraint and Feature Fusion." Symmetry 12, no. 3 (2020): 452. http://dx.doi.org/10.3390/sym12030452.

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Accurate detection and identification of obstacles plays an important role in the navigation and behavior planning of the patrol robot. Aiming at the patrol robot with camera mounted symmetrically, an obstacle detection method based on structural constraint and feature fusion is proposed. Firstly, in order to discover the region of interest, the bounding box algorithm is used to propose the region. The location of the detected ground wire is used to constrain the region, and the image block of interest is clipped. Secondly, in order to accurately represent the multi-view and multi-scale obstac

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Bender, Christopher O., and René T. Boeré. "(5Z,7Z,9Z)-5,10-Dibromobenzo[8]annulene." Acta Crystallographica Section E Structure Reports Online 69, no. 11 (2013): o1641. http://dx.doi.org/10.1107/s1600536813027797.

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In the structure of the title compound, C12H8Br2, the two bromine substituents are orientedexoto the boat-shaped cyclooctatetraene at the two ring sites that are β to the ring fusion positions. The average Br—C bond distance is 1.919 (2) Å, the average distance for C=C double bonds that are Br substituted is 1.328 (2) Å, while the other two double-bond distances are 1.327 (2) and 1.398 (2) Å for the non-fused and fused bonds, respectively. Each type of ring interatomic distance is within s.u. of the average values for the four known structures, including the title compound, of benzo-fused cycl

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Yao, Shouguang, Tao Huang, Kai Zhao, Jianbang Zeng, and Shuhua Wang. "Simulation of flow boiling of nanofluid in tube based on lattice Boltzmann model." Thermal Science 23, no. 1 (2019): 159–68. http://dx.doi.org/10.2298/tsci160817006y.

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In this study, a lattice Boltzmann model of bubble flow boiling in a tube is established. The bubble growth, integration, and departure of 3% Al2O3-water nanofluid in the process of flow boiling are selected to simulate. The effects of different bubble distances and lateral accelerations a on the bubble growth process and the effect of heat transfer are investigated. Results showed that with an increase in the bubble distance, the bubble coalescence and the effect of heat transfer become gradual. With an increase in lateral acceleration a, the bubble growth is different. When a = 0.5e?7 and a

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Turner, Daniel J., and Matthew E. Hurles. "High-throughput haplotype determination over long distances by haplotype fusion PCR and ligation haplotyping." Nature Protocols 4, no. 12 (2009): 1771–83. http://dx.doi.org/10.1038/nprot.2009.184.

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Ulyat, Katie, Alison Y. Firth, and Helen J. Griffiths. "Quantifying the vertical fusion range at four distances of fixation in a normal population." British and Irish Orthoptic Journal 1 (January 1, 2004): 43. http://dx.doi.org/10.22599/bioj.244.

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Zare Chahooki, Mohammad Ali, and Hamid Kargar Shooroki. "Using manifold structure for automatic image annotation by fusion of multiple feature spaces." Journal of Communications Technology, Electronics and Computer Science 2 (November 21, 2015): 1. http://dx.doi.org/10.22385/jctecs.v2i0.5.

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Automatic image annotation has been an active research topic in recent years. Low level features like as color, texture, shape as well as object spatial relations are extracted to represent images in general. These syntaxes are further used to retrieve images from large image data sets. However, the similarity of images could not be found correctly by similarity measures such as Euclidean distance in many situations. On the other hand, graph models have been shown powerful in solving many machine learning problems in recent years. In this paper, we propose a graph-based learning approach, name

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Leme Godoy-Santos, Alexandre, Sierra Phillips, Lauren Roberts, Sameer Naranje, Ashish Shah, and Cesar De Cesar Netto. "TL 18104 - Ankle fusion percutaneous home run screw fixation." Scientific Journal of the Foot & Ankle 13, Supl 1 (2019): 83S. http://dx.doi.org/10.30795/scijfootankle.2019.v13.1062.

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Introduction: During internal fixation of ankle fusions, in addition to the standard crossed screw fixation pattern, the use of a percutaneously placed augmenting screw, directed from the posterolateral tibial metaphysis proximally across the ankle into the talar neck (“home run screw”), is a widely used technique. The placement of this screw is technically demanding, and for the majority of surgeons, multiple attempts under fluoroscopy guidance are frequently needed to achieve perfect positioning of the implant. There is a risk of injury to local neurovascular and tendinous structures. Object

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Mohamed Mostafa, Medhat Abdel Rahman, Miljan Vucetic, Nikola Stojkovic, Nikola Lekić, and Aleksej Makarov. "Fuzzy Functional Dependencies as a Method of Choice for Fusion of AIS and OTHR Data." Sensors 19, no. 23 (2019): 5166. http://dx.doi.org/10.3390/s19235166.

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Maritime situational awareness at over-the-horizon (OTH) distances in exclusive economic zones can be achieved by deploying networks of high-frequency OTH radars (HF-OTHR) in coastal countries along with exploiting automatic identification system (AIS) data. In some regions the reception of AIS messages can be unreliable and with high latency. This leads to difficulties in properly associating AIS data to OTHR tracks. Long history records about the previous whereabouts of vessels based on both OTHR tracks and AIS data can be maintained in order to increase the chances of fusion. If the quantit

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de Cesar Netto, Cesar, Lauren Roberts, Jackson Staggers, et al. "Ankle Fusion Percutaneous Home Run Screw Fixation." Foot & Ankle Orthopaedics 3, no. 3 (2018): 2473011418S0020. http://dx.doi.org/10.1177/2473011418s00207.

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Category: Ankle Arthritis Introduction/Purpose: During internal fixation of ankle fusions, besides the standard crossed screw fixation pattern, the use of a percutaneously placed augmenting screw, directed from the posterolateral tibial metaphysis proximally across the ankle into the talar neck (“ankle fusion home run screw”), is a widely used technique. The placement of this screw is technically demanding and multiple attempts under fluoroscopy guidance are frequently needed to achieve a perfect positioning of the implant. Injuries to local neurovascular and tendinous structures might happen.

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Prelas, M. A., and E. J. Charlson. "Synergism in inertial confinement fusion: a total direct energy conversion package." Laser and Particle Beams 7, no. 3 (1989): 449–66. http://dx.doi.org/10.1017/s0263034600007412.

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The products of fusion reactions have unique properties which can be used for direct energy conversion. These products are neutrons and ions. Neutrons can be transported very long distances through solid materials and can interact with certain elements which have a very high absorption cross section. Ions on the other hand have a very short transport length even in a gaseous medium. It is possible to utilize these products in an inertial confinement fusion reactor with two different direct energy conversion devices: a nuclear-pumped laser using neutrons from the fusion reaction; a photon gener

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Römer, W., T. Hothorn, A. Pfahlberg, et al. "Anatomical accuracy of lesion localization." Nuklearmedizin 44, no. 04 (2005): 149–55. http://dx.doi.org/10.1055/s-0038-1625102.

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SummaryThe aim of this study was to evaluate the anatomical accuracy and reproducibility of retrospective interactive rigid image registration (RIR) between routinely archived X-ray computer tomography (CT) and positron emission tomography performed with 18F-deoxyglucose (FDG-PET) in oncological patients. Methods: Two observers registered PET and CT data obtained in 37 patients using a commercially available image fusion tool. RIR was performed separately for the thorax and the abdomen using physiological FDG uptake in several organs as a reference. One observer performed the procedure twice (

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LIPOVETSKY, STAN. "DATA FUSION IN SEVERAL ALGORITHMS." Advances in Adaptive Data Analysis 05, no. 03 (2013): 1350014. http://dx.doi.org/10.1142/s1793536913500143.

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Data fusion consists of the process of integrating several datasets with some common variables, and other variables available only in partial datasets. The main problem of data fusion can be described as follows. From one source, having X0 and Y0 datasets (with N0 observations by multiple x and y variables, n and m of those, respectively), and from another source, having X1 data (with N1 observations by the same nx-variables), we need to estimate the missing portion of the Y1 data (of size N1 by m variables) in order to combine all the data into one set. Several algorithms are considered in th

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Hess, Bernhard J. M., and H. Misslisch. "Three-dimensional ocular kinematics underlying binocular single vision." Journal of Neurophysiology 116, no. 6 (2016): 2841–56. http://dx.doi.org/10.1152/jn.00596.2016.

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We have analyzed the binocular coordination of the eyes during far-to-near refixation saccades based on the evaluation of distance ratios and angular directions of the projected target images relative to the eyes' rotation centers. By defining the geometric point of binocular single vision, called Helmholtz point, we found that disparities during fixations of targets at near distances were limited in the subject's three-dimensional visual field to the vertical and forward directions. These disparities collapsed to simple vertical disparities in the projective binocular image plane. Subjects we

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Hao, ZiQi, ZhenJiang Zhang, and Han-Chieh Chao. "A Cluster-Based Fuzzy Fusion Algorithm for Event Detection in Heterogeneous Wireless Sensor Networks." Journal of Sensors 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/641235.

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As limited energy is one of the tough challenges in wireless sensor networks (WSN), energy saving becomes important in increasing the lifecycle of the network. Data fusion enables combining information from several sources thus to provide a unified scenario, which can significantly save sensor energy and enhance sensing data accuracy. In this paper, we propose a cluster-based data fusion algorithm for event detection. We usek-means algorithm to form the nodes into clusters, which can significantly reduce the energy consumption of intracluster communication. Distances between cluster heads and

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Divani, K., S. Selvadurai, and S. Molloy. "A novel use of cement as a salvage procedure in patients with complex spinal injuries with proximal junctional failure." Annals of The Royal College of Surgeons of England 100, no. 6 (2018): e154-e157. http://dx.doi.org/10.1308/rcsann.2018.0076.

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Long-construct fixations can be complicated by proximal junctional kyphosis. In elderly, high-risk patients with numerous comorbidities, lengthy surgical times and increased blood loss associated with revision osteotomies and extension of fusions are not often tolerated and pose serious life-threatening risks. We present a salvage technique used in a patient with proximal junctional failure and demonstrate its role in improving symptoms and functionality in those not deemed fit for major surgery. Pre- and postoperative pain scores in accordance with the visual analogue scale, walking distances

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Niles, W. D., J. R. Silvius, and F. S. Cohen. "Resonance energy transfer imaging of phospholipid vesicle interaction with a planar phospholipid membrane: undulations and attachment sites in the region of calcium-mediated membrane--membrane adhesion." Journal of General Physiology 107, no. 3 (1996): 329–51. http://dx.doi.org/10.1085/jgp.107.3.329.

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Membrane fusion of a phospholipid vesicle with a planar lipid bilayer is preceded by an initial prefusion stage in which a region of the vesicle membrane adheres to the planar membrane. A resonance energy transfer (RET) imaging microscope, with measured spectral transfer functions and a pair of radiometrically calibrated video cameras, was used to determine both the area of the contact region and the distances between the membranes within this zone. Large vesicles (5-20 microns diam) were labeled with the donor fluorophore coumarin-phosphatidylethanolamine (PE), while the planar membrane was l

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Peng, Xuesheng, Ruizhi Chen, Kegen Yu, Feng Ye, and Weixing Xue. "An Improved Weighted K-Nearest Neighbor Algorithm for Indoor Localization." Electronics 9, no. 12 (2020): 2117. http://dx.doi.org/10.3390/electronics9122117.

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The weighted K-nearest neighbor (WKNN) algorithm is the most commonly used algorithm for indoor localization. Traditional WKNN algorithms adopt received signal strength (RSS) spatial distance (usually Euclidean distance and Manhattan distance) to select reference points (RPs) for position determination. It may lead to inaccurate position estimation because the relationship of received signal strength and distance is exponential. To improve the position accuracy, this paper proposes an improved weighted K-nearest neighbor algorithm. The spatial distance and physical distance of RSS are used for

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Farahnakian, Fahimeh, and Jukka Heikkonen. "Deep Learning Based Multi-Modal Fusion Architectures for Maritime Vessel Detection." Remote Sensing 12, no. 16 (2020): 2509. http://dx.doi.org/10.3390/rs12162509.

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Object detection is a fundamental computer vision task for many real-world applications. In the maritime environment, this task is challenging due to varying light, view distances, weather conditions, and sea waves. In addition, light reflection, camera motion and illumination changes may cause to false detections. To address this challenge, we present three fusion architectures to fuse two imaging modalities: visible and infrared. These architectures can provide complementary information from two modalities in different levels: pixel-level, feature-level, and decision-level. They employed dee

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Wu, Hsin-Chieh, and Toly Chen. "A Fuzzy-Neural Ensemble and Geometric Rule Fusion Approach for Scheduling a Wafer Fabrication Factory." Mathematical Problems in Engineering 2013 (2013): 1–14. http://dx.doi.org/10.1155/2013/956978.

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In this study, the fuzzy-neural ensemble and geometric rule fusion approach is presented to optimize the performance of job dispatching in a wafer fabrication factory with an intelligent rule. The proposed methodology is a modification of a previous study by fusing two dispatching rules and diversifying the job slacks in novel ways. To this end, the geometric mean of the neighboring distances of slacks is maximized. In addition, the fuzzy c-means (FCM) and backpropagation network (BPN) ensemble approach was also proposed to estimate the remaining cycle time of a job, which is an important inpu

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Kim, Jongchan, and Sungho Kim. "Temperature Estimation Adaptive to Variables over Distance Using Infrared–LiDAR." Applied Sciences 11, no. 9 (2021): 4063. http://dx.doi.org/10.3390/app11094063.

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Measuring accurate surface temperature using a long-wave infrared camera and a non-contact thermometer, is very difficult due to variables such as atmospheric transmittance, emissivity, and influences from the environment such as atmosphere, sun, and dust. Conventional approaches use geometric correction or atmospheric transmittance modeling for temperature correction. However, these approaches have limitations in finding an accurate temperature because it is difficult to fully model a physical phenomenon. In this paper, a new temperature estimation method using distance information of LiDAR a

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Efatmaneshnik, Mahmoud, Allison Kealy, Asghar Tabatabei Balaei, and Andrew G. Dempster. "Information Fusion for Localization Within Vehicular Networks." Journal of Navigation 64, no. 3 (2011): 401–16. http://dx.doi.org/10.1017/s0373463311000075.

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Cooperative positioning (CP) is a localization technique originally developed for use across wireless sensor networks. With the emergence of Dedicated Short Range Communications (DSRC) infrastructure for use in Intelligent Transportation Systems (ITS), CP techniques can now be adapted for use in location determination across vehicular networks. In vehicular networks, the technique of CP fuses GPS positions with additional sensed information such as inter-vehicle distances between the moving vehicles to determine their location within a neighbourhood. This paper presents the results obtained fr

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Sokal, Robert R., Peter E. Smouse, and James V. Neel. "THE GENETIC STRUCTURE OF A TRIBAL POPULATION, THE YANOMAMA INDIANS. XV. PATTERNS INFERRED BY AUTOCORRELATION ANALYSIS." Genetics 114, no. 1 (1986): 259–87. http://dx.doi.org/10.1093/genetics/114.1.259.

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ABSTRACT Fifteen allele frequencies have previously been determined for 50 villages of the Yanomama, an Amerindian tribe from southern Venezuela and northern Brazil. These frequencies were subjected to spatial autocorrelation analysis to investigate their population structure. There are significant spatial patterns for most allele frequencies. Clinal patterns, investigated by one-dimensional and directional spatial correlograms, were relatively few in number and were moderate in strength. Overall, however, there is a marked decline in genetic similarity with geographic distance. The results ar

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Baotic, Anton, Maxime Garcia, Markus Boeckle, and Angela Stoeger. "Field Propagation Experiments of Male African Savanna Elephant Rumbles: A Focus on the Transmission of Formant Frequencies." Animals 8, no. 10 (2018): 167. http://dx.doi.org/10.3390/ani8100167.

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African savanna elephants live in dynamic fission–fusion societies and exhibit a sophisticated vocal communication system. Their most frequent call-type is the ‘rumble’, with a fundamental frequency (which refers to the lowest vocal fold vibration rate when producing a vocalization) near or in the infrasonic range. Rumbles are used in a wide variety of behavioral contexts, for short- and long-distance communication, and convey contextual and physical information. For example, maturity (age and size) is encoded in male rumbles by formant frequencies (the resonance frequencies of the vocal tract

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Xu, Yuan, Hamid Reza Karimi, Yueyang Li, Fengyu Zhou, and Lili Bu. "Real-time accurate pedestrian tracking using extended finite impulse response filter bank for tightly coupling recent inertial navigation system and ultra-wideband measurements." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 232, no. 4 (2018): 464–72. http://dx.doi.org/10.1177/0959651818754977.

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To satisfy the increasing demands of the accuracy for the human localization, in this work, we propose a pedestrian tracking method by tightly coupling recent inertial navigation system–based and ultra-wideband–based measurements. In this mode, the difference between the distances derived from the inertial navigation system–based and ultra-wideband–based system is used as the observation of the data fusion filter. Moreover, in order to improve the performance of the extended finite impulse response filter, which depends on the averaging horizon ([Formula: see text]) when the error state vector

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Bera, Asish, Debotosh Bhattacharjee, and Mita Nasipuri. "Fusion-Based Hand Geometry Recognition Using Dempster–Shafer Theory." International Journal of Pattern Recognition and Artificial Intelligence 29, no. 05 (2015): 1556005. http://dx.doi.org/10.1142/s0218001415560054.

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This paper presents a new technique for user identification and recognition based on the fusion of hand geometric features of both hands without any pose restrictions. All the features are extracted from normalized left and right hand images. Fusion is applied at feature and also at decision level. Two probability-based algorithms are proposed for classification. The first algorithm computes the maximum probability for nearest three neighbors. The second algorithm determines the maximum probability of the number of matched features with respect to a thresholding on distances. Based on these tw

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