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Articoli di riviste sul tema "Scanner data"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 febbraio 2022

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1

Bohner, Lauren, Daniel Habor, Klaus Radermacher, Stefan Wolfart, and Juliana Marotti. "Scanning of a Dental Implant with a High-Frequency Ultrasound Scanner: A Pilot Study." Applied Sciences 11, no. 12 (June 14, 2021): 5494. http://dx.doi.org/10.3390/app11125494.

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The purpose of this in vitro study was to assess the trueness of a dental implant scanned using an intraoral high-frequency ultrasound prototype and compared with conventional optical scanners. An acrylic resin cast containing a dental implant at position 11 was scanned with a fringe projection 3D sensor for use as a reference dataset. The same cast was scanned 10 times for each group. Ultrasound scanning was performed with a high-frequency probe (42 MHz, aperture diameter of 4 mm and focus length of 8 mm), and 3D images were reconstructed based on the depth of each surface point echo. Optical

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2

Ruzgienė, Birutė, Renata Bagdžiūnaitė, and Vilma Ruginytė. "SCANNING AERIAL PHOTOS USING A NON-PROFESSIONAL SCANNER." Geodesy and Cartography 38, no. 3 (October 1, 2012): 118–21. http://dx.doi.org/10.3846/20296991.2012.728901.

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For scanning analog aerial photographs, digital photogrammetry requires specific and expensive photogrammetric scanners. However, we only have a simple A4 format scanner useful for solving some special photogrammetric tasks applied for analyzing the possibilities of scanning photographic material. The paper investigates the peculiarities of scanning analog aerial photos using the scanner processing pictures smaller than an A4 format. The achieved results are compared with digital data obtained using a professional photogrammetric scanner. Experimental photogrammetric measurements have showed t

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3

Rabah, Chaima Ben, Gouenou Coatrieux, and Riadh Abdelfattah. "Boosting up Source Scanner Identification Using Wavelets and Convolutional Neural Networks." Traitement du Signal 37, no. 6 (December 31, 2020): 881–88. http://dx.doi.org/10.18280/ts.370601.

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In this paper, we present a conceptually innovative method for source scanner identification (SSI), that is to say, identifying the scanner at the origin of a scanned document. Solutions from literature can distinguish between scanners of different brands and models but fail to differentiate between scanners of the same models. To overcome this issue, the approach we propose takes advantage of a convolutional neural network (CNN) to automatically extract intrinsic scanner features from the distribution of the coefficients of the diagonal high-frequency (HH) sub-band of the discrete stationary

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4

Nestle, U., S. Kremp, D. Hellwig, A. Grgic, H. G. Buchholz, W. Mischke, C. Gromoll, et al. "Multi-centre calibration of an adaptive thresholding method for PET-based delineation of tumour volumes in radiotherapy planning of lung cancer." Nuklearmedizin 51, no. 03 (2012): 101–10. http://dx.doi.org/10.3413/nukmed-0452-11-12.

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SummaryPurpose: To evaluate the calibration of an adaptive thresholding algorithm (contrastoriented algorithm) for FDG PET-based delineation of tumour volumes in eleven centres with respect to scanner types and image data processing by phantom measurements. Methods: A cylindrical phantom with spheres of different diameters was filled with FDG realizing different signal-to-background ratios and scanned using 5 Siemens Biograph PET/CT scanners, 5 Philips Gemini PET/CT scanners, and one Siemens ECAT-ART PET scanner. All scans were analysed by the contrast-oriented algorithm implemented in two dif

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5

Stangeland, Marcus, Trond Engjom, Martin Mezl, Radovan Jirik, Odd Gilja, Georg Dimcevski, and Kim Nylund. "Interobserver Variation of the Bolus-and-Burst Method for Pancreatic Perfusion with Dynamic – Contrast-Enhanced Ultrasound." Ultrasound International Open 03, no. 03 (June 2017): E99—E106. http://dx.doi.org/10.1055/s-0043-110475.

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Abstract Purpose Dynamic contrast-enhanced ultrasound (DCE-US) can be used for calculating organ perfusion. By combining bolus injection with burst replenishment, the actual mean transit time (MTT) can be estimated. Blood volume (BV) can be obtained by scaling the data to a vessel on the imaging plane. The study aim was to test interobserver agreement for repeated recordings using the same ultrasound scanner and agreement between results on two different scanner systems. Materials and Methods Ten patients under evaluation for exocrine pancreatic failure were included. Each patient was scanned

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6

Provenzale, James M., Brian A. Taylor, Elisabeth A. Wilde, Michael Boss, and Walter Schneider. "Analysis of variability of fractional anisotropy values at 3T using a novel diffusion tensor imaging phantom." Neuroradiology Journal 31, no. 6 (July 24, 2018): 581–86. http://dx.doi.org/10.1177/1971400918789383.

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We employed a novel diffusion tensor imaging phantom to study intra- and interscanner reproducibility on two 3T magnetic resonance (MR) scanners. Using a phantom containing thousands of hollow micron-size tubes in complex arrays, we performed two experiments using a b value of 1000 s/ms2 on two Siemens 3T Trio scanners. First, we performed 12-direction scans. Second, on one scanner, we performed two 64-direction protocols with different repetition times (TRs). We used a one-way analysis of variance to calculate differences between scanners and the Mann-Whitney U test to assess differences betw

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7

Xu, Ji Hong, Xiao Lin Dai, and Shu Ping Gao. "A Study on Data Acquisition from Sections of Virtual Coat Profile." Advanced Materials Research 230-232 (May 2011): 1204–9. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.1204.

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Data was obtained through scanning manikin and coats separated by using [TC]2 3D body scanner. The method, using [TC]2 scanner as the experimental method and through double converting the scanned data format to get torso geometric section sets, was analyzed. Main program source code of Torso was provided in this paper. Geometric algorithms of point cloud data and curve data in there sections was provided based on the interception ways of horizontal sections, vertical sections and other random oblique sections toward torso geometric cross section.

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8

Chen, Kai, Kai Zhan, Xiaocong Yang, and Da Zhang. "Accuracy Improvement Method of a 3D Laser Scanner Based on the D-H Model." Shock and Vibration 2021 (May 25, 2021): 1–9. http://dx.doi.org/10.1155/2021/9965904.

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A three-dimensional (3D) laser scanner with characteristics such as acquiring huge point cloud data and noncontact measurement has revolutionized the surveying and mapping industry. Nonetheless, how to guarantee the 3D laser scanner precision remains the critical factor that determines the excellence of 3D laser scanners. Hence, this study proposes a 3D laser scanner error analysis and calibration-method-based D-H model, applies the D-H model method in the robot area to the 3D laser scanner coordinate for calculating the point cloud data and creatively derive the error model, comprehensively a

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9

Elbrecht, Pirjo, Jaak Henno, and Knut Joosep Palm. "Body Measurements Extraction from 3D Scanner Data." Applied Mechanics and Materials 339 (July 2013): 372–77. http://dx.doi.org/10.4028/www.scientific.net/amm.339.372.

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The growing power of computing, development of methods of 3D graphics for human body modeling and simulation together with development of 3D image capture technologies using 3D scanners has caused rapid development of digital tailoring - a complex of methods where made-to-measure clothing is produced starting with 3D scanning of a customer, extraction of essential measurements from obtained data cloud and then automatic production of a garment corresponding to exact measures of the customer. Extraction of exact measures from the ca 200000 data points produced by 3D scanner is a complex problem

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10

Liebold, F., and H. G. Maas. "Integrated Georeferencing of LiDAR and Camera Data Acquired from a Moving Platform." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-3 (August 11, 2014): 191–96. http://dx.doi.org/10.5194/isprsarchives-xl-3-191-2014.

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This paper presents an approach for modeling the trajectory of a moving platform equipped with a laser scanner and a camera. In most cases, GNSS and INS is used to determine the orientation of the platform, but sometimes it is impossible to use GNSS, especially indoor applications should be mentioned here. INS has a bad error propagation without GNSS. In addition, the accuracy of GNSS and low-cost INS is limited and often not equivalent to the accuracy potential of laser scanners. For the camera, there exists the well-known alternative to obtain the orientation parameters via triangulation, fo

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11

Im, Chang-Hee, Ji-Man Park, Jang-Hyun Kim, You-Jung Kang, and Jee-Hwan Kim. "Assessment of Compatibility between Various Intraoral Scanners and 3D Printers through an Accuracy Analysis of 3D Printed Models." Materials 13, no. 19 (October 4, 2020): 4419. http://dx.doi.org/10.3390/ma13194419.

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To assess the accuracy of various intraoral scanners (IOSs) and to investigate the existence of mutual compatibility that affects the accuracy between IOS and 3-dimensional (3D) printing using a scan quadrant model. For clinical implication, crown preparations and cavity design according to prosthetic diagnosis and treatment considerations must be acquired by a digital scanner. The selected typodont model was scanned using a reference scanner, from which reference (Ref) standard tessellation language (STL) data were created. Data obtained by scanning the typodont model with IOSs based on three

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12

Todo, Chikage, Hidetoshi Ikeno, Keitaro Yamase, Toko Tanikawa, Mizue Ohashi, Masako Dannoura, Toshifumi Kimura, and Yasuhiro Hirano. "Reconstruction of Conifer Root Systems Mapped with Point Cloud Data Obtained by 3D Laser Scanning Compared with Manual Measurement." Forests 12, no. 8 (August 21, 2021): 1117. http://dx.doi.org/10.3390/f12081117.

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Three-dimensional (3D) root system architecture (RSA) is a predominant factor in anchorage failure in trees. Only a few studies have used 3D laser scanners to evaluate RSA, but they do not check the accuracy of measurements. 3D laser scanners can quickly obtain RSA data, but the data are collected as a point cloud with a large number of points representing surfaces. The point cloud data must be converted into a set of interconnected axes and segments to compute the root system traits. The purposes of this study were: (i) to propose a new method for easily obtaining root point data as 3D coordi

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13

Nam, Na-Eun, Seung-Ho Shin, Jung-Hwa Lim, Bora Lee, June-Sung Shim, and Jong-Eun Kim. "Accuracy of Implant Position Reproduction According to Exposed Length of the Scan Body during Optical Scanning: An In Vitro Study." Applied Sciences 11, no. 4 (February 13, 2021): 1689. http://dx.doi.org/10.3390/app11041689.

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Accuracy of implant position reproduction according to various types of scanners, implant placement depths, and tooth positions are unknown. The purpose of this study was to compare the accuracy of implant position reproduction for differences in the exposed length of the implant scan body according to scanner type and tooth position. Implants were placed at the positions of the lateral incisor, first premolar, and first molar in the study model at the bone level and submerged 1.5 mm, 3.0 mm, 4.5 mm, and 6.0 mm. The completed models were scanned with one type of tabletop scanner and three type

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14

Baron, Steve, and Andrew Lock. "The Challenges of Scanner Data." Journal of the Operational Research Society 46, no. 1 (January 1995): 50. http://dx.doi.org/10.2307/2583835.

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15

Baron, Steve, and Andrew Lock. "The Challenges of Scanner Data." Journal of the Operational Research Society 46, no. 1 (January 1995): 50–61. http://dx.doi.org/10.1057/jors.1995.6.

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16

Vu, T. Thuy, and Mitsuharu Tokunaga. "Filtering Airborne Laser Scanner Data." Photogrammetric Engineering & Remote Sensing 70, no. 11 (November 1, 2004): 1267–74. http://dx.doi.org/10.14358/pers.70.11.1267.

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17

Biedl, Therese, Stephane Durocher, and Jack Snoeyink. "Reconstructing polygons from scanner data." Theoretical Computer Science 412, no. 32 (July 2011): 4161–72. http://dx.doi.org/10.1016/j.tcs.2010.10.026.

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18

Komissarov, A. V., A. V. Remizov, M. M. Shlyakhova, and K. K. Yambaev. "Handheld Laser Scanner Research." Geodesy and Cartography 952, no. 10 (November 20, 2019): 47–54. http://dx.doi.org/10.22389/0016-7126-2019-952-10-47-54.

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The authors consider hand-held laser scanners, as a new photogrammetric tool for obtaining three-dimensional models of objects. The principle of their work and the newest optical systems based on various sensors measuring the depth of space are described in detail. The method of simultaneous navigation and mapping (SLAM) used for combining single scans into point cloud is outlined. The formulated tasks and methods for performing studies of the DotProduct (USA) hand-held laser scanner DPI?8X based on a test site survey are presented. The accuracy requirements for determining the coordinates of

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19

Heinzel, J., and M. O. Huber. "TLS FIELD DATA BASED INTENSITY CORRECTION FOR FOREST ENVIRONMENTS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (June 23, 2016): 643–49. http://dx.doi.org/10.5194/isprs-archives-xli-b8-643-2016.

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Terrestrial laser scanning (TLS) is increasingly used for forestry applications. Besides the three dimensional point coordinates, the 'intensity' of the reflected signal plays an important role in forestry and vegetation studies. The benefit of the signal intensity is caused by the wavelength of the laser that is within the near infrared (NIR) for most scanners. The NIR is highly indicative for various vegetation characteristics. <br><br> However, the intensity as recorded by most terrestrial scanners is distorted by both external and scanner specific factors. Since details about s

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20

Elbrecht, Pirjo, Jaak Henno, and Knut Joosep Palm. "Waist Circumference Measurement Extraction from 3D Scanner Data." Advanced Materials Research 739 (August 2013): 725–31. http://dx.doi.org/10.4028/www.scientific.net/amr.739.725.

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Abstract (sommario):

The growing power of computing, development of methods of 3D graphics for human body modeling and simulation together with development of 3D image capture technologies using 3D scanners has caused rapid development of digital tailoring - a complex of methods where made-to-measure clothing is produced starting with 3D scanning of a customer, extraction of essential measurements from obtained data cloud and then automatic production of a garment corresponding to exact measures of the customer. Extraction of exact measures from the ca 200000 data points produced by 3D scanner is a complex problem

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21

Kedzierski, M., D. Wierzbickia, A. Fryskowska, and B. Chlebowska. "ANALYSIS OF THE POSSIBILITIES OF USING LOW-COST SCANNING SYSTEM IN 3D MODELING." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B3 (June 9, 2016): 261–67. http://dx.doi.org/10.5194/isprsarchives-xli-b3-261-2016.

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The laser scanning technique is still a very popular and fast growing method of obtaining information on modeling 3D objects. The use of low-cost miniature scanners creates new opportunities for small objects of 3D modeling based on point clouds acquired from the scan. The same, the development of accuracy and methods of automatic processing of this data type is noticeable. The article presents methods of collecting raw datasets in the form of a point-cloud using a low-cost ground-based laser scanner FabScan. As part of the research work 3D scanner from an open source FabLab project was constr

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22

Kedzierski, M., D. Wierzbickia, A. Fryskowska, and B. Chlebowska. "ANALYSIS OF THE POSSIBILITIES OF USING LOW-COST SCANNING SYSTEM IN 3D MODELING." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B3 (June 9, 2016): 261–67. http://dx.doi.org/10.5194/isprs-archives-xli-b3-261-2016.

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The laser scanning technique is still a very popular and fast growing method of obtaining information on modeling 3D objects. The use of low-cost miniature scanners creates new opportunities for small objects of 3D modeling based on point clouds acquired from the scan. The same, the development of accuracy and methods of automatic processing of this data type is noticeable. The article presents methods of collecting raw datasets in the form of a point-cloud using a low-cost ground-based laser scanner FabScan. As part of the research work 3D scanner from an open source FabLab project was constr

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23

Heinzel, J., and M. O. Huber. "TLS FIELD DATA BASED INTENSITY CORRECTION FOR FOREST ENVIRONMENTS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (June 23, 2016): 643–49. http://dx.doi.org/10.5194/isprsarchives-xli-b8-643-2016.

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Abstract (sommario):

Terrestrial laser scanning (TLS) is increasingly used for forestry applications. Besides the three dimensional point coordinates, the 'intensity' of the reflected signal plays an important role in forestry and vegetation studies. The benefit of the signal intensity is caused by the wavelength of the laser that is within the near infrared (NIR) for most scanners. The NIR is highly indicative for various vegetation characteristics. &lt;br&gt;&lt;br&gt; However, the intensity as recorded by most terrestrial scanners is distorted by both external and scanner specific factors. Since

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24

Hosseinyalamdary, S., and A. Yilmaz. "3D SUPER-RESOLUTION APPROACH FOR SPARSE LASER SCANNER DATA." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences II-3/W5 (August 19, 2015): 151–57. http://dx.doi.org/10.5194/isprsannals-ii-3-w5-151-2015.

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Laser scanner point cloud has been emerging in Photogrammetry and computer vision to achieve high level tasks such as object tracking, object recognition and scene understanding. However, low cost laser scanners are noisy, sparse and prone to systematic errors. This paper proposes a novel 3D super resolution approach to reconstruct surface of the objects in the scene. This method works on sparse, unorganized point clouds and has superior performance over other surface recovery approaches. Since the proposed approach uses anisotropic diffusion equation, it does not deteriorate the object bounda

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Maeng, Jiyoun, Young-Jun Lim, Bongju Kim, Myung-Joo Kim, and Ho-Beom Kwon. "A New Approach to Accuracy Evaluation of Single-Tooth Abutment Using Two-Dimensional Analysis in Two Intraoral Scanners." International Journal of Environmental Research and Public Health 16, no. 6 (March 20, 2019): 1021. http://dx.doi.org/10.3390/ijerph16061021.

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The aim of this study was to two-dimensionally evaluate deviation errors at five digital cross-sections of single-tooth abutment in regards to data obtained from two intraoral scanners, and to evaluate accuracy of individual scanners. Two intraoral scanners, the Trios 3® (3 Shape, Copenhagen, Denmark) and EzScan® (Vatech, Hwaseong, Korea), were evaluated by utilizing 13 stone models. The superimposed 3D data files were sectioned into five different planes: buccal-lingual section (BL), mesial-distal section (MD), transverse high section (TH), transverse middle section (TM), and transverse low s

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Dědič, Martin. "3D scanning and analysis of acquired data of historically and culturally significant objects referring to the work of Adalbert Stifter." MATEC Web of Conferences 279 (2019): 01014. http://dx.doi.org/10.1051/matecconf/201927901014.

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The aim of the paper is to bring new findings from ongoing specific university research. Within this project, the light scanner scanned historically and culturally significant objects referring to the work of Czech-Austrian writer Adalbert Stifter in South Bohemia and Lower Austria. It also analyzed the data obtained with the light 3D scanner. The data was generated as a cloud of points. With respect to object´s size, multiple parts of each object were scanned individually. By combining individual scans and removing unwanted points (noise), models - digital twins of objects - were developed. C

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Toś, Cezary. "The Possibilities of Using the Terrestrial Scanning Data for Classification of Rocks in Limestone Mine “Czatkowice”." Reports on Geodesy and Geoinformatics 97, no. 1 (February 3, 2015): 80–90. http://dx.doi.org/10.2478/rgg-2014-0013.

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AbstractThis paper presents results of a research of potential utilisation of the intensity of laser beam reflection recorded by ground-based lasers, for an initial classification of rock formations within the Czatkowice Limestone Quarry. As part of the research, spectrometric analysis in visible (VIS), near-infrared (NIR) and Short-wavelength infrared (SWIR) bands was carried out for rock samples typical for the Czatkowice Quarry. Moreover, the rock samples were scanned using equipment working within different wavelengths. The reflected intensity of the laser beam recorded for each rock sampl

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Lee, Kyungmin Clara, and Seong-Joon Park. "Digital Intraoral Scanners and Alginate Impressions in Reproducing Full Dental Arches: A Comparative 3D Assessment." Applied Sciences 10, no. 21 (October 29, 2020): 7637. http://dx.doi.org/10.3390/app10217637.

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The purpose of this in vivo study was to compare in vivo full arch intraoral scans obtained using two intraoral scanners and conventional impression. Twenty patients were scanned using TRIOS and iTero scanners, as well as conventional impression. Dental models obtained from alginate impression were scanned with a laboratory desktop scanner. Individual intraoral scan data were compared with corresponding model scans using three-dimensional (3D) surface analysis. The average surface deviations were calculated for quantitative evaluation, and these values were compared between two intraoral scann

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Foekens, Eijte W., and Peter S. H. Leeflang. "Comparing scanner data with traditional store audit data." Scandinavian International Business Review 1, no. 1 (January 1992): 2. http://dx.doi.org/10.1016/0962-9262(92)90030-a.

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Foekens, Eijte W., and Peter S. H. Leeflang. "Comparing scanner data with traditional store audit data." Scandinavian International Business Review 1, no. 1 (January 1992): 71–85. http://dx.doi.org/10.1016/0962-9262(92)90037-7.

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Štalmach, Ondrej, Alžbeta Sapietová, Vladimír Dekýš, Peter Šulka, and Lukáš Gajdoš. "Conversion of data from the laser scanner to the Ansys Workbench." MATEC Web of Conferences 254 (2019): 02003. http://dx.doi.org/10.1051/matecconf/201925402003.

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This paper deals with the data processing in the form of a cloud of points scanned using a handheld 3D laser scanner. The aim of this paper is to use this data to create a representative FEM model and compare two different approaches while one of them involves creating a CAD model and the other one not. The data processing is carried out in the freeware systems MeshLab and Meshmixer and FEM analysis in the software ANSYS Workbench.

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Hedges, Emily, Jenny Zinser, Mihail Dimitrov, Mathilde Antoniades, Lilla Porffy, Sara Pisani, Hannah Dickson, Philip McGuire, and Matthew J. Kempton. "M154. INTRA- AND INTER-SCANNER RELIABILITY OF GRAY MATTER VOLUME AND CORTICAL THICKNESS ESTIMATES: IMPLICATIONS FOR MULTICENTRE IMAGING STUDIES IN PSYCHOSIS." Schizophrenia Bulletin 46, Supplement_1 (April 2020): S194. http://dx.doi.org/10.1093/schbul/sbaa030.466.

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Abstract Background High-resolution structural MRI has been widely used in clinical research to detect and quantify subtle brain changes in patient populations. Findings from prospective, longitudinal studies show structural brain abnormalities as well as progressive gray matter changes over time in individuals at clinical high risk for psychosis compared to healthy subjects. In recent years, research in this field has seen an increase in multicentre neuroimaging projects, such as EU-GEI, PSYSCAN, PRONIA and NAPLS. Additional sources of variance, alongside known technological and biological fa

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Lowe, Gerry, Bruce Spottiswoode, Jerome Declerck, Keith Sullivan, Mhd Saeed Sharif, Wai-Lup Wong, and Bal Sanghera. "Positron emission tomography PET/CT harmonisation study of different clinical PET/CT scanners using commercially available software." BJR|Open 2, no. 1 (November 2020): 20190035. http://dx.doi.org/10.1259/bjro.20190035.

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Objectives: Harmonisation is the process whereby standardised uptake values from different scanners can be made comparable. This PET/CT pilot study aimed to evaluate the effectiveness of harmonisation of a modern scanner with image reconstruction incorporating resolution recovery (RR) with another vendor older scanner operated in two-dimensional (2D) mode, and for both against a European standard (EARL). The vendor-proprietary software EQ•PET was used, which achieves harmonisation with a Gaussian smoothing. A substudy investigated effect of RR on harmonisation. Methods: Phantom studies on each

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Zhen, Chen, Eric A. Finkelstein, Shawn A. Karns, Ephraim S. Leibtag, and Chenhua Zhang. "Scanner Data‐Based Panel Price Indexes." American Journal of Agricultural Economics 101, no. 1 (June 18, 2018): 311–29. http://dx.doi.org/10.1093/ajae/aay032.

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Skrzypczyński, Piotr. "Environment Modelling Using Optical Scanner Data." IFAC Proceedings Volumes 30, no. 20 (September 1997): 181–86. http://dx.doi.org/10.1016/s1474-6670(17)44262-5.

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Burian, F., L. Zalud, T. Florian, and T. Jilek. "Unified Storage for Laser Scanner Data*." IFAC Proceedings Volumes 45, no. 7 (2012): 63–66. http://dx.doi.org/10.3182/20120523-3-cz-3015.00014.

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Ghosh, Amit K. "Targeted promotions using scanner panel data." Journal of Product & Brand Management 6, no. 6 (December 1997): 405–16. http://dx.doi.org/10.1108/10610429710190450.

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Kamakura, Wagner A., and Gary J. Russell. "Measuring brand value with scanner data." International Journal of Research in Marketing 10, no. 1 (March 1993): 9–22. http://dx.doi.org/10.1016/0167-8116(93)90030-3.

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Hwang, Seongyoon, and Taehun Jung. "Measuring Price Rigidity Using Scanner Data." Korean Development Economics Association 27, no. 2 (June 30, 2021): 101–25. http://dx.doi.org/10.20464/kdea.2021.27.2.4.

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Shelburne, Edward. "Producing High-Quality 3-D Models for Specimen Research with the Creaform 3-D Scanner at the Sternberg Museum of Natural History." Biodiversity Information Science and Standards 2 (June 15, 2018): e25908. http://dx.doi.org/10.3897/biss.2.25908.

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Abstract (sommario):

Digitization of natural history collections for specimen accessibility, research, and posterity has been a major push in museums over the past decade. One increasingly common form of specimen digitization is three-dimensional (3-D) surface scanning. There are numerous 3-D scanners on the market, including visible light and laser surface scanners. However, mobility of the scanning device, mesh resolution, and texture fidelity are among the most prominent issues facing regular implementation of 3-D scanning procedures for research purposes. Morphometrics research involving the digitization of Xi

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Hoffman, Mark S. "Impact of Scanning Technololgy and Package Design on the Ergonomics of Scanning at the Checkout." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 40, no. 7 (October 1996): 429–33. http://dx.doi.org/10.1177/154193129604000712.

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The design of bar code scanners has steadily improved scanning performances over the past twenty years. Changes in scan patterns, improvements in decode algorithms, and design features of the hardware user interface have resulted in scanners that are ergonomically superior both in biomechanics and overall performance. This study reviewed scanner performance and technological developments, and compare these to changes in packaging designs. The results showed that future innovations in scanner design will have minimal impact on improving throughput and the accuracy of data captured because of pa

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Мирзоева, Мария, Maria Mirzoeva, Сергей Жолудев, and Sergey Zholudev. "COMPARATIVE CHARACTERISTICS OF THE FIT CERAMIC RESTORATIONS ― A PILOT STUDY." Actual problems in dentistry 14, no. 3 (October 23, 2018): 41–44. http://dx.doi.org/10.18481/2077-7566-2018-14-3-41-44.

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Importance. The development of digital dentistry allows the use of new technologies to create orthopedic structures. Scanners in orthopedic dentistry are becoming an integral part of quality prosthetics. To work with new scanners requires not only the ability to perform the scanning procedure itself, but also to understand how accurately the scanner reproduces the surface relief. To determine the contact density of all-ceramic inserts in the removed teeth, this study was carried out. Objectives. Experimental comparison of the accuracy of the adhesion of all-ceramic inserts made using the

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Bonin, Rémi, Farbod Khameneifar, and J. R. R. Mayer. "Evaluation of the Metrological Performance of a Handheld 3D Laser Scanner Using a Pseudo-3D Ball-Lattice Artifact." Sensors 21, no. 6 (March 18, 2021): 2137. http://dx.doi.org/10.3390/s21062137.

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This paper proposes the use of a pseudo-3D ball-lattice artifact to characterize a handheld laser scanner from a metrological standpoint. The artifact allows the computation of local and global errors in measurement by using the reference-frame-independent parameters of size, form, and distance within the measuring volume of the scanner, and in a single point cloud, without the need for registration. A set of tests was performed using the whole measuring volume, and three acquisition parameters, namely the orientation of the sweeps during the scans, the exposure time, and the distance to the s

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Paquette, Steven, J. David Brantley, Brian D. Corner, Peng Li, and Thomas Oliver. "Automated Extraction of Anthropometric Data from 3D Images." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 44, no. 38 (July 2000): 727–30. http://dx.doi.org/10.1177/154193120004403811.

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Abstract (sommario):

The use of 3D scanning systems for the capture and measurement of human body dimensions is becoming commonplace. While the ability of available scanning systems to record the surface anatomy of the human body is generally regarded as acceptable for most applications, effective use of the images to obtain anthropometric data requires specially developed data extraction software. However, for large data sets, extraction of useful information can be quite time consuming. A major benefit therefore is to possess an automated software program that quickly facilitates the extraction of reliable anthr

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R. Shahrin, M., F. H. Hashim, W. M.D.W. Zaki, A. Hussain, and T. T. Raj. "3D Indoor Mapping System Using 2D LiDAR Sensor for Drones." International Journal of Engineering & Technology 7, no. 4.11 (October 2, 2018): 179. http://dx.doi.org/10.14419/ijet.v7i4.11.20797.

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Most 3D scanners are heavy, bulky and costly. These are the major factors that make them irrelevant to be attached to a drone for autonomous navigation. With modern technologies, it is possible to design a simple 3D scanner for autonomous navigation. The objective of this study is to design a cost effective 3D indoor mapping system using a 2D light detection and ranging (LiDAR) sensor for a drone. This simple 3D scanner is realised using a LiDAR sensor together with two servo motors to create the azimuth and elevation axes. An Arduino Uno is used as the interface between the scanner and comput

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Gollob, Christoph, Tim Ritter, and Arne Nothdurft. "Comparison of 3D Point Clouds Obtained by Terrestrial Laser Scanning and Personal Laser Scanning on Forest Inventory Sample Plots." Data 5, no. 4 (October 31, 2020): 103. http://dx.doi.org/10.3390/data5040103.

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Abstract (sommario):

In forest inventory, trees are usually measured using handheld instruments; among the most relevant are calipers, inclinometers, ultrasonic devices, and laser range finders. Traditional forest inventory has been redesigned since modern laser scanner technology became available. Laser scanners generate massive data in the form of 3D point clouds. We have developed a novel methodology to provide estimates of the tree positions, stem diameters, and tree heights from these 3D point clouds. This dataset was made publicly accessible to test new software routines for the automatic measurement of fore

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Voges, R., C. S. Wieghardt, and B. Wagner. "TIMESTAMP OFFSET DETERMINATION BETWEEN AN ACTUATED LASER SCANNER AND ITS CORRESPONDING MOTOR." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-1/W1 (May 30, 2017): 99–106. http://dx.doi.org/10.5194/isprs-annals-iv-1-w1-99-2017.

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Motor actuated 2D laser scanners are key sensors for many robotics applications that need wide ranging but low cost 3D data. There exist many approaches on how to build a 3D laser scanner using this technique, but they often lack proper synchronization for the timestamps of the actuator and the laser scanner. However, to transform the measurement points into three-dimensional space an appropriate synchronization is mandatory. Thus, we propose two different approaches to accomplish the goal of calculating timestamp offsets between laser scanner and motor prior to and after data acquisition. Bot

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Blaskow, R., and D. Schneider. "Analysis and correction of the dependency between laser scanner intensity values and range." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-5 (June 5, 2014): 107–12. http://dx.doi.org/10.5194/isprsarchives-xl-5-107-2014.

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Abstract (sommario):

Intensity values, which are registered by a terrestrial laser scanner system (TLS) for each point of a 3D point cloud in addition to its coordinates, are affected by the characteristic of the measured object and the parameters of the environment. The backscattered electromagnetic signal is influenced in his strength by the reflectivity of the scanned object surface, the incidence angle, the distance between laser scanner and object and the atmospheric respectively system specific setting of the TLS-measurement. The entity of all influences on the signal can be summarized in the laser range equ

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Russell, Gary J., and Wagner A. Kamakura. "Understanding Brand Competition Using Micro and Macro Scanner Data." Journal of Marketing Research 31, no. 2 (May 1994): 289–303. http://dx.doi.org/10.1177/002224379403100211.

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Abstract (sommario):

Recent advances in data gathering through checkout scanners have produced vast amounts of data on the actual behavior of consumers in the marketplace, creating new opportunities for managers and researchers to understand competition and consumers’ response to the marketing mix. Previous analyses of this data in the literature have focused either at the household (micro) or store (macro) level. The authors propose a method of enriching the analysis of competitive behavior by combining the in-depth consumer information obtained from a micro-level household scanner panel with the comprehensive ma

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Danielis, Alessandro, Massimiliano Guarneri, Massimo Francucci, Mario Ferri De Collibus, Giorgio Fornetti, and Arianna Mencattini. "A Quadratic Model with Nonpolynomial Terms for Remote Colorimetric Calibration of 3D Laser Scanner Data Based on Piecewise Cubic Hermite Polynomials." Mathematical Problems in Engineering 2015 (2015): 1–14. http://dx.doi.org/10.1155/2015/606948.

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Abstract (sommario):

The processing of intensity data from terrestrial laser scanners has attracted considerable attention in recent years. Accurate calibrated intensity could give added value for laser scanning campaigns, for example, in producing faithful 3D colour models of real targets and classifying easier and more reliable automatic tools. In cultural heritage area, the purely geometric information provided by the vast majority of currently available scanners is not enough for most applications, where indeed accurate colorimetric data is needed. This paper presents a remote calibration method for self-regis

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