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Relevant bibliographies by topics / 3D affine transformation

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Journal articles
Dissertations / Theses
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Academic literature on the topic '3D affine transformation'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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Journal articles on the topic "3D affine transformation"

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Lipuš, Bogdan, and Borut Žalik. "3D Convex Hull-Based Registration Method for Point Cloud Watermark Extraction." Sensors 19, no. 15 (2019): 3268. http://dx.doi.org/10.3390/s19153268.

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Most 3D point cloud watermarking techniques apply Principal Component Analysis (PCA) to protect the watermark against affine transformation attacks. Unfortunately, they fail in the case of cropping and random point removal attacks. In this work, an alternative approach is proposed that solves these issues efficiently. A point cloud registration technique is developed, based on a 3D convex hull. The scale and the initial rigid affine transformation between the watermarked and the original point cloud can be estimated in this way to obtain a coarse point cloud registration. An iterative closest

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Chou, Chang-Min, and Din-Chang Tseng. "Affine-Transformation-Invariant Public Fragile Watermarking for 3D Model Authentication." IEEE Computer Graphics and Applications 29, no. 2 (2009): 72–79. http://dx.doi.org/10.1109/mcg.2009.20.

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Nawfal, Sura, and Fakhrulddin Ali. "The acceleration of 3D graphics transformations based on CUDA." Journal of Engineering, Design and Technology 16, no. 6 (2018): 925–37. http://dx.doi.org/10.1108/jedt-04-2018-0072.

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Purpose The purpose of this paper is to achieve the acceleration of 3D object transformation using parallel techniques such as multi-core central processing unit (MC CPU) or graphic processing unit (GPU) or even both. Generating 3D animation scenes in computer graphics requires applying a 3D transformation on the vertices of the objects. These transformations consume most of the execution time. Hence, for high-speed graphic systems, acceleration of vertex transform is very much sought for because it requires many matrix operations (need) to be performed in a real time, so the execution time is

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Paláncz, B., P. Zaletnyik, J. L. Awange, and B. Heck. "Extension of the ABC-Procrustes algorithm for 3D affine coordinate transformation." Earth, Planets and Space 62, no. 11 (2010): 857–62. http://dx.doi.org/10.5047/eps.2010.10.004.

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Alam, Mohammad Mahmudul, and S. M. Mahbubur Rahman. "Affine transformation of virtual 3D object using 2D localization of fingertips." Virtual Reality & Intelligent Hardware 2, no. 6 (2020): 534–55. http://dx.doi.org/10.1016/j.vrih.2020.10.001.

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LEE, P. F., C. K. KAO, J. L. TSENG, B. S. JONG, and T. W. LIN. "3D Animation Compression Using Affine Transformation Matrix and Principal Component Analysis." IEICE Transactions on Information and Systems E90-D, no. 7 (2007): 1073–84. http://dx.doi.org/10.1093/ietisy/e90-d.7.1073.

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Song, Sha Jia, and Neng He. "Digital Image Processing and Coordinate Transformation for Vic-3D System." Applied Mechanics and Materials 333-335 (July 2013): 1002–6. http://dx.doi.org/10.4028/www.scientific.net/amm.333-335.1002.

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This paper discusses the problem about the processing of the images collected by Vic-3D measurement system and the coordinate transformation between the pixel coordinate and plane coordinate. Correlation analysis on image information is carried out by using Matlab. Template matching method is used to get the pixel coordinates of the marked part on the images. Based on affine transformation and least square method, I transform the pixel coordinates of the marked part on the images into the plane coordinates.

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Guo, Yang. "Closed-Form Solution to the Noncoplanar P4P Problem for Uncalibrated Camera." Applied Mechanics and Materials 145 (December 2011): 6–10. http://dx.doi.org/10.4028/www.scientific.net/amm.145.6.

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This paper presents a closed-form solution to determination of the position and orientation of a perspective camera with two unknown effective focal lengths for the noncoplanar perspective four point (P4P) problem. Given four noncoplanar 3D points and their correspondences in image coordinate, we convert perspective transformation to affine transformation, and formulate the problem using invariance to 3D affine transformation and arrive to a closed-form solution. We show how the noncoplanar P4P problem is cast into the problem of solving an eighth degree polynomial equation in one unknown. Thi

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Lu, Guo Liang, Yi Qi Zhou, and Xue Yong Li. "Mechanical Parts Recognition with 3D Graphical Modeling." Applied Mechanics and Materials 644-650 (September 2014): 4505–8. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.4505.

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Computer vision based mechanical parts recognition has been received much research attention in recent years. In this paper, we present a new framework to address this problem. The framework utilizes the computer graphic technology to model mechanical parts. Recognition is realized by comparing one query image to the instance images using improved affine transformation based on particle swarm optimization (PSO). Our experiment shows that the proposed framework outperforms the conventional invariant moments based recognition methods in recognition rates.

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Xu, Guan, Hui Shen, and Xiaotao Li. "Active Vision Reconstruction Based on Ratio Invariability of Triangle Areas Generated from Triangle Array in Affine Space." Measurement Science Review 20, no. 4 (2020): 162–70. http://dx.doi.org/10.2478/msr-2020-0020.

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AbstractAn active-vision process is presented by the affine invariability of the ratio of triangle areas to reconstruct the 3D object. Firstly, a plate with the triangle array is designed in the same plane of the planar laser. The image of the plate is rectified from the projection space to the affine space by the image of the line at infinity. Then the laser point and the centroids of the triangles constitute a new triangle that bridges the affine space and the original Euclidean space. The object coordinates are solved by the invariant of the triangle area ratio before and after the affine t

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Dissertations / Theses on the topic "3D affine transformation"

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Wang, Youyou DeSouza Guilherme. "A compact representation for 3D animation using octrees and affine transformation." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6645.

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Title from PDF of title page (University of Missouri--Columbia, viewed on March 10, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Thesis advisor: Dr. Guilherme DeSouza. Vita. Includes bibliographical references.

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Mikuláš, Karol. "Registrace CT objemových obrazů mozku pomocí globální afinní 3D transformace." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219508.

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At present, the medical industry rapidly develops new imaging techniques and improves the imaging methods. Simultaneously also are developed new methods for processing data acquired by these methods. Especially in the past few years has become very used method of registration data, which leads to image transformations of the same scene so that the condition as possible. The work deals with the method of processing data that provides detailed information to individual structures, developments of individual structures over time, allows to simultaneously displayanatomical and physiological inform

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Andrei, Octavian. "3D affine coordinate transformations." Thesis, KTH, Geodesi och satellitpositionering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-199846.

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This thesis investigates the three-dimensional (3D) coordinate transformation from a globalgeocentric coordinate system to a national terrestrial coordinate system. Numerical studies arecarried out using the Swedish geodetic data SWEREF 93 and RT90/RH70. Based on theHelmert transformation model with 7-parameters, two new models have been studied: firstly ageneral 3D affine transformation model has been developed using 9-parameters (threetranslations, three rotations and three scale factors) and secondly the model with 8-parameters(three translations, three rotations and two scale factors) has

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Haddeji, Akram. "Construction d'un Atlas 3D numérique de la cornée humaine par recalage d'images." Thèse, 2012. http://hdl.handle.net/1866/9186.

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Nous proposons de construire un atlas numérique 3D contenant les caractéristiques moyennes et les variabilités de la morphologie d’un organe. Nos travaux seront appliqués particulièrement à la construction d'un atlas numérique 3D de la totalité de la cornée humaine incluant la surface antérieure et postérieure à partir des cartes topographiques fournies par le topographe Orbscan II. Nous procédons tout d'abord par normalisation de toute une population de cornées. Dans cette étape, nous nous sommes basés sur l'algorithme de recalage ICP (iterative closest point) pour aligner simultanément les s

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Book chapters on the topic "3D affine transformation"

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Zheng, Xia, Xiaobo Zhou, Youxian Sun, and Stephen T. C. Wong. "Registration of 3D FMT and CT Images of Mouse Via Affine Transformation with Bayesian Iterative Closest Points." In Advances in Neural Networks – ISNN 2007. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-72393-6_135.

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Martinsson, Hanna, Adrien Bartoli, François Gaspard, and Jean-Marc Lavest. "Handling Missing Data in the Computation of 3D Affine Transformations." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11585978_7.

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Isokawa, Teijiro, Nobuyuki Matsui, and Haruhiko Nishimura. "Quaternionic Neural Networks." In Complex-Valued Neural Networks. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-214-5.ch016.

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Quaternions are a class of hypercomplex number systems, a four-dimensional extension of imaginary numbers, which are extensively used in various fields such as modern physics and computer graphics. Although the number of applications of neural networks employing quaternions is comparatively less than that of complex-valued neural networks, it has been increasing recently. In this chapter, the authors describe two types of quaternionic neural network models. One type is a multilayer perceptron based on 3D geometrical affine transformations by quaternions. The operations that can be performed in this network are translation, dilatation, and spatial rotation in three-dimensional space. Several examples are provided in order to demonstrate the utility of this network. The other type is a Hopfield-type recurrent network whose parameters are directly encoded into quaternions. The stability of this network is demonstrated by proving that the energy decreases monotonically with respect to the change in neuron states. The fundamental properties of this network are presented through the network with three neurons.

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Conference papers on the topic "3D affine transformation"

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Deng, Hua, Lei Chen, Jifu Zhang, and Rui Wang. "A 3D Model Watermarking Algorithm Resistant to Affine Transformation." In 2012 4th International Conference on Multimedia Information Networking and Security (MINES). IEEE, 2012. http://dx.doi.org/10.1109/mines.2012.11.

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Jiang, Zetao, Zhongxiang Chen, Bina Zheng, and Min Wu. "A Kind of 3D Reconstruction Method Based on Affine Transformation." In 2009 3rd International Conference on Genetic and Evolutionary Computing (WGEC). IEEE, 2009. http://dx.doi.org/10.1109/wgec.2009.111.

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Wang, Qin, Xiaoqing Feng, and Surong Yan. "A digital watermarking algorithm against affine transformation for 3D mesh model." In 2016 5th International Conference on Computer Science and Network Technology (ICCSNT). IEEE, 2016. http://dx.doi.org/10.1109/iccsnt.2016.8070264.

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Pan, Yijie, Yongtian Wang, Juan Liu, Xin Li, and Jia Jia. "Fast polygon-based method using 2D Fourier analysis of 3D affine transformation." In Digital Holography and Three-Dimensional Imaging. OSA, 2013. http://dx.doi.org/10.1364/dh.2013.dtu1a.3.

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Pan, Yijie, Yongtian Wang, Juan Liu, Xin Li, and Jia Jia. "Improved full analytical polygon-based method using Fourier analysis of 3D affine transformation." In Digital Holography and Three-Dimensional Imaging. OSA, 2015. http://dx.doi.org/10.1364/dh.2015.dw2a.7.

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Xia, Zheng, Xiaobo Zhou, Youxian Sun, Stephen T. C. Wong, Tuan D. Pham, and Xiaobo Zhou. "Registration of 3D FMT and CT Images of Mouse via Affine Transformation using Sequential Monte Carlo." In COMPUTATIONAL MODELS FOR LIFE SCIENCES/CMLS '07. AIP, 2007. http://dx.doi.org/10.1063/1.2816643.

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Date, Hiroaki, Satoshi Kanai, and Takeshi Kishinami. "Digital Watermarking for 3D Polygonal Model Based on Wavelet Transform." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/cie-9031.

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Abstract Recently, much interest is being taken in a method to protect the copyright of digital data and prevent illegal duplication of it. However, in the area of CAD/CAM and CG, there are no effective ways to protect the copyright of the 3D geometric models. As a first step to solve this problem, a new digital watermarking method for 3D polygonal models is introduced in this paper. Watermarking is one of the copyright protection methods where an invisible watermark is secretly embedded into the original data. The proposed watermarking method is based on the wavelet transform (WT) and multi-r

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Oberdörfer, Sebastian, and Marc Erich Latoschik. "Interactive gamified 3D-training of affine transformations." In VRST '16: 22th ACM Symposium on Virtual Reality Software and Technology. ACM, 2016. http://dx.doi.org/10.1145/2993369.2996314.

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Reyes-Acosta, A., I. Lopez-Juarez, R. Osorio-Comparan, and Gaston Lefranc. "Towards 3D pipe reconstruction employing affine transformations from video information." In 2016 IEEE International Conference on Automatica (ICA-ACCA). IEEE, 2016. http://dx.doi.org/10.1109/ica-acca.2016.7778430.

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