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Computing matched-epipolar projections

R. Hartley, R. Gupta
Proceedings of IEEE Conference on Computer Vision and Pattern Recognition  
to match the epipolar lines.  ...  This paper gives a new method for image rectification, the process of resampling pairs of stereo images taken from widely differing viewpoints in order to produce a pair of "matched epipolar projections  ...  to matched epipolar projections were computed and applied to the images.  ... 
doi:10.1109/cvpr.1993.341076 dblp:conf/cvpr/HartleyG93 fatcat:xbudi26spzgdbgaaaivgyh7u5q

Camera Calibration from Dynamic Silhouettes Using Motion Barcodes

Gil Ben-Artzi, Yoni Kasten, Shmuel Peleg, Michael Werman
2016 2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)  
Computing the epipolar geometry between cameras with very different viewpoints is often problematic as matching points are hard to find.  ...  The use of motion barcodes leads to increased speed, accuracy, and robustness in computing the epipolar geometry.  ...  Figure 1 shows matching epipolar lines extracted using our approach. Following [27] , we use a RANSAC approach to test possible matching pairs of epipolar lines, and compute the epipolar geometry.  ... 
doi:10.1109/cvpr.2016.444 dblp:conf/cvpr/Ben-ArtziKPW16 fatcat:7uiqktmksvdphjly5zzulfkwbq

Camera Calibration from Dynamic Silhouettes Using Motion Barcodes

Gil Ben-Artzi, Yoni Kasten, Shmuel Peleg, Michael Werman
2017 arXiv   pre-print
Computing the epipolar geometry between cameras with very different viewpoints is often problematic as matching points are hard to find.  ...  The use of motion barcodes leads to increased speed, accuracy, and robustness in computing the epipolar geometry.  ...  Figure 1 shows matching epipolar lines extracted using our approach. Following [28] , we use a RANSAC approach to test possible matching pairs of epipolar lines, and compute the epipolar geometry.  ... 
arXiv:1506.07866v4 fatcat:3pacbnrdmzatzcglgsqpxsdlni

Equisolid Fisheye Stereovision Calibration and Point Cloud Computation

J. Moreau, A. Ambellouis, Y. Ruichek
2013 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
The second contribution is the description of a new epipolar matching based on a scan-circle principle and a dynamic programming technique adapted for fisheye images.  ...  The first contribution of this paper is the adaptation of an omnidirectional stereovision self-calibration algorithm to an equisolid fisheye projection model.  ...  ACKNOWLEDGMENTS This work is carried out as part of the project CAPLOC (Combinaison de l'Analyse d'image et de la connaissance de la Propagation des signaux pour la LOCalisation), supported by ANR and  ... 
doi:10.5194/isprsarchives-xl-7-w2-167-2013 fatcat:tcx7vbvdevharc7p5ctkkncr2i

QUASI-EPIPOLAR RESAMPLING OF HIGH RESOLUTION SATELLITE STEREO IMAGERY FOR SEMI GLOBAL MATCHING

N. Tatar, M. Saadatseresht, H. Arefi, A. Hadavand
2015 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
Semi-global matching is a well-known stereo matching algorithm in photogrammetric and computer vision society. Epipolar images are supposed as input of this algorithm.  ...  In this way by omitting the need for extra information, the speed of matching algorithm increased and the need for high temporal memory decreased.  ...  Here we briefly discuss matching cost computation and cost aggregation. Respect to disparity range, every pixel in left epipolar image could be matched by a pixel in right epipolar image.  ... 
doi:10.5194/isprsarchives-xl-1-w5-707-2015 fatcat:hbp3or4oy5bfnnn73b3i6y24oe

Terrain reconstruction algorithm based on epipolar line rectification and dense matching

Wenjuan Jiang, Yuan Gao, Jiayi Ma, Dazhi Zhang, Jinwen Tian, Jonathan Roberts, Jie Ma
2011 MIPPR 2011: Pattern Recognition and Computer Vision  
This paper proposes a terrain reconstruction algorithm based on epipolar line rectification and dense matching.  ...  Then, dense matching based on grid method is applied, which can provide sufficient matching points to estimate disparity of the rectified images.  ...  Firstly, in order to make the epipolar lines parallel, we introduce epipolar line rectification algorithm constituted of feature matching, fundamental matrix calculation and projection matrixes calculation  ... 
doi:10.1117/12.903301 fatcat:d6uyfzob7jh2zad2dm4ef6d5gi

3D Spherical Panoramic Epipolar Line Based on Essential Matrix

Shuai Liu, Jun Chen, Min Sun, Lingli Zhao, Xiang Wei, Hongwei Guo
2020 IEEE Access  
INTRODUCTION The epipolar constraint can reduce the image matching search space from two dimensions to one, thereby improving computational efficiency and reliability.  ...  ESTABLISHMENT OF THE DOUBLE SPHERICAL PROJECTION GEOMETRIC RELATIONSHIP Computer vision and photogrammetry theory are used in establishing the relationship between two projection planes and their corresponding  ... 
doi:10.1109/access.2020.3032747 fatcat:xjc7lqgl5jeuxdybsotlfhqjfu

Fundamental Matrix Computing Based on 3D Metrical Distance

Xinsheng Li, Xuedong Yuan
2021 Algorithms  
To reconstruct point geometry from multiple images, computation of the fundamental matrix is always necessary.  ...  ., the re-projective 3D metric geometric distance rather than projective space under RANSAC (Random Sample And Consensus) framework, our method can reveal the quality of the fundamental matrix visually  ...  The error is always the squared distance between a point and its epipolar line, which will be computed for both points of one match and averaged over all N matches.  ... 
doi:10.3390/a14030089 fatcat:hssrorlf5rgr7owyo65bujc4ha

On stereo-rectification of pushbroom images

C. de Franchis, E. Meinhardt-Llopis, J. Michel, J.-M. Morel, G. Facciolo
2014 2014 IEEE International Conference on Image Processing (ICIP)  
Examples will be made available online to the computer vision community.  ...  Image stereo pairs obtained from pinhole cameras can be stereo-rectified, thus permitting to test and use the many standard stereo matching algorithms of the literature.  ...  The projection of this quadric on the reference view contains many epipolar curves: epipolar curves are not conjugate. matching task and permitting to use all classic stereo matching algorithms.  ... 
doi:10.1109/icip.2014.7026102 dblp:conf/icip/FranchisMMMF14 fatcat:nodczvb4erf3njhy7uwksmj72i

MAP Estimation of Epipolar Geometry by EM Algorithm and Local Diffusion

Wenfeng Li, Baoxin Li
2007 2007 IEEE International Conference on Image Processing  
Finding epipolar geometry for two images is a fundamental problem in computer vision.  ...  In turn, more accurate epipolar geometry is recovered.  ...  Matching score is re-computed with the estimated fundamental matrix. Step 4.  ... 
doi:10.1109/icip.2007.4379800 dblp:conf/icip/LiL07 fatcat:aytqzwp4rba6vefanpxplqgz54

Stereo Vision Based Reconstruction of Huge Urban Areas from an Airborne Pushbroom Camera (HRSC) [chapter]

Heiko Hirschmüller, Frank Scholten, Gerd Hirzinger
2005 Lecture Notes in Computer Science  
These images cannot be geometrically corrected for matching purposes such that epipolar lines are exactly straight and parallel to each other.  ...  This is a necessary prerequisite for using an accurate, but memory intensive semi global stereo matching method that is based on pixelwise matching.  ...  For 3D computer vision purposes it is important to have a projection model of the corrected 2D pushbroom images.  ... 
doi:10.1007/11550518_8 fatcat:wvu7efo72rgs3nnnl4ez5t4fem

On Pencils of Tangent Planes and the Recognition of Smooth 3D Shapes from Silhouettes [chapter]

Svetlana Lazebnik, Amit Sethi, Cordelia Schmid, David Kriegman, Jean Ponce, Martial Hebert
2002 Lecture Notes in Computer Science  
Feature vectors, which can be projective, affine, or Euclidean, are computed using the planes that pass through a fixed baseline and are also tangent to the object's surface.  ...  The paper presents experimental results for the case of internally calibrated perspective cameras, where the feature vectors are angles between epipolar tangent planes.  ...  To facilitate the computation of epipolar tangents, the contours are represented as cubic B-splines.  ... 
doi:10.1007/3-540-47977-5_43 fatcat:64nkzmi7evhtzn6yy7cldm4mwi

Models from image triplets using epipolar gradient features

Etienne Vincent, Robert Laganière
2007 Image and Vision Computing  
The selected points are based on epipolar gradients, and consist in stable image features relevant to reconstruction.  ...  In an application where sparse matching of feature points is used towards fast scene reconstruction, the choice of the type of features to be matched has an important impact on the quality of the resulting  ...  It can be computed by projecting I(x) onto the epipolar line l = (l 1 , l 2 , l 3 ), giving the explicit formula: ep (x) = I(x) · ( −l 3 l1 , l 3 l2 ) ( −l 3 l 1 , l 3 l 2 ) (7) where l can be obtained  ... 
doi:10.1016/j.imavis.2006.12.021 fatcat:xdh7be3aefbkfnq7ibp4c7t6je

Interpolation of three views based on epipolar geometry

Makoto Kimura, Hideo Saito, Bernd Girod, Charles A. Bouman, Eckehard G. Steinbach
2000 Visual Communications and Image Processing 2001  
Projective geometry has recently been used in the field of computer vision, because projective geometry can be easily determined compararing with Euclidean geometry.  ...  Therefore, consistent matching in three images is estimated and images can be interpolated from the matching information.  ...  of epipolar lines between three images and an example of matching points: (a) epipolar lines in original images ; (b) rectified epipolar lines and examples of matching points Figure 5 . 5 Projective  ... 
doi:10.1117/12.411799 fatcat:ssbztgihkfe7ljnhzyvvwmuahq

Correspondence and segmentation of multiple rigid motions via epipolar geometry

Gang Xu, S. Tsuji
1996 Proceedings of 13th International Conference on Pattern Recognition  
This paper presents a new approach to matching and segmenting multiple rigid motions using epipolar constraint.  ...  Epipolar geometry underlying the motion images are rst recovered, and the epipolar equations are used to reduce search for correspondence from 2dimensional to 1-dimensional, thus resolving the \aperture  ...  Secondly, to nd the epipolar equations underlying the two images, we take the generate-and-test strategy, that is, we generate hypotheses of groups of matched points, compute epipolar equations for them  ... 
doi:10.1109/icpr.1996.546021 dblp:conf/icpr/XuT96 fatcat:arppfqbpzzfqxmtjnsjhm6ebkq
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