Simultaneous camera pose and correspondence estimation with motion coherence
Traditionally, the camera pose recovery problem has been formulated as one of estimating the optimal camera pose given a set of point correspondences. This critically depends on the accuracy of the point correspondences and would have problems in dealing with ambiguous features such as edge contours...
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sg-smu-ink.sis_research-58582020-01-23T07:09:50Z Simultaneous camera pose and correspondence estimation with motion coherence LIN, Wen-yan CHEONG, Loong-Fah TAN, Ping DONG, Guo LIU, Siying Traditionally, the camera pose recovery problem has been formulated as one of estimating the optimal camera pose given a set of point correspondences. This critically depends on the accuracy of the point correspondences and would have problems in dealing with ambiguous features such as edge contours and high visual clutter. Joint estimation of camera pose and correspondence attempts to improve performance by explicitly acknowledging the chicken and egg nature of the pose and correspondence problem. However, such joint approaches for the two-view problem are still few and even then, they face problems when scenes contain largely edge cues with few corners, due to the fact that epipolar geometry only provides a “soft” point to line constraint. Viewed from the perspective of point set registration, the point matching process can be regarded as the registration of points while preserving their relative positions (i.e. preserving scene coherence). By demanding that the point set should be transformed coherently across views, this framework leverages on higher level perceptual information such as the shape of the contour. While thus potentially allowing registration of non-unique edge points, the registration framework in its traditional form is subject to substantial point localization error and is thus not suitable for estimating camera pose. In this paper, we introduce an algorithm which jointly estimates camera pose and correspondence within a point set registration framework based on motion coherence, with the camera pose helping to localize the edge registration, while the “ambiguous” edge information helps to guide camera pose computation. The algorithm can compute camera pose over large displacements and by utilizing the non-unique edge points can recover camera pose from what were previously regarded as feature-impoverished SfM scenes. Our algorithm is also sufficiently flexible to incorporate high dimensional feature descriptors and works well on traditional SfM scenes with adequate numbers of unique corners. 2012-01-01T08:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/4855 info:doi/10.1007/s11263-011-0456-9 https://ink.library.smu.edu.sg/context/sis_research/article/5858/viewcontent/Simultaneous_camera_pose_and_correspondence_estimation_with_motion_coherence__PV.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Registration structure from motion Computer and Systems Architecture |
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Registration structure from motion Computer and Systems Architecture LIN, Wen-yan CHEONG, Loong-Fah TAN, Ping DONG, Guo LIU, Siying Simultaneous camera pose and correspondence estimation with motion coherence |
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Traditionally, the camera pose recovery problem has been formulated as one of estimating the optimal camera pose given a set of point correspondences. This critically depends on the accuracy of the point correspondences and would have problems in dealing with ambiguous features such as edge contours and high visual clutter. Joint estimation of camera pose and correspondence attempts to improve performance by explicitly acknowledging the chicken and egg nature of the pose and correspondence problem. However, such joint approaches for the two-view problem are still few and even then, they face problems when scenes contain largely edge cues with few corners, due to the fact that epipolar geometry only provides a “soft” point to line constraint. Viewed from the perspective of point set registration, the point matching process can be regarded as the registration of points while preserving their relative positions (i.e. preserving scene coherence). By demanding that the point set should be transformed coherently across views, this framework leverages on higher level perceptual information such as the shape of the contour. While thus potentially allowing registration of non-unique edge points, the registration framework in its traditional form is subject to substantial point localization error and is thus not suitable for estimating camera pose. In this paper, we introduce an algorithm which jointly estimates camera pose and correspondence within a point set registration framework based on motion coherence, with the camera pose helping to localize the edge registration, while the “ambiguous” edge information helps to guide camera pose computation. The algorithm can compute camera pose over large displacements and by utilizing the non-unique edge points can recover camera pose from what were previously regarded as feature-impoverished SfM scenes. Our algorithm is also sufficiently flexible to incorporate high dimensional feature descriptors and works well on traditional SfM scenes with adequate numbers of unique corners. |
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LIN, Wen-yan CHEONG, Loong-Fah TAN, Ping DONG, Guo LIU, Siying |
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LIN, Wen-yan CHEONG, Loong-Fah TAN, Ping DONG, Guo LIU, Siying |
author_sort |
LIN, Wen-yan |
title |
Simultaneous camera pose and correspondence estimation with motion coherence |
title_short |
Simultaneous camera pose and correspondence estimation with motion coherence |
title_full |
Simultaneous camera pose and correspondence estimation with motion coherence |
title_fullStr |
Simultaneous camera pose and correspondence estimation with motion coherence |
title_full_unstemmed |
Simultaneous camera pose and correspondence estimation with motion coherence |
title_sort |
simultaneous camera pose and correspondence estimation with motion coherence |
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Institutional Knowledge at Singapore Management University |
publishDate |
2012 |
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https://ink.library.smu.edu.sg/sis_research/4855 https://ink.library.smu.edu.sg/context/sis_research/article/5858/viewcontent/Simultaneous_camera_pose_and_correspondence_estimation_with_motion_coherence__PV.pdf |
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