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CONICS-BASED STEREO, MOTION ESTIMATION, AND POSE DETERMINATION
SONG, DM
Source PublicationINTERNATIONAL JOURNAL OF COMPUTER VISION
1993-02-01
Volume10Issue:1Pages:7-25
SubtypeArticle
AbstractStereo vision, motion and structure parameter estimation, and pose determination are three important problems in 3-D computer vision. The first step in all of these problems is to choose and to extract primitives and their features in images. In most of the previous work, people usually use edge points or straight line segments as primitives and their local properties as features. Few methods have been presented in the literature using more compact primitives and their global features. This article presents an approach using conics as primitives. For stereo vision, a closed-form solution is provided for both establishing the correspondence of conics in images and the reconstruction of conics in space. With this method, the correspondence is uniquely determined and the reconstruction is global. It is shown that the method can be extended for higher degree (degree greater-than-or-equal-to 3) planar curves. For motion and structure parameter estimation, it is shown that, in general, two sequential images of at least three conics are needed in order to determine the camera motion. A complicated nonlinear system must be solved in this case. In particular, if we are given two images of a pair of coplanar conics, a closed-form solution of camera motion is presented. In a CAD-based vision system, the object models are available, and this makes it possible to recognize 3-D objects and to determine their poses from a single image. For pose determination, it is shown that if there exist two conics on the surface of an object, the object's pose can be determined by an efficient one-dimensional search. In particular, if two conics are coplanar, a closed-form solution of the object's pose is presented.
WOS HeadingsScience & Technology ; Technology
WOS KeywordRIGID PLANAR PATCH ; LINE CORRESPONDENCES ; 3-D OBJECTS ; PARAMETERS ; ALGORITHM ; VISION ; REPRESENTATIONS ; UNIQUENESS ; SURFACES ; CURVES
Indexed BySCI
Language英语
WOS Research AreaComputer Science
WOS SubjectComputer Science, Artificial Intelligence
WOS IDWOS:A1993LP38400001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/21880
Collection09年以前成果
AffiliationCHINESE ACAD SCI,INST AUTOMAT,NATL PATTERN RECOGNIT LAB,BEIJING 100080,PEOPLES R CHINA
Recommended Citation
GB/T 7714
SONG, DM. CONICS-BASED STEREO, MOTION ESTIMATION, AND POSE DETERMINATION[J]. INTERNATIONAL JOURNAL OF COMPUTER VISION,1993,10(1):7-25.
APA SONG, DM.(1993).CONICS-BASED STEREO, MOTION ESTIMATION, AND POSE DETERMINATION.INTERNATIONAL JOURNAL OF COMPUTER VISION,10(1),7-25.
MLA SONG, DM."CONICS-BASED STEREO, MOTION ESTIMATION, AND POSE DETERMINATION".INTERNATIONAL JOURNAL OF COMPUTER VISION 10.1(1993):7-25.
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