Abstract Despite the long history of studies on weak-perspective projection and the intuitive notion that this model has better numerical stability compared to the perspective model under appropriate conditions, there lacks a deep understanding about the error characteristics of motion and depth recovery process under this model. In this paper, we present the differential approach to SFM under weak-perspective projection. Based on this approach, error behavior which governs the formation of motion ambiguities under weak-perspective is investigated. Recovery of depth information and its distortion are also discussed. Regions where ordinal depth can be extracted is shown to be following a simple relationship under all types of motion, a different result compared to the case of perspective projection.
Error Analysis of SFM Under Weak-Perspective Projection
Computer Vision – ACCV 2006 ; 7 ; 862-871
Lecture Notes in Computer Science ; 3852 , 7
2006-01-01
10 pages
Article/Chapter (Book)
Electronic Resource
English
Relative Depth , Perspective Projection , Perspective Model , Structure From Motion , Orthographic Projection Computer Science , Image Processing and Computer Vision , Computer Imaging, Vision, Pattern Recognition and Graphics , Pattern Recognition , Artificial Intelligence (incl. Robotics) , Algorithm Analysis and Problem Complexity
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