A general aperture problem for direct estimation of 3-D motion parameters
- 1 May 1989
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 11 (5) , 528-536
- https://doi.org/10.1109/34.24785
Abstract
The necessary and sufficient conditions that an object should satisfy so that motion can be uniquely determined by a direct method are discussed. This direct method, based on the temporal-spatial gradient scheme, can estimate the three-dimensional (3-) motion parameters of a rigid moving object from an image sequence, by utilizing depth information of the object. It is shown that the 3-D motion cannot be uniquely determined for only eight kinds of objects with special geometric structure and surface pattern.Keywords
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