Detecting 3-D motion field from range image sequences
| Autor: | Rajiv Mehrotra, C. Srinivasan, Krishnendu Chaudhury |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Motion analysis
Mathematical analysis Geometry Motion detection General Medicine Moment of inertia Computer Science Applications Human-Computer Interaction Constraint algorithm Motion field Control and Systems Engineering Motion estimation Vector field Electrical and Electronic Engineering Invariant (mathematics) Software Information Systems Mathematics |
| Zdroj: | IEEE Transactions on Systems, Man and Cybernetics, Part B (Cybernetics). 29:308-314 |
| ISSN: | 1083-4419 |
| DOI: | 10.1109/3477.752806 |
| Popis: | An algorithm for computing three-dimensional (3-D) velocity field and motion parameters from a range image sequence is presented. It is based on a new integral 3-D rigid motion invariant feature-the trace of a 3/spl times/3 "feature matrix" related to the moment of inertia tensor. This trace can be computed at every point of a moving surface and provides a quantitative measure of the local shape of the surface. Based on the feature's conservation along the trajectory of every moving point, a 3-D Flow Constraint Equation is formulated and solved for the velocity field. The robustness of the feature in presence of noise and discontinuity is analyzed. |
| Databáze: | OpenAIRE |
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