Adaptive multiple-input constrained pel-recursive displacement estimation
- 1 January 1992
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 3 (15206149) , 245-248 vol.3
- https://doi.org/10.1109/icassp.1992.226205
Abstract
An adaptive multiple-input pel-recursive algorithm is presented. The displacement vector field (DVF) is estimated by minimizing the linearized displaced frame difference (DFD) using nu submasks of causal mask around the working point. Then, nu corresponding systems of equations are formed and the set theoretic regularization approach results in a weighted constrained least-squares estimation of the DVF by using information about the variance of the linearization error (noise) and the solution. The prior information about the solution is incorporated into the algorithm using a causal oriented smoothness constraint (OSC), which also provides a spatial prediction model for the estimated DVF. The improved performance of the proposed algorithm with respect to accuracy, robustness to occlusion, and smoothness of the estimated DVF is demonstrated.Keywords
This publication has 11 references indexed in Scilit:
- A model-based pel-recursive motion estimation algorithmPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Adaptive image sequence noise filtering methodsPublished by SPIE-Intl Soc Optical Eng ,1991
- Motion-compensated priority discrete cosine transform coding of image sequencesPublished by SPIE-Intl Soc Optical Eng ,1991
- Adaptive algorithms for pel-recursive displacement estimationPublished by SPIE-Intl Soc Optical Eng ,1990
- Ill-posed problems in early visionProceedings of the IEEE, 1988
- A pel-recursive Wiener-based displacement estimation algorithmSignal Processing, 1987
- An Investigation of Smoothness Constraints for the Estimation of Displacement Vector Fields from Image SequencesIEEE Transactions on Pattern Analysis and Machine Intelligence, 1986
- Advances in picture codingProceedings of the IEEE, 1985
- Noise Reduction in Image Sequences Using Motion-Compensated Temporal FilteringIEEE Transactions on Communications, 1984
- Motion-Compensated Coding: Some New ResultsBell System Technical Journal, 1980