Joint Framework for Motion Validity and Estimation Using Block Overlap
- 20 December 2012
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Image Processing
- Vol. 22 (4), 1610-1619
- https://doi.org/10.1109/tip.2012.2235452
Abstract
This paper presents a block-overlap-based validity metric for use as a measure of motion vector (MV) validity and to improve the quality of the motion field. In contrast to other validity metrics in the literature, the proposed metric is not sensitive to image features and does not require the use of neighboring MVs or manual thresholds. Using a hybrid de-interlacer, it is shown that the proposed metric outperforms other block-based validity metrics in the literature. To help regularize the ill-posed nature of motion estimation, the proposed validity metric is also used as a regularizer in an energy minimization framework to determine the optimal MV. Experimental results show that the proposed energy minimization framework outperforms several existing motion estimation methods in the literature in terms of MV and interpolation quality. For interpolation quality, our algorithm outperforms all other block-based methods as well as several complex optical flow methods. In addition, it is one of the fastest implementations at the time of this writing.Keywords
This publication has 16 references indexed in Scilit:
- Stereo Scene Flow for 3D Motion AnalysisPublished by Springer Science and Business Media LLC ,2011
- Smoothness Constraints in Recursive Search Motion Estimation for Picture Rate ConversionIEEE Transactions on Circuits and Systems for Video Technology, 2010
- Multiframe super resolution based on block motion vector processing and kernel constrained convex set projectionPublished by SPIE-Intl Soc Optical Eng ,2009
- Deinterlacing-an overviewProceedings of the IEEE, 1998
- A comparison of motion-compensated interlace-to-progressive conversion methodsSignal Processing: Image Communication, 1998
- Robust methods for high-quality stills from interlaced video in the presence of dominant motionIEEE Transactions on Circuits and Systems for Video Technology, 1997
- Coding algorithm with region-based motion compensationIEEE Transactions on Circuits and Systems for Video Technology, 1997
- Motion-compensated conversion from interlaced to progressive formatsSignal Processing: Image Communication, 1994
- True-motion estimation with 3-D recursive search block matchingIEEE Transactions on Circuits and Systems for Video Technology, 1993
- Textural Features Corresponding to Visual PerceptionIEEE Transactions on Systems, Man, and Cybernetics, 1978