True-Motion Estimation and Compensation with Multitemporal Block-Matching Search
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10.5120/19501-0667 |
L Martins, Evandro L l Rodrigues and Maria Stela V Paiva. Article: True-Motion Estimation and Compensation with Multitemporal Block-Matching Search. International Journal of Computer Applications 111(1):16-21, February 2015. Full text available. BibTeX
@article{key:article,
author = {andre L. Martins and Evandro L.l. Rodrigues and Maria Stela V. Paiva},
title = {Article: True-Motion Estimation and Compensation with Multitemporal Block-Matching Search},
journal = {International Journal of Computer Applications},
year = {2015},
volume = {111},
number = {1},
pages = {16-21},
month = {February},
note = {Full text available}
}
Abstract
Improvements in de-interlacing algorithms are fundamental to explore image quality potential on modern TV screen technologies. This paper presents a true motion vector verification algorithm based on multi temporal block matching strategy, applied to video de-interlacing. During field scanning, a block of pixels is selected, then a block with the same reference coordinates is extracted but in the future field. A searching process runs in the previous field, looking for the most similar block; the best fit block and their coordinates are extracted from the previous field, and a new searching process is done but in the future field. If the searching process in the future field results back to the original block coordinates, the motion vector is validated; in other case, a correction over the motion vectors is done. Error calculation showed that the proposed algorithm presents image quality improvement, when compared to a classical motion compensation algorithm.
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