@inproceedings{b999ea7cb2764b2c9a094f09b3962d87,
title = "Combining region-based differential and matching algorithms to obtain accurate motion vectors for moving object in a video sequence",
abstract = "Motion estimation plays an important role in image processing, since temporal information has been regarded as a promising feature for both image segmentation and video coding. In this paper a hybrid approach is proposed to integrate a differential (gradient-based) optical flow approach and region-based matching approach to search for accurate object motion vectors. Our method adopts the Horn-Schunck optical flow constraint, in conjunction with several proposed techniques to convert the dense optical flow field to region-based motion field, and thereby suppress noise. The region-based matching approach is a modified version of the traditional block-matching algorithm, so that it can operate in region-based mode, and thereby enhance the visual effectiveness near the edges. Therefore, the proposed hybrid method has the tendency to obtain the estimation of {"}true{"} object motion inherited by the gradient-based approach, and also the superior visual effectiveness inherited by the block-matching approach.",
author = "Huang, {Chich Ling} and Choo, {Yuh Ren} and Chung, {Pau Choo}",
year = "2002",
month = jan,
day = "1",
doi = "10.1109/ICDCSW.2002.1030770",
language = "English",
series = "Proceedings - International Conference on Distributed Computing Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "202--207",
editor = "Roland Wagner",
booktitle = "Proceedings - 22nd International Conference on Distributed Computing Systems Workshops, ICDCSW 2002",
address = "United States",
note = "22nd International Conference on Distributed Computing Systems Workshops, ICDCSW 2002 ; Conference date: 02-07-2002 Through 05-07-2002",
}