Combining region-based differential and matching algorithms to obtain accurate motion vectors for moving object in a video sequence

Chich Ling Huang, Yuh Ren Choo, Pau Choo Chung

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

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.

原文English
主出版物標題Proceedings - 22nd International Conference on Distributed Computing Systems Workshops, ICDCSW 2002
編輯Roland Wagner
發行者Institute of Electrical and Electronics Engineers Inc.
頁面202-207
頁數6
ISBN(電子)0769515886
DOIs
出版狀態Published - 2002 1月 1
事件22nd International Conference on Distributed Computing Systems Workshops, ICDCSW 2002 - Vienna, Austria
持續時間: 2002 7月 22002 7月 5

出版系列

名字Proceedings - International Conference on Distributed Computing Systems
2002-January

Other

Other22nd International Conference on Distributed Computing Systems Workshops, ICDCSW 2002
國家/地區Austria
城市Vienna
期間02-07-0202-07-05

All Science Journal Classification (ASJC) codes

  • 電腦網路與通信
  • 硬體和架構
  • 軟體

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