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A novel homography-based search algorithm for block motion estimation in video coding

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4 Author(s)
Zhaopeng Cui ; ISN National Key Lab, School of Telecommunication Engineering, Xidian University, Xi''an, China ; Guang Jiang ; Dujuan Wang ; Chengke Wu

There lies a geometric relationship (homography) between two frames in the video sequences captured by pan-tilt (PT) cameras due to their constrained movement, and the geometric relationship is valuable for reducing the spatial redundancy in video coding. In this paper, we propose a novel homography-based search (HBS) algorithm for block motion estimation in coding the sequences captured by PT cameras, which well utilizes the homography between two frames. In addition, adaptive thresholds are adopted in our method to classify different kinds of blocks. Compared with other traditional fast algorithms, the proposed HBS algorithm is proved more efficient for the sequences captured by PT cameras.

Published in:
Multimedia and Expo (ICME), 2011 IEEE International Conference on

Date of Conference: 11-15 July 2011

Page(s):
1 - 6
ISSN :
1945-7871
E-ISBN :
978-1-61284-349-0
Print ISBN:
978-1-61284-348-3
Conference Location :
Barcelona, Spain
Digital Object Identifier :
10.1109/ICME.2011.6011886
Product Type:
Conference Publications

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