A New Change Detection Method Based on Macro Block Unit for Selective Video Coding 


Vol. 28,  No. 2, pp. 172-180, Feb.  2003


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  Abstract

This paper propose a new change detection algorithm based on macro block unit for selective video coding scheme. The conventional method badly decides a macro block of unchanged region into a changed macro block due to a noise of the difference images. To solve the problem of the conventional method, we propose a new test statistic which is robust to the noise of the difference image. As shown in experimental results(Fig. 1～3), the proposed algorithm shows more accurate segmentation results than the conventional method. Also, because the proposed detection method reduces the average numbers of changed macro block per frame to 55～60% than the conventional method, it can improve the performance of the selective video coding at lower bit rates.

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  Cite this article

[IEEE Style]

J. Choi, S. Kwon, J. Lee, "A New Change Detection Method Based on Macro Block Unit for Selective Video Coding," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 2, pp. 172-180, 2003. DOI: .

[ACM Style]

Jae-Gark Choi, Soon-Kak Kwon, and Jong-Keuk Lee. 2003. A New Change Detection Method Based on Macro Block Unit for Selective Video Coding. The Journal of Korean Institute of Communications and Information Sciences, 28, 2, (2003), 172-180. DOI: .

[KICS Style]

Jae-Gark Choi, Soon-Kak Kwon, Jong-Keuk Lee, "A New Change Detection Method Based on Macro Block Unit for Selective Video Coding," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 2, pp. 172-180, 2. 2003.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880