Rate Control Scheme Based on Scene Change Detection 

Using Energy Flow Information

Zhang Zhong-wei; Liu Gui-zhong; Li Hong-liang; Li Yong-li

Volume 27 Issue 12

Dec. 2005

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Article Navigation > Journal of Electronics & Information Technology > 2005 > 27(12): 1964-1968

Zhang Zhong-wei, Liu Gui-zhong, Li Hong-liang, Li Yong-li. Rate Control Scheme Based on Scene Change Detection Using Energy Flow Information[J]. Journal of Electronics & Information Technology, 2005, 27(12): 1964-1968.

Citation:

Zhang Zhong-wei, Liu Gui-zhong, Li Hong-liang, Li Yong-li. Rate Control Scheme Based on Scene Change Detection Using Energy Flow Information[J]. Journal of Electronics & Information Technology, 2005, 27(12): 1964-1968.

Citation:

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Rate Control Scheme Based on Scene Change Detection Using Energy Flow Information

Received Date: 2004-05-17
Rev Recd Date: 2005-05-08
Publish Date: 2005-12-19

Abstract

Abstract

Firstly, a method is introduced to estimate motion vectors between two pictures with energy flow information. Secondly, these motion vectors are applied to detect the scene change. Finally, from analyzing MPEG-4 Q2 rate-control algorithm with the situation of scene changes, an improved rate-control algorithm is proposed where the scene change is taken into account. In the improved algorithm, the target bit budget from MPEG-4 Q2 is modified when scene change occurs. Experimental results show that the proposed scheme can improve the picture quality at or after scene change without buffer overflow.

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References

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