NDLI: An intra-frame rate control algorithm for ultra low delay H.264/AVC coding

Content Provider	IEEE Xplore Digital Library
Author	Yun-Gu Lee Byung Cheol Song
Copyright Year	2008
Description	Author affiliation: Digital Media R&D Center, Samsung Electron. Co., Ltd., Seoul (Yun-Gu Lee; Byung Cheol Song)
Abstract	In this paper, we present an intra-fame rate control algorithm for ultra low delay H.264/AVC coding. In real time video coding, all the macro-blocks within a current frame may be unavailable before encoding them. Hence the proposed scheme predicts relative complexity of the current block from complexity of available macro-blocks within previous and current frames. Then, the algorithm allocates bits to each macro-block considering the relative complexity between the macro-block and the current frame. Quantization parameter of each macro-block is obtained by comparing the generated and allocated bits and is refined for improving coding performance. The required buffer size is only around one-third of average bits required for encoding a single frame. Simulation results show that the proposed algorithm can prevent the buffer from overflow and underflow while it provides better coding performance.
Starting Page	1041
Ending Page	1044
File Size	103233
Page Count	4
File Format	PDF
ISBN	9781424414833
ISSN	15206149
DOI	10.1109/ICASSP.2008.4517791
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic voltage control Video coding Decoding Buffer overflow Added delay Layout Research and development Quantization Video sequences MPEG 4 Standard low delay rate control buffer overflow buffer underflow
Content Type	Text
Resource Type	Article

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