NDLI: A scene-adaptive one-pass variable bit rate video coding method for storage media

Content Provider	IEEE Xplore Digital Library
Author	Yokoyama, Y. Ooi, Y.
Copyright Year	1999
Description	Author affiliation: C&C Media Res. Labs., NEC Corp., Kawasaki, Japan (Yokoyama, Y.)
Abstract	This paper proposes a one-pass VBR (Variable Bit Rate) video coding method that maintains the stability of its quantization scale by using a large size virtual buffer to smooth out the difference between a generated bit count and a target bit count. To improve video quality, the quantization scale is adjusted according to the coding complexity of scenes. Experimental results show that the standard deviations of quantization scale distributions are only 30/spl sim/40% of those produced by CBR (Constant Bit Rate) coding, where averaged quantization scale values are roughly the same as those of CBR. The worst quality periods defined as the duration that the quantization scale exceeds a certain level are reduced from 28.7% to 7.8% in total coding time at 4 Mbps coding. The method can be applied to real-time video recording applications.
Starting Page	827
Ending Page	831
File Size	405106
Page Count	5
File Format	PDF
ISBN	0780354672
DOI	10.1109/ICIP.1999.817243
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-24
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bit rate Video coding Quantization Layout Video recording Transform coding Fluctuations Buffer storage National electric code Video compression
Content Type	Text
Resource Type	Article

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