NDLI: An inter-frame coding algorithm based on vector quantization

Content Provider	IEEE Xplore Digital Library
Author	Meihua Gu Lei Zhu Ningmei Yu Dongfang Wang
Copyright Year	2009
Description	Author affiliation: College of Electronic Information, Xi'an Polytechnic University, China (Meihua Gu; Lei Zhu) \|\| Department of Electronics Engineering, Xi'an University of Technology, China (Ningmei Yu; Dongfang Wang)
Abstract	A kind of low complexity inter-frame coding algorithm based on vector quantization (VQ) is presented in this paper. There are three inter encode modes according to the motion type of the image block. Not-encode mode is adopted by static block, residual mean coding mode is adopted by the smooth motion block, VQ and mean encode mode are adopted by general motion block. The motion type of the image block is determined by the moving threshold TH and smoothing threshold T. The size of each encode block is adjusted adaptively by the size of the static region or smoothing motion region. Simulations show that this algorithm can get great rate distortion performance, especially for the head shoulder sequences with large static and smoothing background. PSNR can be achieved at 35.63dB, while the compression rate can be achieved at 150.38, and bit rate with frame rate of 10fps is 50.69kbps. The quality and bit rate can meet the visual and bandwidth requirements in the application of video telephony communications.
Starting Page	150
Ending Page	154
File Size	144285
Page Count	5
File Format	PDF
ISBN	9781424447541
DOI	10.1109/ICICISYS.2009.5357728
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Smoothing methods PSNR Vector quantization Motion type Encode mode Encoding Image reconstruction Image coding Bit rate Video compression Telephony Smooth Static Pixel Threshold
Content Type	Text
Resource Type	Article

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