A scalable video compression technique based on wavelet transform and MPEG coding

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Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/29262

Title:	A scalable video compression technique based on wavelet transform and MPEG coding
Authors:	Chang,PC;Lu,TT
Contributors:	電機工程研究所
Keywords:	DECOMPOSITION;REPRESENTATION
Date:	1999
Issue Date:	2010-06-29 20:20:19 (UTC+8)
Publisher:	中央大學
Abstract:	We present a scalable coding scheme based on discrete wavelet transform (DWT) and MPEG coding for video applications. It utilizes the hierarchical pyramid structure that provides multiple resolutions. DWT decomposes the image into several bands, In each band, a fixed-size motion compensated MPEG coder with custom-designed quantization tables and scanning direction is: employed. This scheme has the advantages of reusing the widely available MPEG hardware and software as well as relieving the limitation of the image size imposed by the MPEG hardware technology. The simulation results show that the DWT-MPEG coding method improves the image quality over ordinary MPEG coding by 0.3 similar to 1.5 dB.
Relation:	IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
Appears in Collections:	[Graduate Institute of Electrical Engineering] journal & Dissertation

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