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

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題名:	A scalable video compression technique based on wavelet transform and MPEG coding
作者:	Chang,PC;Lu,TT
貢獻者:	電機工程研究所
關鍵詞:	DECOMPOSITION;REPRESENTATION
日期:	1999
上傳時間:	2010-06-29 20:20:19 (UTC+8)
出版者:	中央大學
摘要:	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.
關聯:	IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
顯示於類別:	[電機工程研究所] 期刊論文

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