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

NCU Institutional Repository > 資訊電機學院 > 電機工程研究所 > 期刊論文 > Item 987654321/29262

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题名:	A scalable video compression technique based on wavelet transform and MPEG coding
作者:	Chang,PC;Lu,TT
贡献者:	電機工程研究所
关键词:	DECOMPOSITION;REPRESENTATION
日期:	1999
上传时间:	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
显示于类别:	[電機工程研究所] 期刊論文

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