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http://hdl.handle.net/10397/1531
Title: | Improving MPEG-4 coding performance by jointly optimising compression and blocking effect elimination | Authors: | Cheung, WF Chan, YH |
Issue Date: | Jun-2001 | Source: | IEE proceedings. Vision, image and signal processing, June 2001, v. 148, no. 3, p. 194-201 | Abstract: | In most current block-based image/video coding systems the compression stage and the deblocking stage operate separately and hence they cannot make use of each other to optimise the overall coding performance. It is suggested that the basic structure of the encoding systems should be modified such that the deblocking to be performed can be taken into account in the compression and the two processes can be jointly optimised. An example is also provided to show how this idea works successfully in a MPEG-4 codec to boost the rate-distortion performance when the suggested deblocking filter is exploited in the post-processing stage. The modification does not change the bit-stream format of the codec and hence is fully compatible with the original standard. | Keywords: | MPEG-4 coding performance Blocking effect elimination Compression optimisation Block-based image/video coding systems Deblocking stage Compression stage Joint optimisation Rate-distortion performance MPEG-4 codec Deblocking filter Post-processing stage Bit-stream format DCT |
Publisher: | The Institution of Engineering and Technology | Journal: | IEE proceedings. Vision, image, and signal processing | ISSN: | 1350-245X | EISSN: | 1359-7108 | DOI: | 10.1049/ip-vis:20010310 | Rights: | © IEE, 2001. This paper is a postprint of a paper submitted to and accepted for publication in IEE Proceedings-Vision, Image and Signal Processing and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library. |
Appears in Collections: | Journal/Magazine Article |
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c_ieep01.pdf | Pre-published version | 317.8 kB | Adobe PDF | View/Open |
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