The block-based preprocessing system for the coding performance improvement

Inkyeom Kim, Yeonsik Jeong, Kyu Tae Park

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

In general, most images get to contain unwanted noise in the process of image acquisition and such noise may deteriorate the performance of standard coding systems. Therefore, by pre-reducing inborn noise in images, a coding performance can be improved significantly. In this paper, in order to improve coding performance of the standard codecs, a new preprocessing system using spatially adaptive filtering is proposed. In tin's approach, the preprocessing system is implemented through block region classification and adaptive morphological filtering. Experimental results show that the proposed algorithm obtains significant improvement for standard still and moving images as well as acquired noisy images, as compared with applying no preprocessing. The proposed system can be easily applied to the standard codecs such as JPEG, MPEG, etc and significantly improve the quality of decoded images without increasing bit-rate.

Original languageEnglish
Pages (from-to)1048-1053
Number of pages6
JournalIEEE Transactions on Consumer Electronics
Volume44
Issue number3
DOIs
StatePublished - 1998

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