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Reduction of ringing noise in transform image coding using simple adaptive filter

Reduction of ringing noise in transform image coding using simple adaptive filter

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© IEE
Published

A numerically simple filter for reducing ringing noise in transform coded images is proposed. The filter adapts to the local image characteristics and has been specifically designed to amend the current deblocking filter in H.263. It is shown that by adding the proposed filter both subjective and objective image quality improve.

Inspec keywords: telecommunication standards; video coding; block codes; adaptive filters; transform coding

Other keywords: ringing noise; objective image quality; adaptive filter; transform image coding; subjective image quality; local image characteristics; current deblocking filter

Subjects: Video signal processing; Filtering methods in signal processing; Signal processing theory; Image and video coding; Codes

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