NDLI: Transmission of Post-Filter Hints for Video Coding Schemes

Content Provider	IEEE Xplore Digital Library
Author	Wittmann, S. Wedi, T.
Copyright Year	2007
Description	Author affiliation: Panasonic R&D Center Germany GmbH, Langen (Wittmann, S.; Wedi, T.)
Abstract	In the field of video coding, it is common to apply post-filtering in order to enhance the quality of a decoded video signal. An optimal post-filter can be designed by minimizing the error between the original signal and the decoded filtered signal. This approach requires information about the statistics of the decoded image and the original signal, which is available on encoder-side only. In order to provide this necessary information to a post-filter on the decoder-side, this paper presents a technique to transmit so-called post-filter hints in the bit-stream of a video coding scheme. In H.264/AVC, mean picture quality improvements of 0.4 dB are achieved with this technique compared to H.264/AVC without post-filtering. This corresponds to a mean bit-rate reduction of 8.5% at same picture quality. The mean improvements are calculated as an average over all sequences and bit-rates that are specified in the common test conditions of JVT for professional applications as well as over additional HD sequences.
File Size	179225
File Format	PDF
ISBN	9781424414369
ISSN	15224880
DOI	10.1109/ICIP.2007.4378896
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video coding Wiener filter Decoding Quantization Automatic voltage control Signal design Additive noise Signal processing Autocorrelation Distortion H.264/AVC post-filter video coding
Content Type	Text
Resource Type	Article

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