Pattern-based de-correlation for visual-lossless video compression for wireless display applications

O. Eerenberg, Y. Gao, E. Trauschke, P.H.N. With, de

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Abstract

The core of many video coding standards is formed by the Discrete Cosine Transform (DCT) for de-correlating spatial video data. When applied to symmetrical spatial data or patterns as found in graphical data, the DCT results in zerovalued sub-bands at predefined positions in the transform domain. The DCT de-correlation is further improved when scan paths are defined that omit the aforementioned zero-valued sub-bands. When deploying these predetermined scan paths on regular video, Human Visual System (HVS) based quantization is applied to force similar sub-bands to zero, such that the remaining energy matches a particular scan path. As a result, visual-lossless compression of video and graphics up to a factor four (2-4) with a PSNR of 40-45 dB is achieved, making this technique suitable for wireless display applications.
Original languageEnglish
Title of host publicationProceedings of the International Conference on Consumer Electronics (ICCE 2010), Digest of Technical Papers, 9-13 January, 2010, Las Vegas, Nevada
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages229-230
ISBN (Print)978-1-4244-4314-7
DOIs
Publication statusPublished - 2010

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