Inter-Palette Coding in Screen Content Coding
| Autor: | Yu-Wen Huang, Jicheng An, Shaw-Min Lei, Yu-Chen Sun, Han Huang, Kai Zhang, Weijia Zhu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Motion compensation
Computer science business.industry Tunstall coding ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Variable-length code 020206 networking & telecommunications Pattern recognition 02 engineering and technology Coding tree unit Computer graphics (images) 0202 electrical engineering electronic engineering information engineering Media Technology 020201 artificial intelligence & image processing Artificial intelligence Electrical and Electronic Engineering Modified Huffman coding business Context-adaptive binary arithmetic coding ComputingMethodologies_COMPUTERGRAPHICS Coding (social sciences) Context-adaptive variable-length coding |
| Zdroj: | IEEE Transactions on Broadcasting. 63:673-679 |
| ISSN: | 1557-9611 0018-9316 |
| DOI: | 10.1109/tbc.2017.2711144 |
| Popis: | The joint collaborative team on video coding has been developing an emerging standard for screen content coding (SCC) as an extension of HEVC known as HEVC-SCC. Intrablock copy (IBC) and palette coding are the two powerful coding tools adopted into HEVC-SCC. In this paper, a novel coding tool named inter-palette coding is proposed, which takes the advantages of both IBC and palette coding. With the inter-palette method, a new palette copy mode COPY_INTER can be applied, which enables the index samples to copy the pixels in the prediction block fetched by IBC or motion compensation. Experimental results show that the proposed scheme can achieve 3.15% BD-rate savings under all intra conditions on typical sequences containing “text and graphics with motion” averagely, with almost no complexity penalty. |
| Databáze: | OpenAIRE |
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