Adaptive colour-space selection in high efficiency video coding

Adaptive colour-space selection in high efficiency video coding. Strutz, T. & Leipnitz, A. In 2017 25th European Signal Processing Conference (EUSIPCO), pages 1534-1538, Aug, 2017.

Paper doi abstract bibtex

Recent developments in the standardisation of High Efficiency Video Coding (HEVC) have shown that the block-wise activation/deactivation of a colour transform can significantly improve the compression performance. This coding tool is based on a fixed colour space which is either YCgCo in lossy compression mode or YCgCo-R in the lossless mode. The proposed method shows that the performance can be increased even more when the colour space is not fixed but selected dependent on the image characteristic. Improvements of more than 2% can be achieved in lossless intra coding if the colour space is automatically chosen once for the entire image. In lossy intra compression, the performance can also be increased if a proper colour space is chosen.

@InProceedings{8081466,
  author = {T. Strutz and A. Leipnitz},
  booktitle = {2017 25th European Signal Processing Conference (EUSIPCO)},
  title = {Adaptive colour-space selection in high efficiency video coding},
  year = {2017},
  pages = {1534-1538},
  abstract = {Recent developments in the standardisation of High Efficiency Video Coding (HEVC) have shown that the block-wise activation/deactivation of a colour transform can significantly improve the compression performance. This coding tool is based on a fixed colour space which is either YCgCo in lossy compression mode or YCgCo-R in the lossless mode. The proposed method shows that the performance can be increased even more when the colour space is not fixed but selected dependent on the image characteristic. Improvements of more than 2% can be achieved in lossless intra coding if the colour space is automatically chosen once for the entire image. In lossy intra compression, the performance can also be increased if a proper colour space is chosen.},
  keywords = {data compression;image colour analysis;video coding;adaptive colour-space selection;high efficiency video coding;compression performance;coding tool;fixed colour space;lossy compression mode;lossless mode;lossless intra coding;lossy intra compression;block-wise activation-deactivation;colour transform;Image color analysis;Transforms;Image coding;Color;Tools;Standards;Europe},
  doi = {10.23919/EUSIPCO.2017.8081466},
  issn = {2076-1465},
  month = {Aug},
  url = {https://www.eurasip.org/proceedings/eusipco/eusipco2017/papers/1570346995.pdf},
}

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