Abstract not available in document
JVET-C0102 Luma delta QP adjustment based on video statistical information [J. Kim, J. Lee, E. Alshina, Y. Park (Samsung)] [late]
This contribution is identical to JCTVC-W0039. The contribution is targeting performance improvement of high dynamic range video compression using existing HEVC tools. It was asserted that the performance can be improved by adjusting the luma QP based on video statistics. Depending on the average of the luma components in a picture and the luma block average and variance, the algorithm adjusts the delta QP for each CTU. The performance of the algorithm is measured with the same method of SuperAnchor v3.2 and reportedly shows consistently better compression performance.
One expert pointed out that with this method enabled, it might be even more difficult to use objective metrics.
Further study in an AHG on JEM coding of extended colour volume material was requested.