6.1.8Precision analysis for high bit depth (2)
(Reviewed Thu 24th evening GJS)
JCTVC-O0068 AHG5 and AHG18: Transform Matrix Precision for High Bit Depths [K. Sharman, N. Saunders, J. Gamei (Sony)]
(Information contribution.)
This contribution examines a number of options regarding the precision of the transform matrices when used for coding high-bit-depth video. The recommended option is to use a 14-bit set of forward transform matrices together with the pre-existing 6-bit inverse transform matrices. It is stated that, this being an encoder-only option, no normative change is required.
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