7CE4: Interpolation filtering for MC (chroma) 7.1Summary
7.1.1.1.1.1.1.1.1JCTVC-D345 Summary of CE4: interpolation for MC (Chroma) [E. Alshina (Samsung)]
This contribution was a summary of CE4: interpolation for MC (Chroma). Ten companies had been registered in CE4 and nine proposed tools had been evaluated on the common condition with cross-verification for each.
An additional modified PSNR measure was used in the CE to try to assess a combined impact on the three color components as a result of the different chroma interpolation filter methods.
Some tabulated results are shown below. The table entries average together the results of two different filters in cases where a contribution has different filters for HE and LC. It was remarked that the 4-tap filters in JCTVC-D057 and JCTVC-D347 are extremely similar to each other (the same if tap values are rounded to 6 bits). The boldface row in the table is explained below.
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