| JCTVC-B081 [K. Sato (Sony)] Proposals for improved MV coding
Motion vector competition scheme was proposed in VCEG-AC06 and has been implemented into the KTA software. Most responses to the HEVC CfP employ this scheme.
For further improvement this contribution proposed a dynamic code number assignment for motion vector predictors. The proposed method reportedly also improves subjective quality between the moving object and still background in fixed-camera-view sequences.
Test results are needed – but are not yet available.
Question: Within a given test sequence, how often would the selection change?
Question: Benefit of set order selection that is at sequence level in JCTVC-A124 to be moved to slice/picture level.
JCTVC-B094 [F. Bossen, P. Kosse (DOCOMO USA Labs)] Simplified motion vector coding method
A method for coding motion vector data was presented. It was based on the method previously proposed in document JCTVC-A114. It reportedly achieves coding efficiency similar to the methods included in the TMuC software while providing reduced complexity by simplification of the parsing of motion vector data and reducing the number of motion vector predictors.
It seems like there is an opportunity for complexity reduction and for elimination of duplicate functionality.
JCTVC-B108 [E. Maani, W. Liu, A. Tabatabai (Sony)] Multi-parameter motion (MPM)
In this document, a motion compensation that uses of multiple prediction blocks was proposed – similar in concept to Flierl/Wiegand/Girod multi-hypothesis.
Have only tested with two MVs – pointing to same reference picture.
Similar comment to others: should compare to B, not P.
JCTVC-B101 [G. Clare, J. Jung, S. Pateux (Orange Labs)] Preliminary results on motion vector prediction
Was presented Thursday a.m. as evaluation of TMuC behavior.
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