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39th Meeting: Daejeon, KR, March 2025 2025-03-20 21:28
EE2-3.6: MV refinement for TMVP
Abstract
This contribution reports the experiment results of EE2-3.6. It proposes to apply MV refinement for TMVP. The MV refinement is performed for a reference picture using collocated block as a template and the scaled to the reference picture collocated MV as a starting point, wherein, the scaling factor is (reference picture POC – collocated picture POC) / (collocated reference picture POC – collocated picture POC). A refined MV is determined by checking SATD cost between a reference template in the reference picture and the collocated block in the collocated picture. The refined MV which has the minimum SATD cost is scaled to derive TMVP MV for the current block, wherein, the scaling factor is (reference picture POC – current picture POC) / (reference picture POC – collocated picture POC). When a TMVP candidate has two MVs, it derives each refined MV independently. The proposed method was implemented on top of ECM-16.1 and the test results are summarized as follows.
JVET-AL0214 EE2-3.6: MV refinement for TMVP [Z. Zhang, J.-L. Lin, Y. Zhang, H. Huang, V. Seregin, M. Karczewicz (Qualcomm)]
Decisions
JVET-AL0214 EE2-3.6: MV refinement for TMVP [Z. Zhang, J.-L. Lin, Y. Zhang, H. Huang, V. Seregin, M. Karczewicz (Qualcomm)]
Citation