Method of Motion Information Coding

摘要

A method and apparatus for motion information coding using a refined Merge mode are disclosed. Embodiments of the present invention not only uses the Merge index to indicate the selected Merge candidate, but also refines partial motion information of the selected Merge candidate. An encoder according to the present invention derives a Merge candidate set based on the motion information associated with neighboring blocks. The encoder selects a target Merge candidate from the Merge candidate set and signal a Merge index corresponding to the target Merge candidate. The encoder then predicts a part of the current motion information based on partial motion information associated with the target Merge candidate to generate coded motion information. The process for a decoder incorporating the refined Merge mode is also disclosed.

主权项

1. A method for motion information decoding using coding modes including Merge mode, the method comprising:
receiving a bitstream including coded data for a current block and one or more neighboring blocks of the current block; determining second motion information associated with said one or more neighboring blocks of the current block; deriving a Merge candidate set consisting of one or more Merge candidates based on the second motion information associated with said one or more neighboring blocks; determining a target Merge candidate from the Merge candidate set based on a Merge index signaled in the bitstream; determining a first part of current motion information based on coded motion information signaled in the bitstream, wherein the coded motion information is generated by predicting the first part of the current motion information based on partial second motion information associated with the target Merge candidate; and providing decoded current motion information including the first part.