METHOD OF CONSTRAIN DISPARITY VECTOR DERIVATION IN 3D VIDEO CODING

摘要

A method for three-dimensional video encoding or decoding are disclosed. In one embodiment, the method constrains the disparity vector (DV) to generate a constrained DV, wherein horizontal, vertical, or both components of the constrained DV is constrained to be zero or within a range from M to N units of DV precision, and M and N are integers. In another embodiment, a derived DV for DV based motion-compensated-prediction is determined from a constrained neighboring block set of the current block. In yet another embodiment, a derived disparity vector is derived to replace an inter-view Merge candidate if the inter-view Merge candidate of the current block is not available or not valid. In yet another embodiment, a DV difference (DVD) or a motion vector difference (MVD) for the current block is determined according to a DV and the DVD/MVP is constrained to be zero or within a range.

主权项

1. A method for three-dimensional video encoding or decoding, the method comprising:
receiving first data associated with a current block of a current frame corresponding to a current view; determining a first disparity vector for the current block; constraining the first disparity vector to generate a constrained disparity vector, wherein horizontal component, vertical component, or both the horizontal and vertical components of the constrained disparity vector is constrained to be zero or within a range from M to N units of disparity vector (DV) precision, and M and N are integers; and applying inter-view predictive encoding or decoding to the first data based on the constrained disparity vector.