Patent Document ID: 8139641
Application ID: 12986254
Patent Status: 1

Claim One:
1. A method for video image decompression, the method including: providing a sequence of predicted and bi-directionally predicted frames each comprising pixel values arranged in picture areas, wherein at least one of the picture areas in at least one of the bi-directionally predicted frames is predicted from picture areas in one or more reference frames using direct mode prediction; determining, with at least one processor, a predicted motion vector with a frame-distance method, wherein the frame-distance method comprises: given (1) a predicted picture area in a first reference frame, (2) a bi-directionally predicted frame of the predicted picture area, and (3) at least one motion vector between the predicted picture area in the first reference frame and a co-locating picture area in a second reference frame, the predicted motion vector is linearly proportional to the at least one motion vector and a distance between the bi-directionally predicted frame of the predicted picture area and at least one of the first or second reference frames; and utilizing direct mode prediction, wherein both the first and second reference frames are in a display order that is prior to a display order of the bi-directionally predicted frame of the predicted picture area.