Patent ID: 7889792
Filing Date: 2011-02-15
Classification: H04N

Abstract:
1. A method of assigning frame types for coding of pictures in a video sequence, comprising: computing, via a video coding system, motion vectors for each of a first plurality of pictures following a reference picture, wherein each of the first plurality of pictures and the reference picture are part of the video sequence, and the first plurality of pictures consists of a first picture temporally closest to the reference picture, temporally followed immediately by a second plurality of pictures, determining, via the video coding system, a motion speed for each picture of the first plurality of pictures in temporal order based on the computed motion vectors for each respective picture, comparing, via the video coding system, the motion speed of the first picture to the motion speeds of the second plurality of pictures, and assigning the pictures in the second plurality of pictures exhibiting motion speed consistent with the first picture as B pictures, via the coding system.