Patent ID: 8363727
Filing Date: 2013-01-29
Classification: H04N

Abstract:
1. A method, comprising: receiving a current frame from a digital video sequence; receiving a reference frame from the digital video sequence; selecting a candidate reference block having a zero motion vector from the reference frame for a block matching technique; determining a minimum distortion metric value based on one or more blocks of the current frame and the reference frame; selecting a search pattern for block matching based on the determined minimum distortion metric value, the selected search pattern comprising a spiral search pattern, a first gradient search pattern, or a second gradient search pattern; and generating, by a processor, a motion vector representing a change in position between a current block of the current frame and a matching reference block of the reference frame using the block matching technique arranged to perform block matching based on stationary and spatially proximate blocks, the block matching technique using the selected search pattern.