Patent ID: 8477848
Filing Date: 2013-07-02
Classification: H04N

Abstract:
1. A method for interpolating an intermediate frame for converting a source video at a first rate to a target video at a second rate, the method comprising: high-pass filtering previous-frame data to yield a high-pass previous-frame representation, and high-pass filtering current-frame data to yield a high-pass current-frame representation; calculating a high-pass filter based motion vector from both the high-pass previous-frame representation and the high-pass current-frame representation; calculating a quality value for each of multiple candidate motion vectors, wherein the candidate motion vectors include the high-pass filter based motion vector and a second candidate motion vector, and wherein the second candidate motion vector is calculated from information other than the high-pass previous-frame representation and the high-pass current-frame representation; selecting a final motion vector from among the candidate motion vectors based on the quality values; and generating the intermediate frame based on the final motion vector.