Patent ID: 7782954

Claim:
A method for transforming video information using a computing device that implements a video encoder, the method comprising: with the computing device that implements the video encoder: scanning a 4×8 block of transform coefficients into a one-dimensional array according to a scan pattern, wherein the 4×8 block is 4 coefficients in a horizontal direction by 8 coefficients in a vertical direction, wherein the scan pattern is adapted for 4×8 inter-coded blocks of progressive video, the 4×8 inter-coded blocks being encoded without using AC prediction, wherein the scan pattern biases the horizontal direction for at least the lowest frequency AC coefficients in the horizontal and vertical directions, and wherein the scan pattern is: 0 1 3 13 2 4 8 17 5 6 11 24 7 10 15 26 9 14 20 28 12 19 23 29 16 21 25 30 18 22 27 31 ; and entropy coding the transform coefficients in the one-dimensional array.