Patent ID: 7292635

Claim:
An interframe wavelet video coding method comprising: receiving a group-of-frames and decomposing the group-of-frames into first difference frames and first average frames between the frames in a first forward temporal direction and a first backward temporal direction; wavelet-decomposing the first difference frames and the first average frames; and quantizing coefficients resulting from the wavelet-decomposition to generate a bitstream, wherein the decomposing the group-of-frames into the first difference and average frames comprises: (a) decomposing the group-of frames into a first difference frame and a first average frame between two frames in the first forward temporal direction; and (b) decomposing the group-of-frames into another first difference frame and another first average frame between other two frames in the first backward temporal direction, and wherein the decomposing the group-of-frames into the first difference and average frames further comprises decomposing the first average frames into a second difference frame and a second average frame between two first average frames in either of a second forward temporal direction and a second backward temporal directions.