Patent ID: 8502916

Claim:
A video signal processing method, comprising: generating video having a second screen size from an input video having a first screen size through wavelet/bicubic interpolation; and applying a parallel Projection Onto Convex Sets (POCS) method to the generated video having the second screen size, wherein the video having the second screen size, generated through the wavelet/bicubic video interpolation, is used as an initial value for the POCS method, and a motion component, estimated based on a current image of the video having the first screen size and a previous image of an expanded video having the second screen size obtained through the application of the POCS method, is used as a correction value for the POCS method, and wherein the parallel POCS method is performed based on the following equation x k + 1 = P n ⁢ P n - 1 ⁡ ( 1 n - 2 ⁢ ∑ i = 1 n - 2 ⁢ P i ) ⁢ x k , where x is video data, Pn, Pn−1, and Pi (i=1, . . . , n−2) are three types of different projection operations, and Pi (i=1, . . . , n−2) is processed in parallel.