Patent ID: 8199824
Filing Date: 2012-06-12
Classification: G06T,H04N

Abstract:
1. A method of performing, by an image signal data processor, spatial resolution conversion of an image signal, comprising: A. comparing, by the image signal data processor, a magnitude of a motion vector from the image signal to a threshold value; B. performing, by the image signal data processor, single channel interpolation on the image signal if the magnitude of the motion vector is greater than a threshold value; C. performing, by the image signal data processor, multi-channel interpolation on the image signal if the magnitude of the motion vector is not greater than the threshold value; performing, by the image signal data processor, the single channel interpolation on the image signal and not performing said steps A, B, and C when the image signal is for a frame that does not include any motion vector; performing, by the image signal data processor, said steps A, B, and C when the image signal is for a frame that includes a motion vector wherein the motion vector is determined for a current frame and at least one reference frame; determining, by the image signal data processor, a sub-pixel motion vector from the motion vector; and using, by the image signal data processor, the sub-pixel motion vector, the current frame, and said at least one reference frame for the multi-channel interpolation of the image signal.