Selective perceptual masking via scale separation in the spatial and temporal domains for use in data compression with motion compensation

3:

• The method of 1 including the further steps of:
• scale separating the video file to generate a detail scale-separated video and a level scale-separated video corresponding to the video;
• temporally blurring the detail scale-separated video to provide a filtered detail scale-separated video and spatially blurring the level scale-separated video to provide a filtered level scale-separated video;
• combining the filtered detailed scale-separated video and the filtered level scale-separated video to provide an output video;
• and
• outputting the output video for use in a data compression operation.

4:

• A computer program product, disposed on a non-transitory computer readable media, the product including computer executable process steps operable to control a computer to:
• provide a video file depicting frames of a video, in a computer memory,
• for a selected frame, estimate pixel motion relative to an adjacent frame of the video by building an image pyramid for each of the selected frame and the adjacent frame;
• perform a block motion estimation technique at each level of the pyramids, with performance at a fine level of the pyramids being executed as a function of a motion estimation at a coarser level of the pyramids by centering a search neighborhood at a location in the fine level as predicted by a motion estimate from the coarser level;
• and
• at a preselected number of levels in the pyramids, expand a number of search neighborhoods to multiple locations in the fine level as predicted by motion estimates at multiple pre-selected locations in the coarser level.

6:

• The computer program product of claim 4 including the additional process steps of:
• scale separating the video file to generate a detail scale-separated video and a level scale-separated video corresponding to the video;
• temporally blurring the detail scale-separated video to provide a filtered detail scale-separated video and spatially blurring the level scale-separated video to provide a filtered level scale-separated video;
• combining the filtered detailed scale-separated video and the filtered level scale-separated video to provide an output video;
• and
• outputting the output video for use in a data compression operation.