Method and system for enhanced resolution in upconverted video using improved interpolation

摘要

Standard definition video can be upconverted to high-definition video without degrading the appearance of edges, lines and other visual transitions in the image with a diagonal geometry. Each horizontal scan line of the video is monitored to identify the location of such visual transitions. The transitions are then matched in successive scan lines. Successive scan lines are then morphed, e.g., shifted forward or backward to move the transition in each line toward an average position for the transition as located in the two successive scan lines. The successive morphed lines are then added to produce a single interpolated line that is interlaced between its parent lines in a resulting high-definition video signal.