SCALABLE RESOLUTION ENHANCEMENT OF A VIDEO IMAGE

摘要

A system and method for enhancing resolution in a video image includes acquiring (102) a relatively low resolution video signal (2) and applying (104) a peaking function and analyzing the peaked signal to identify (106) potential edges. The low resolution signal (2) is then upconverted (108) to a higher resolution format. Actual edges in the image are detected (110) and linked (112) in the higher resolution format, and a luminance transition improvement function is applied (114) to the edges to sharpen the image. Analysis of the image while at low resolution reduces computation time, yet still produces a high quality output image.