Patent ID: 8098931
Filing Date: 2012-01-17
Classification: H04N

Abstract:
1. A method for adaptively selecting filters to interpolate video data, comprising: receiving the video data encoded by a 4:2:2 sampling format; adaptively selecting filters to convert the color components in the video data to a 4:4:4 sampling format based on differences of luminance and color components among a pixel P, a pixel P_ determining whether a difference between the color components of the pixels P if larger than the first threshold, determining whether a difference between the luminances of the pixels P and P if smaller than the second threshold, using a full left enhancing filter or a full right enhancing filter to convert the video data; if not smaller than the second threshold, using a center-to-left enhancing filter or a center-to-right enhancing filter to convert the video data; if not larger than the first threshold, determining whether a difference between the luminances of the pixels P and P_ if larger than the third threshold, determining whether a difference between a variation of the luminances among pixels P_ if larger than the forth threshold, using the center-to-left enhancing filter or the center-to-right enhancing filter to convert the video data; if not larger than the forth threshold, using a center-to-left loosing filter or a center-to-right loosing filter to convert the video data; and if not larger than the third threshold, using a central averaging filter to convert the video.