Patent ID: 7129988
Filing Date: 2006-10-31
Classification: H04N

Abstract:
1. A method to de-interlace interlaced video data that comprises odd and even numbered lines of image data defining respective first and second image fields and said interlaced video data includes a luma channel and first and second chroma channels of data, the method comprising the following steps: (a) examining at least three pixels values on each line of an adjacent pair of even and odd numbered lines of image data; (b) generating a median value of the examined pixel values including sorting-by-value each of said pixel values and averaging said pixel values sorted-by-value to obtain said median value, and (i) said sorting-by-value each of said pixel values is carried out on pixel values representing luma channel data, and (ii) said averaging pixel values is carried out on pixel values representing said luma channel data, and said first and second chroma channels of data: (c) defining a pixel value having said median value determined at step (b) for use on a line intermediate the two lines of image data used at step (a); and (d) down-sampling and multiplexing said first and second chroma channels of data onto a single channel before using said data.