IMAGE DEINTERLACING SYSTEM FOR REMOVING MOTION ARTIFACTS AND ASSOCIATED METHODS

摘要

Deinterlacing is applied to a composite video image that includes alternating even and odd rows of pixels. The even rows form a first image; the odd rows, a second image; these are recorded at different times, introducing a possibility of motion artifact. A first average horizontal intensity difference is computed (105) between the first image and the second image. The first image is offset (106) by one pixel in each horizontal direction to form a horizontally offset image, and another average horizontal intensity difference is computed (107). A minimum average intensity difference is determined (110) from a comparison of the average horizontal intensity differences. The first image is shifted (113) in a horizontal direction determined to achieve the minimum average horizontal intensity difference, and the horizontally shifted first image is combined (114) with the second image to form an imiproved composite image. An analogous series of steps is carried out in a vertical direction.