| 摘要 |
A system and method for filtering interlaced video in the DCT domain. The invention implements an even length symmetric filter necessary for filtering the bottom field of pixel data using the steps of: decomposing the even symmetric spatial filter design into two identical odd length symmetric filter designs have a one pixel phase difference therebetween; creating a discrete cosine transform (DCT) filter that corresponds to the odd length symmetric filter designs; filtering the field of interlaced video data in the DCT domain using DCT filter to create a set of filtered DCT data; converting the set of filtered DCT data into a set of spatial domain data; and filtering the spatial domain data with a [1,1] filter. |
