Deblocking filters for block-based ICA transform coding

Deblocking is required when data rate of a video stream is low. Images taken from such video streams also contain blocking artifacts. Similarly, when the images are compressed by ICA (Independent Component Analysis) transform coding, the resultant decompressed images are blocky. This paper describes the outcome of applying deblocking filters on ICA decoded images by using two schemes namely, “deblocking filter for low bit rate MPEG-4 video” and “low complexity deblocking method for DCT coded video signals”, respectively. The experiment is conducted on three sets of images at different quantization parameter. According to the results, the deblocking filter of scheme1 provides better SNR ratio than that of scheme2.