Intra Frame Wavelet Video Coding
Tim Morris, D. Britch · Research Explorer (The University of Manchester) · 2000
A software only wavelet based video codec has been designed and implemented. The codec takes a colour video sequence of arbitrary size as input and performs intra-frame compression on the sequence. Video sequences are transformed with a symmetrical wavelet transform, prior to quantisation and entropy encoding. A video codec quality analyser (CQA) is used to assess the subjective quality of the coded stream with respect to the uncoded one in order to provide a single quality measure that correlates with a subjective assessment of the data. Experiments using standard test sequences show that a higher compression ratio is achieved than obtainable using MJPEG, at the same quality level.