Apparatus and Method for Interframe Wavelet Coding for Adjustability of Computing Complexity

摘要

1. TECHNICAL FIELD OF THE INVENTION;The present invention relates to an interframe wavelet coding apparatus and a method thereof.;2. Technical problem to be solved by the invention;The present invention provides an interframe wavelet coding apparatus and method for reducing computational complexity of a decoding apparatus by controlling a split level and a filter coefficient according to a frame information amount during wavelet transformation.;3. Summary of Solution to Invention;An MCTF unit for filtering the input GOP image on the time axis, a wavelet transform unit for spatial wavelet transforming the filtered frame, a quantizer for quantizing wavelet coefficients output from the wavelet transform unit, a motion vector calculated by the MCTF unit, and the And an entropy coding unit for entropy coding the wavelet coefficients quantized by the quantization unit and a wavelet filter manager for selecting a segmentation level and a filter length of the wavelet transform unit based on the motion prediction information of the GOP image calculated by the MCTF unit.;4. Important uses of the present invention;Used for video coding and decoding.;Wavelet Transform, MCTF, Quantization, Entropy Coding