Image processing based on integral lifting scheme and its implementation by DSP

Based on the parallel feature of Digital Signal Processor(DSP),the parallel architecture of 2-D integral lifting scheme was presented to perform simultaneously data transfer and wavelet transform with the strategy of ping-pong buffer.The column transform method based on line transform permits column transform in a few line transform results only;multiplication operations are substituted by shift operations to enhance the transform speed.The whole architecture is optimized in the pipelined design way to achieve higher hardware utilization and decrease the intermediate data quantity.The transform speed of optimized algorithm is 85 frame per second and 15 times faster than original algorithm's.The Peek Signal-to-noise Ratio(PSNR) of optimized algorithm is lower than original algorithm's,but it is over 42 dB,thereby optimized algorithm has high application value.