A novel morpho codec for medical video compression

In this paper, a Novel Video Codec called L Shaped Morpho Codec (LSMC) based on Lifting Wavelet Transform (LWT) is proposed. Each frame in the Video sequence is first decomposed into different sub-bands using LWT at maximum decomposition level. The proposed LSMC keeps track of significant pixels of sub-band in the scan order of left to right and top to bottom. If the pixel is found significant, then the Morphological dilation is applied immediately to find the significant pixels using L shaped structuring element. This will improve the Rate-Distortion performance for Lossy Compression. Experimental results show that the proposed LSMC outperforms standard codec´s such as Set Partitioning in Hierarchical Trees (SPIHT) and Set Partitioned Embedded bloCK coder (SPECK) for Lossy and Lossless Compression. For Lossy compression, LSMC performs well at higher bit rates than the lower bitrates. The average bits per pixel (bpp) required for Lossless Compression by LSMC is less over SPECK.