Block-Matched Based Scalable Video Coding

In this paper, the motion estimation technique used in video compression is extended to intra-frame coding of scalable video coding, for which we called it the block-matching based image compression. Using a small amount of sampled data in the spatial domain, an approximate image of the original image is reconstructed. Then each block of the original image is obtained by searching the approximate image. The best match is selected with the minimal prediction error. This gives motion vector and the residual coefficients are obtained. Finally the sampled data, residual coefficients and block position are coded as the output bit-stream. Experimental work has been done based on H.264 to show the validity of proposed algorithm.