apparatus and method for adaptive variable block-size transform and the appartus and the method for video encoding/decoding thereof.

摘要

variable block conversion apparatus and method , and using this image encoding / decoding apparatus and method are disclosed . The conversion device converts a variable block size determining unit for determining the block size according to the color format conversion block or each color component of the input image; And for each color component of the input image wherein the encoding transform by the determined transform block size by including a transform coding and outputting the transform coefficients . ; According to the present invention , a given image characteristic that is, the color format and according to the characteristics of the components of the color conversion system by adaptively encoding the transform block size to the variable , high compression efficiency in compressing the video data can be obtained .