Vector quantized video compression apparatus and method, and vector quantized code book generation method

摘要

TECHNICAL FIELD The present invention relates to the field of image compression, and more particularly, to an apparatus and method for vector quantization image compression using vector size and elements' variance.;The present invention relates to a vector quantized video compression apparatus for compressing an input image and outputting compressed image data, the pixel block segmentation and vectorizer for dividing the input image into unit pixel blocks and vectorizing the input image to a vectorized input vector. Input vector size and element variance calculator for calculating the variance of the magnitude and the vector element, Codebook search paragraph selector for setting the range of the reference vector to be searched based on the calculated vector size and element variance, A code book consisting of reference vectors arranged according to size, and the closest one that finds the reference vector closest to the input vector in the search section of the code book and outputs compressed image data consisting of the address string of the reference vector. Provided is a vector quantized image compressor including a reference vector searcher.