Apparatus for encoding/transmitting an image

Abstract From the Canadian patent

This invention relates to an apparatus for encoding and transmitting an image. The apparatus includes a vector quantizer. A quantization preprocessing circuit is used for subsampling an image signal, for thinning out pixels from the image signal according to a pixel ratio and for generating, from the pixel signal an n-dimensional vector. A group of input buffers are used to store each input vector in a sequence for quantization processing and for repetitiously reading the input vector at an interval of the processing period. A vector output circuit is used to prepare the output vector corresponding to a probability distribution of the input vector and for selecting and outputting the output …