Patent ID: 6023299
Filing Date: 2000-02-08
Classification: H04N

Abstract:
A video decoding device for decoding a video image from coded data, comprising:a coded data separating means for separately extracting a position-and-shape code of a selected area of each video image frame, a lower-layer code of a pixel value of the selected area of each video image frame, and an upper-layer code from the coded data;an area-position-and-shape decoding means for decoding the position-and-shape code of the selected area;a lower-layer decoding means for decoding the lower-layer code to produce a lower-layer decoded image of the selected area; andan upper-layer decoding means for decoding the upper-layer code by using the lower-layer decoded image to produce a decoded image of the whole area of the video image;wherein the video decoding device reproduces the lower-layer decoded image of the selected area and the decoded image of the whole area.