Determining contour vertex-based shape coding mode from the information coding scheme / transmission device and method

摘要

1. the art that the invention defined in the claims; Vertex-based shape information coding method; 2. The invention attempts to solve the technical challenges; Even at the height based on the existing contour shape information coding method span VOP boundaries it will have to solve the problems that greatly reduce the coding efficiency by encoding to handle all point to the apex.; 3. Resolution of the subject matter of the invention,; Loss / lossless coding flag decision means 10 for determining the loss / lossless encoding if the formed shape information; Loss / lossless coding flag decision means 10 zone display means 20 for displaying each of the regions divided by the shape information via the background and blank areas within the object and object and; Zone display means 20, a contour extraction means 30 for extracting the contour of the outside of each area extracted at the; Loss / in accordance with the loss / lossless encoding flag is passed from the lossless encoding flag decision means 10 determines the encoding mode of the contour information extracted from the contour extraction unit 30 and the vertex of extracting a vertex to be encoded from the contour information extraction means 40 and; The initial vertex encoding means for encoding an initial vertex of a vertex extraction means extracts from the apex 40, 50, and; Initial vertex encoding means 50, a peak output the having a vertex encoding means 60 for encoding the coding scheme corresponding to the encoding mode determined by the vertex extraction unit 40, and loss when of the extracted vertex coded / Lossless in determining an encoding mode according to the determined encoding method and and encoding the vertex by changing the coding method according to the determined encoding mode, to one characterized in that for transmitting the determined encoding mode to the receiving end.; 4. An important use of the invention,; It will be applied to the vertex-based shape information loss / lossless coding scheme for efficient compression encoding of the outline (contour) of the binary mask (binary mask).