Patent ID: 6088486
Filing Date: 2000-07-11
Classification: G06T,H04N

Abstract:
A picture encoding apparatus comprising:an object region detector configured for receiving an alpha-map signal of a whole picture including an object and a background surrounding the object, the alpha-map signal discriminating between the object and the background in accordance with information representing whether a value of the alpha-map signal is 0, and detecting a rectangular object region containing the object and a part of the background surrounding the object, from the whole picture to obtain an alpha-map signal of the rectangular object region and a position of the rectangular object region and a size thereof;an encoder configured for encoding the alpha-map signal of the rectangular object region and the position and size of the rectangular object region to output coded alpha-map data and coded position/size data; anda multiplexer configured for multiplexing the coded alpha-map data and the coded position/size data.