Patent ID: 6782134
Filing Date: 2004-08-24
Classification: G06F,G09G,H04N

Abstract:
A transmission apparatus for video information characterized by having:an input part for inputting video information transmitted by a central processing unit; a level information generation part for generating level information of each pixel on a screen based on, at least, said video information; a memory part for storing level information of each pixel of the entire region of the screen; a comparison part for comparing level information stored in said memory part with level information outputted by said level information generation part with respect to said pixel associated with said video information and for outputting comparison information; a region extraction part for extracting a region that includes a pixel wherein the level information stored in said memory part and the level information based on said video information are different according to said comparison information; a compression part for compressing the information amount of the level information of each pixel of said extracted region of the screen; and a communication part for transmitting position information of said region of the screen and said compressed level information.