Patent ID: 6470050
Filing Date: 2002-10-22
Classification: H04N

Abstract:
An image coding apparatus which uses motion compensation inter-frame prediction comprising:an image input unit; a coding unit including a motion compensation unit for performing the motion compensation inter-frame prediction, a code generation unit for coding an output result of the motion compensation unit, and an image reproduction unit for reconstructing an image on the basis of a code generation result; a code output unit for outputting a code generated by the coding unit; a search range frame memory for containing the output of the image reproduction unit; a coding target frame memory for containing frame data which is output by the image input unit; a first data bus for performing data transfer from the search range frame memory to the coding unit; and a second data bus for performing data transfer from the coding target frame memory to the coding unit, and the motion compensation unit selecting a block in a search range, using the search range which is input from the search range frame memory via the first data bus and a coding target block which is input from the coding target frame memory via the second data bus, and performing the motion compensation.