Patent ID: 7515760
Filing Date: 2009-04-07
Classification: H04N

Abstract:
1. A picture-data compression system for compressing inputted multiple picture data, comprising: a storage device that stores the multiple picture data; a selection controller that writes the multiple picture data into the storage device and reads the multiple picture data from the storage device; a pixel-number converter that converts the number of pixels of the picture data read from the storage device; and an inter-picture predictive coding unit that codes the picture data whose number of pixels is converted by the pixel-number converter by inter-picture predictive coding, wherein the selection controller reads the picture data written to the storage device at a period of 1/n (positive integer) times the frame period or field period of the picture data; the pixel-number converter converts the number of pixels of the picture data read from the storage device to 1/m times (positive integer) the original; and the selection controller controls the values n and m depending on the number of pixels that can be processed by the inter-picture predictive coding unit in a unit time.