PICTURE CODING METHOD AND PICTURE CODER

摘要

PURPOSE:To provide the efficient picture coding method and picture coder suitable for a coding compression rate in which picture quality deterioration due to coding noise of a reproduced picture is reduced regardless of high compression rate coding. CONSTITUTION:The device is provided with a band limit processing means 1 applying band limit processing to a picture signal in the plural modes in response to a coding compression rate for compression coding, a compression coding means 2 is used to apply compression code processing to the picture signal subjected to band limit with a compression rate in response to a compression rate control signal generated from a compression rate control signal generator 3. Thus, the efficient coding with less picture quality deterioration even in the high compression rate or low compression rate coding is realized.