Patent ID: 6389073
Filing Date: 2002-05-14
Classification: H04N

Abstract:
A coding control apparatus for deciding, in coding data formed by a plurality of frames on the basis of a generated information amount being the amount of coded data generated by coding one frame or an occupied amount in a smoothing buffer used for transmission of data after coding, a quantization characteristic employed for coding a next frame to said one frame, comprising:comparison means for comparing said generated information amount or said occupied amount with a predetermined value; and quantization characteristic decision means for dividing each frame of said plurality of frames previously into a plurality of areas while classifying said plurality of areas in said each frame into a first group and a second group for setting in response to a comparison result by said comparison means the same quantization characteristic for said first and second groups or setting one of most approximate two different quantization characteristics for said first group and the other one for said second group respectively.