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    • 1. 发明授权
    • Image encoding method and apparatus
    • 图像编码方法及装置
    • US06553143B2
    • 2003-04-22
    • US08425768
    • 1995-04-20
    • Nobutaka MiyakeYoshitake NagashimaTadayoshi NakayamaJoji OkiYuji KonnoKazuhide Hasegawa
    • Nobutaka MiyakeYoshitake NagashimaTadayoshi NakayamaJoji OkiYuji KonnoKazuhide Hasegawa
    • G06T900
    • H04N19/146H04N19/124H04N19/15
    • This invention relates to an image encoding method and apparatus, and particularly has as its object to satisfactorily control the amount of encoded image data. In order to achieve this object, according to this invention, there is disclosed a technique for sequentially controlling the code amounts in accordance with accumulated code amount information and accumulated encoded area information, so that variable-length codes of an image fall within a predetermined memory capacity in a single pass. More specifically, in an image processing apparatus having a compression processor (15) for compressing input image information, and a memory (16) for storing encoded data by the compression processor (15), a code amount controller (14) calculates a reference code amount on the basis of the input image information, and controls the encoding condition of the compression processor (15) on the basis of the calculated reference code amount.
    • 本发明涉及图像编码方法和装置,特别是其目的是令人满意地控制编码图像数据量。 为了实现该目的,根据本发明,公开了一种用于根据累积码量信息和累积编码区域信息依次控制码量的技术,使得图像的可变长度码落入预定存储器 一次通过能力。 更具体地,在具有用于压缩输入图像信息的压缩处理器(15)的图像处理装置和由压缩处理器(15)存储编码数据的存储器(16)中,代码量控制器(14)计算参考代码 基于输入图像信息量,并且基于所计算的参考代码量来控制压缩处理器(15)的编码条件。