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    • 32. 发明授权
    • Moving image coding apparatus and moving image decoding apparatus
    • 运动图像编码装置和运动图像解码装置
    • US5327173A
    • 1994-07-05
    • US655359
    • 1991-02-19
    • Yoshitsugu NishizawaYuji TakenakaTakahiro HosokawaYuji MoriHideki Miyasaka
    • Yoshitsugu NishizawaYuji TakenakaTakahiro HosokawaYuji MoriHideki Miyasaka
    • G06T9/00H04N5/926H04N7/32H04N7/36H04N7/12H04N1/41
    • H04N19/124H04N19/50H04N19/503H04N5/926
    • A moving image coding apparatus comprises: an intraframe coding circuit for carrying out band compression of moving image data by intraframe coding; an interframe coding circuit for carrying out band compression of moving image data by interframe coding; a block division circuit for dividing data in each frame into a plurality of blocks each of which includes a predetermined number of pixels; and a coding switch circuit for switching a coding operation which is carried out in the coder, so that coding is carried out by the intraframe coding circuit for moving image data of a predetermined portion of pixels in each of the plurality of blocks, and coding is carried out by the interframe coding circuit for moving image data of a remaining portion of pixels in each of the plurality of blocks. A moving image decoding apparatus comprises: an interframe decoding circuit for decoding moving image data which is band compressed by interframe coding; an intraframe decoding circuit for decoding moving image data which is band compressed by intraframe coding; and a decoding switch circuit for switching a decoding operation which is carried out in the decoder, so that decoding is carried out by the intraframe decoding circuit when moving image data which is band compressed by intraframe coding is input, and decoding is carried out by the interframe decoding circuit when moving image data which is band compressed by interframe coding is input.
    • PCT No.PCT / JP90 / 00799 Sec。 371日期1991年2月19日 102(e)1991年2月19日PCT申请1990年6月19日PCT公布。 WO90 / 16130 PCT出版物 日期:1990年12月27日。运动图像编码装置包括:帧内编码电路,用于通过帧内编码对运动图像数据进行带宽压缩; 帧间编码电路,用于通过帧间编码进行运动图像数据的频带压缩; 块分割电路,用于将每帧中的数据分成多个块,每个块包括预定数量的像素; 以及用于切换在编码器中执行的编码操作的编码开关电路,使得通过帧内编码电路进行编码,以移动多个块中每个块中的预定部分像素的图像数据,并且编码是 由帧间编码电路执行,用于移动多个块中每个块中的剩余部分像素的图像数据。 一种运动图像解码装置,包括:帧间解码电路,用于对通过帧间编码进行频带压缩的运动图像数据进行解码; 一个帧内解码电路,用于对通过帧内编码进行频带压缩的运动图像数据进行解码; 以及用于切换在解码器中执行的解码操作的解码开关电路,使得当通过帧内编码进行了频带压缩的运动图像数据被输入时,通过帧内解码电路进行解码,并且解码由 输入通过帧间编码进行频带压缩的图像数据的帧间解码电路。