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    • 10. 发明申请
    • Moving Picture Encoding Apparatus
    • 运动图像编码装置
    • US20100111188A1
    • 2010-05-06
    • US12687007
    • 2010-01-13
    • Masaru TAKAHASHITaku Nakamura
    • Masaru TAKAHASHITaku Nakamura
    • H04N7/26H04N7/32H04N11/02
    • H04N19/59H04N19/103H04N19/132H04N19/139H04N19/159H04N19/172H04N19/176H04N19/40H04N19/513H04N19/587H04N19/61
    • Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through motion-compensated inter-frame prediction has: a MPEG-2 encoding unit including a motion vector estimator, a frame memory, a forward prediction circuit, a bidirectional prediction circuit, a prediction selection circuit, an intra-frame encoding circuit and a local decoding circuit; a MPEG-4 encoding unit including a frame extraction circuit for extracting a predetermined MPEG-2 frame and a transcoder for encoding the extracted frame; a motion vector calculator calculating a motion vector to be used for MPEG-4 prediction from a motion vector to be used for MPEG-2 prediction; and a prediction mode controller controlling the prediction mode of the MPEG-2 encoding unit in such that the MPEG-2 prediction mode becomes coincident with the MPEG-4 prediction mode.
    • MPEG-2和MPEG-4的数据同时产生小电路规模和小功耗。 用于通过运动补偿帧间预测对运动图像进行编码的运动图像编码装置具有:MPEG-2编码单元,包括运动矢量估计器,帧存储器,正向预测电路,双向预测电路,预测选择电路 帧内编码电路和本地解码电路; 包括用于提取预定的MPEG-2帧的帧提取电路和用于对所提取的帧进行编码的代码转换器的MPEG-4编码单元; 从用于MPEG-2预测的运动矢量中计算要用于MPEG-4预测的运动矢量的运动矢量计算机; 以及控制MPEG-2编码单元的预测模式的预测模式控制器,使得MPEG-2预测模式与MPEG-4预测模式一致。