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    • 2. 发明申请
    • METHOD FOR THE DISCONTINUOUS REGULATION AND TRANSMISSION OF THE LUMINANCE AND/OR CHROMINANCE COMPONENT IN DIGITAL IMAGE SIGNAL TRANSMISSION
    • 方法的不连续控制及亮度和/或色度中的数字图像信号,变速器传递
    • WO0223899A3
    • 2002-12-27
    • PCT/DE0103277
    • 2001-08-28
    • SIEMENS AGHERMSEN MARKUS
    • HERMSEN MARKUS
    • H04N19/507H04N7/26H03M7/30
    • H04N19/507
    • The invention relates to a method for regulating signal components of at least one data signal (DS) which is transmitted from a signal source (102) to a signal sink (111). The transmission takes place at discrete times according to whether and when there are changes in the data signal (DS) at the transmission end. A special example of embodiment of the invention comprises a method for automatic adjustment of the luminance, chrominance and/or colour saturation values in digital image transmission systems for video signals, for example in the television or multimedia fields. The invention is based on a method for transmitting differential images which are produced by subtraction of the YUV components of frames at scanning times which follow each other in time. According to the invention, these differential images are transmitted at irregular intervals at discrete points in time provided at least one suitably established time, Y, U or V threshold value is exceeded. This provides a means of considerably reducing the redundancy in the transmission signal and therefore, the data transmission rates compared to a periodically repeated differential image transmission.
    • 在数字图像信号传输本发明涉及一种用于至少一个数据信号(DS),它是由一个信号源(102)连接到信号接收器发送的信号分量的控制的方法的亮度和/或色度分量的非连续控制和传输的方法(111) 其中所述传输是在离散的时间取决于发送端是否或何时改变存在的数据信号(DS)进行,。 本发明的一个具体实施例包括用于自动调节亮度,色度和/或颜色的饱和度值在数字图像传输系统的视频信号,例如,在电视或多媒体的方法。 本发明是基于发送来自扫描的连续的采样倍YUV分量的减法得到的差分图像的方法。 根据本发明,以不规则的间隔在离散的时间点发送此差分图像,提供微量-几十合适的固定时间,当超过Y-,U或V的阈值。 以这种方式,在发送信号中的冗余,并与一个周期性重复的差分图像传输的数据传输速率可以显著降低。