Pre-processing method and apparatus for wide dynamic range image processing
    3.
    发明申请
    Pre-processing method and apparatus for wide dynamic range image processing 有权
    用于宽动态范围图像处理的预处理方法和装置

    公开(公告)号:US20090268963A1

    公开(公告)日:2009-10-29

    申请号:US12381920

    申请日:2009-03-18

    IPC分类号: G06K9/00 H04N9/77

    摘要: Provided are method and apparatus of pre-processing in WDR (wide dynamic range) image processing, the method of pre-processing of WDR image processing including: (a) receiving luminance and chrominance signals having different exposure times, and analyzing the correlation between a luminance signal having a first exposure time and a luminance signal having a second exposure time that is longer than the first exposure time; (b) based on the result of the analysis, dividing each of the luminance signal having the first exposure time and the luminance signal having the second exposure signal, into at least one of a bright region, a transition region, and a dark region; and (c) normalizing the regions of the luminance signal having the first exposure time to respectively correspond to the regions of the luminance signal having the second exposure times.

    摘要翻译: 提供了在WDR(宽动态范围)图像处理中预处理的方法和装置,WDR图像处理的预处理方法包括:(a)接收具有不同曝光时间的亮度和色度信号,并分析其中的相关性 具有第一曝光时间的亮度信号和具有比第一曝光时间长的第二曝光时间的亮度信号; (b)基于分析结果,将具有第一曝光时间的亮度信号和具有第二曝光信号的亮度信号分成亮区域,过渡区域和暗区域中的至少一个; 以及(c)对具有第一曝光时间的亮度信号的区域进行归一化,以分别对应于具有第二曝光时间的亮度信号的区域。

    Pre-processing method and apparatus for wide dynamic range image processing
    4.
    发明授权
    Pre-processing method and apparatus for wide dynamic range image processing 有权
    用于宽动态范围图像处理的预处理方法和装置

    公开(公告)号:US08135235B2

    公开(公告)日:2012-03-13

    申请号:US12381920

    申请日:2009-03-18

    IPC分类号: G06K9/36 G09G5/02 H04N9/77

    摘要: Provided are method and apparatus of pre-processing in WDR (wide dynamic range) image processing, the method of pre-processing of WDR image processing including: (a) receiving luminance and chrominance signals having different exposure times, and analyzing the correlation between a luminance signal having a first exposure time and a luminance signal having a second exposure time that is longer than the first exposure time; (b) based on the result of the analysis, dividing each of the luminance signal having the first exposure time and the luminance signal having the second exposure signal, into at least one of a bright region, a transition region, and a dark region; and (c) normalizing the regions of the luminance signal having the first exposure time to respectively correspond to the regions of the luminance signal having the second exposure times.

    摘要翻译: 提供了在WDR(宽动态范围)图像处理中预处理的方法和装置,WDR图像处理的预处理方法包括:(a)接收具有不同曝光时间的亮度和色度信号,并分析其中的相关性 具有第一曝光时间的亮度信号和具有比第一曝光时间长的第二曝光时间的亮度信号; (b)基于分析结果,将具有第一曝光时间的亮度信号和具有第二曝光信号的亮度信号分成亮区域,过渡区域和暗区域中的至少一个; 以及(c)对具有第一曝光时间的亮度信号的区域进行归一化,以分别对应于具有第二曝光时间的亮度信号的区域。