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    • 3. 发明申请
    • Method and apparatus for calibrating and correcting tone scale differences between two or more outputs of a CCD
    • 用于校准和校正CCD的两个或更多个输出之间的色标差异的方法和装置
    • US20060170774A1
    • 2006-08-03
    • US11048469
    • 2005-01-31
    • Stephen CoppolaJohn Compton
    • Stephen CoppolaJohn Compton
    • H04N17/02H04N17/00
    • H04N17/002
    • A method for calibrating a camera contemporaneously with image capture where the camera includes an image sensor with two or more output channels, the method includes the steps of providing two or more output channels that receive data from the image sensor; wherein the two or more output channels are respectively connected to two or more portions of the image sensor so that a boundary exists between the portions in a general direction; providing an illumination source that permits illumination of the image sensor substantially parallel to the general direction of the boundary so that creation of a gradient image is permitted in the image sensor; providing a measuring mechanism for permitting measurement of pixel values of the image sensor at a plurality of locations; providing a processor for permitting determination of a mapping function from the plurality of measured values; permitting mapping of pixels in each portion of the image sensor so that one or more pixel values are mapped to different pixel values based on the mapping function; and permitting applying the mapping function to an image captured in close temporal proximity to mapping the one or more pixels.
    • 一种用于在照相机包括具有两个或更多个输出通道的图像传感器的情况下与摄像机同时校准相机的方法,所述方法包括提供从图像传感器接收数据的两个或更多个输出通道的步骤; 其中两个或更多个输出通道分别连接到图像传感器的两个或更多个部分,使得在大体方向上的部分之间存在边界; 提供照明源,其允许图像传感器基本上平行于边界的大体方向照明,从而允许在图像传感器中创建梯度图像; 提供用于允许在多个位置处测量图像传感器的像素值的测量机构; 提供处理器,用于允许从多个测量值确定映射函数; 允许图像传感器的每个部分中的像素的映射,使得基于映射函数将一个或多个像素值映射到不同的像素值; 并且允许将映射函数应用于紧密临时捕获的图像以映射所述一个或多个像素。