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    • 5. 发明授权
    • Method for device spectral sensitivity reconstruction
    • 器件光谱灵敏度重建方法
    • US07557826B2
    • 2009-07-07
    • US11398196
    • 2006-04-04
    • Alexander BerestovTed J CooperKenichi NishioFarhan A. Baqai
    • Alexander BerestovTed J CooperKenichi NishioFarhan A. Baqai
    • H04N17/00H04N17/02H04N5/235H04N3/14H04N5/335H04N1/46H01J40/14H01L27/00
    • H04N17/002H04N9/045
    • A method and system are provided for approximating spectral sensitivities of a particular image sensor, the image sensor having a color filter array positioned over the image sensor. In one example of the method, the method involves measuring spectral sensitivities of a set of image sensors each having a color filter array positioned over the image sensor, calculating mean spectral sensitivities of the set of image sensors for each color within the color filter array, measuring outputs of a particular image sensor when capturing a picture of a plurality of color patches under a first illuminant and calculating spectral sensitivities of the particular image sensor using the mean spectral sensitivities and the output of the particular image sensor. In some embodiments, the method further comprises utilizing the calculated spectral sensitivities to determine outputs of the particular image sensor under a second illuminant. In some embodiments, the method further comprises utilizing the calculated spectral sensitivities to calibrate a camera including the image sensor.
    • 提供了用于近似特定图像传感器的光谱灵敏度的方法和系统,该图像传感器具有位于图像传感器上方的滤色器阵列。 在该方法的一个示例中,该方法涉及测量一组图像传感器的光谱灵敏度,每个图像传感器具有位于图像传感器上方的滤色器阵列,计算滤色器阵列内每种颜色的图像传感器组的平均光谱灵敏度, 测量特定图像传感器的输出,当在第一光源下拍摄多个色块的图像时,使用平均光谱灵敏度和特定图像传感器的输出来计算特定图像传感器的光谱灵敏度。 在一些实施例中,该方法还包括利用所计算的光谱灵敏度来确定第二光源下的特定图像传感器的输出。 在一些实施例中,该方法还包括利用所计算的光谱灵敏度来校准包括图像传感器的照相机。
    • 8. 发明申请
    • Method for device spectral sensitivity reconstruction
    • 器件光谱灵敏度重建方法
    • US20070229666A1
    • 2007-10-04
    • US11398196
    • 2006-04-04
    • Alexander BerestovTed CooperKenichi NishioFarhan Baqai
    • Alexander BerestovTed CooperKenichi NishioFarhan Baqai
    • H04N17/00
    • H04N17/002H04N9/045
    • A method and system are provided for approximating spectral sensitivities of a particular image sensor, the image sensor having a color filter array positioned over the image sensor. In one example of the method, the method involves measuring spectral sensitivities of a set of image sensors each having a color filter array positioned over the image sensor, calculating mean spectral sensitivities of the set of image sensors for each color within the color filter array, measuring outputs of a particular image sensor when capturing a picture of a plurality of color patches under a first illuminant and calculating spectral sensitivities of the particular image sensor using the mean spectral sensitivities and the output of the particular image sensor. In some embodiments, the method further comprises utilizing the calculated spectral sensitivities to determine outputs of the particular image sensor under a second illuminant. In some embodiments, the method further comprises utilizing the calculated spectral sensitivities to calibrate a camera including the image sensor.
    • 提供了用于近似特定图像传感器的光谱灵敏度的方法和系统,该图像传感器具有位于图像传感器上方的滤色器阵列。 在该方法的一个示例中,该方法涉及测量一组图像传感器的光谱灵敏度,每个图像传感器具有位于图像传感器上方的滤色器阵列,计算滤色器阵列内每种颜色的图像传感器组的平均光谱灵敏度, 测量特定图像传感器的输出,当在第一光源下拍摄多个色块的图像时,使用平均光谱灵敏度和特定图像传感器的输出来计算特定图像传感器的光谱灵敏度。 在一些实施例中,该方法还包括利用所计算的光谱灵敏度来确定第二光源下的特定图像传感器的输出。 在一些实施例中,该方法还包括利用所计算的光谱灵敏度来校准包括图像传感器的照相机。