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    • 5. 发明授权
    • Ambient light analysis methods, imaging devices, and articles of manufacture
    • 环境光分析方法,成像装置和制品
    • US07394541B1
    • 2008-07-01
    • US11444937
    • 2006-05-31
    • Jeffrey M. DiCarloCasey L. Miller
    • Jeffrey M. DiCarloCasey L. Miller
    • G01J3/51
    • H04N9/735
    • Ambient light analysis methods, imaging devices, and articles of manufacture are described. According to one aspect, an ambient light analysis method includes emitting light using a source, first filtering the light of the source providing first filtered light, first receiving the first filtered light using an imaging device, providing a first response of the imaging device to the first filtered light, second filtering ambient light providing second filtered light, second receiving the second filtered light using the imaging device, providing a second response of the imaging device to the second filtered light, and determining information regarding a spectral power distribution of the ambient light using the first response and the second response.
    • 描述了环境光分析方法,成像装置和制品。 根据一个方面,环境光分析方法包括使用源发射光,首先对提供第一经滤光的光源进行滤光,首先使用成像装置接收第一滤光光,将成像装置的第一响应提供给 第一过滤光,第二过滤环境光提供第二过滤光,第二次使用成像装置接收第二过滤光,提供成像装置对第二过滤光的第二响应,以及确定关于环境光的光谱功率分布的信息 使用第一个响应和第二个响应。
    • 8. 发明授权
    • Systems and methods for arriving at an auto focus Figure of Merit
    • 达到自动对焦的系统和方法优点图
    • US07343047B2
    • 2008-03-11
    • US10946771
    • 2004-09-22
    • Eric F. AasGregory V. HoferCasey L. Miller
    • Eric F. AasGregory V. HoferCasey L. Miller
    • G06K9/40H04N5/232
    • H04N5/23212G02B7/36
    • A method comprises detecting edges in at least a region of a captured focus image, using adjacent pixels of the region to obtain first edge detection results and filtering the first edge detection results. The first filtering comprises comparing differences in pixel contrast in the first edge detection results with a first threshold value and removing the differences in pixel contrast that are less than the first threshold value from the first edge detection results. The method further comprises detecting edges in at least the region, using non-adjacent pixels of the region to obtain second edge detection results and filtering the second edge detection results. The second filtering comprising comparing differences in pixel contrast in the second edge detection results with a second threshold value and removing the differences in pixel contrast that are less than the second threshold value from the second edge detection results.
    • 一种方法包括使用所述区域的相邻像素来检测所捕获的聚焦图像的至少一个区域中的边缘,以获得第一边缘检测结果并对第一边缘检测结果进行滤波。 第一滤波包括将第一边缘检测结果中的像素对比度的差异与第一阈值进行比较,并且从第一边缘检测结果去除小于第一阈值的像素对比度的差异。 该方法还包括使用该区域的不相邻像素来检测至少该区域中的边缘,以获得第二边缘检测结果并对第二边缘检测结果进行滤波。 第二滤波包括将第二边缘检测结果中的像素对比度的差异与第二阈值进行比较,并且从第二边缘检测结果去除小于第二阈值的像素对比度的差异。