SYSTEM AND METHOD TO ESTIMATE AUTOEXPOSURE CONTROL AND AUTO WHITE BALANCE
    1.
    发明申请
    SYSTEM AND METHOD TO ESTIMATE AUTOEXPOSURE CONTROL AND AUTO WHITE BALANCE 有权
    估算自动曝光控制和自动白平衡的系统和方法

    公开(公告)号:US20100157139A1

    公开(公告)日:2010-06-24

    申请号:US12340046

    申请日:2008-12-19

    IPC分类号: H04N5/238

    CPC分类号: H04N9/735 H04N5/2354

    摘要: In a particular embodiment, a method is disclosed that includes determining at least one ambient exposure parameter using an ambient illumination, the at least one ambient exposure parameter including a first sensitivity parameter of an autoexposure controller using the ambient illumination. The method includes determining at least one low-illumination parameter using a first lamp level, the at least one low-illumination parameter including a second sensitivity parameter of the autoexposure controller using the first lamp level, where the autoexposure controller is configured to operate according to at least one high-illumination parameter based on the at least one ambient exposure parameter and the at least one low-illumination parameter. The method further includes performing an image capture operation using a second lamp level that is brighter than the first lamp level, where the at least one high-illumination parameter includes a third sensitivity parameter.

    摘要翻译: 在一个具体实施例中,公开了一种方法,其包括使用环境照明确定至少一个环境曝光参数,所述至少一个环境曝光参数包括使用环境照明的自动曝光控制器的第一灵敏度参数。 该方法包括使用第一灯电平确定至少一个低照度参数,所述至少一个低照度参数包括使用第一灯电平的自动曝光控制器的第二灵敏度参数,其中自动曝光控制器被配置为根据 基于所述至少一个环境曝光参数和所述至少一个低照度参数的至少一个高照度参数。 该方法还包括使用比第一灯电平更亮的第二灯电平执行图像捕获操作,其中至少一个高照度参数包括第三灵敏度参数。

    REGION OF INTEREST EXTRACTION
    2.
    发明申请
    REGION OF INTEREST EXTRACTION 有权
    兴趣区域提取

    公开(公告)号:US20120105668A1

    公开(公告)日:2012-05-03

    申请号:US12912863

    申请日:2010-10-27

    IPC分类号: H04N5/235 H04N9/73 G06K9/46

    摘要: An example image capture device determines a region of interest using a first image captured while a light source is powered off and a second image captured while a light source is powered on and uses the region of interest to automatically set configurations. In one example, an image capture device includes a controlled light source, an image sensor configured to capture images, and a processing unit configured to cause the image sensor to capture a first image of a scene while the controlled light source is powered off, cause the image sensor to capture a second image of the scene while the controlled light source is powered on, calculate luminance differences between a plurality of regions in the first image and a plurality of collocated regions in the second image, and determine that a region of interest includes those regions for which the luminance differences exceed a threshold.

    摘要翻译: 示例性图像捕获装置使用在光源断电时捕获的第一图像和在光源通电时捕获的第二图像来确定感兴趣区域,并使用感兴趣区域来自动设置配置。 在一个示例中,图像捕获装置包括受控光源,被配置为捕获图像的图像传感器,以及被配置为使得图像传感器在受控光源断电时捕获场景的第一图像的处理单元, 所述图像传感器在所述受控光源通电的同时捕获所述场景的第二图像,计算所述第一图像中的多个区域与所述第二图像中的多个并置区域之间的亮度差,并且确定感兴趣的区域 包括亮度差超过阈值的区域。