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公开(公告)号：US20180213141A1
公开(公告)日：2018-07-26
申请号：US15490517
申请日：2017-04-18
Applicant: QUALCOMM Incorporated
CPC classification number: H04N5/2256 , H04N5/2258 , H04N5/2354
Abstract: An aspect of this disclosure is an apparatus for capturing an image. The apparatus comprises an image sensor configured to capture an image of a field of view. The apparatus also comprises a flash component configured to illuminate at least a portion of the field of view at a power level during capture of a first frame by the image sensor. The apparatus further comprises a controller. The controller is configured to determine a flash ramp-up time for the flash component, the flash ramp-up time corresponding to an amount of time between a flash being requested at the power level and the flash component producing the flash at the power level. The controller is also configured to blank the image sensor for a blanking period during the flash ramp-up time.
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公开(公告)号：US20160088278A1
公开(公告)日：2016-03-24
申请号：US14491627
申请日：2014-09-19
Applicant: QUALCOMM INCORPORATED
Inventor： Ruben Manuel Velarde , Nathaniel Jay Tobias Salazar , Szepo Robert Hung , Sandeep Dhar , Hengzhou Ding
CPC classification number: H04N9/735 , G03B15/03 , G03B15/05 , G03B2215/0503 , G03B2215/0567 , G03B2215/0571 , H04N5/2354 , H04N9/045
Abstract: Certain aspects relate to systems and techniques for color temperature analysis and matching. For example, three or more camera flash LEDs of different output colors can be used to match any of a range of ambient color temperatures in a non-linear space on the black body curve. The scene color temperature can be analyzed in a preliminary image by determining actual sensor R/G and B/G ratios, enabling more accurate matching of foreground flash lighting to background lighting by the reference illuminant for subsequent white balance processing. The current provided to, and therefore brightness emitted from, each LED can be individually controlled based on the determined sensor response to provide a dynamic and adaptive mix of the output colors of the LEDs.
Abstract translation: 某些方面涉及色温分析和匹配的系统和技术。 例如，可以使用不同输出颜色的三个或更多个相机闪光LED来匹配黑体曲线上的非线性空间中的环境色温范围中的任何一个。 可以通过确定实际的传感器R / G和B / G比率，在初步图像中分析场景色温，从而能够通过参考光源更准确地将前景闪光照明与背景照明的匹配进行后续的白平衡处理。 可以基于所确定的传感器响应来单独地控制提供给每个LED并且因此从每个LED发射的亮度的电流，以提供LED的输出颜色的动态和自适应混合。
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公开(公告)号：US10609265B2
公开(公告)日：2020-03-31
申请号：US15490517
申请日：2017-04-18
Applicant: QUALCOMM Incorporated
Abstract: An aspect of this disclosure is an apparatus for capturing an image. The apparatus comprises an image sensor configured to capture an image of a field of view. The apparatus also comprises a flash component configured to illuminate at least a portion of the field of view at a power level during capture of a first frame by the image sensor. The apparatus further comprises a controller. The controller is configured to determine a flash ramp-up time for the flash component, the flash ramp-up time corresponding to an amount of time between a flash being requested at the power level and the flash component producing the flash at the power level. The controller is also configured to blank the image sensor for a blanking period during the flash ramp-up time.
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公开(公告)号：US09420248B2
公开(公告)日：2016-08-16
申请号：US14491627
申请日：2014-09-19
Applicant: QUALCOMM Incorporated
Inventor： Ruben Manuel Velarde , Nathaniel Jay Tobias Salazar , Szepo Robert Hung , Sandeep Dhar , Hengzhou Ding
CPC classification number: H04N9/735 , G03B15/03 , G03B15/05 , G03B2215/0503 , G03B2215/0567 , G03B2215/0571 , H04N5/2354 , H04N9/045
Abstract: Certain aspects relate to systems and techniques for color temperature analysis and matching. For example, three or more camera flash LEDs of different output colors can be used to match any of a range of ambient color temperatures in a non-linear space on the black body curve. The scene color temperature can be analyzed in a preliminary image by determining actual sensor R/G and B/G ratios, enabling more accurate matching of foreground flash lighting to background lighting by the reference illuminant for subsequent white balance processing. The current provided to, and therefore brightness emitted from, each LED can be individually controlled based on the determined sensor response to provide a dynamic and adaptive mix of the output colors of the LEDs.
Abstract translation: 某些方面涉及色温分析和匹配的系统和技术。 例如，可以使用不同输出颜色的三个或更多个相机闪光LED来匹配黑体曲线上的非线性空间中的环境色温范围中的任何一个。 可以通过确定实际的传感器R / G和B / G比率，在初步图像中分析场景色温，从而能够通过参考光源更准确地将前景闪光照明与背景照明的匹配进行后续的白平衡处理。 可以基于所确定的传感器响应来单独地控制提供给每个LED并且因此从每个LED发射的亮度的电流，以提供LED的输出颜色的动态和自适应混合。
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