公开(公告)号：US08941775B2

公开(公告)日：2015-01-27

申请号：US14247505

申请日：2014-04-08

Applicant: Apple Inc.

Inventor： Haitao Guo ,  David Daming Kuo

IPC: H04N9/68 ,  H04N5/235

CPC classification number: H04N5/2354

Abstract: Systems, methods, and devices for obtaining a properly exposed strobe-illuminated image are provided. One method for doing so may include, for example, gathering image capture statistics during a first period when a strobe is not emitting light and during a second period when the strobe emits a preflash. These image capture statistics may include distinct image capture control statistics and luma values associated with the periods. Final image capture control statistics then may be determined based at least in part on the first luma value normalized to the first image capture control statistics and the second luma value normalized to the second image capture control statistics. Thereafter, the final image capture control statistics may be used to capture a properly exposed strobe-illuminated image when the strobe emits a main flash.

Abstract translation: 提供了用于获得正确暴露的频闪照明图像的系统，方法和装置。 一种这样做的方法可以包括例如在闪光灯不发光的第一时段期间和当闪光灯发出预闪光的第二时段期间收集图像拍摄统计。 这些图像捕获统计可以包括不同的图像捕获控制统计和与周期相关联的亮度值。 然后可以至少部分地基于归一化为第一图像捕获控制统计的第一亮度值和归一化为第二图像捕获控制统计的第二亮度值来确定最终图像捕获控制统计。 此后，当闪光灯发出主闪光时，最终的图像捕捉控制统计可用于捕获正确曝光的闪光灯照明图像。

公开(公告)号：US20140285709A1

公开(公告)日：2014-09-25

申请号：US14247505

申请日：2014-04-08

Applicant: Apple Inc.

Inventor： Haitao Guo ,  David Daming Kuo

IPC: H04N5/235

CPC classification number: H04N5/2354

Abstract: Systems, methods, and devices for obtaining a properly exposed strobe-illuminated image are provided. One method for doing so may include, for example, gathering image capture statistics during a first period when a strobe is not emitting light and during a second period when the strobe emits a preflash. These image capture statistics may include distinct image capture control statistics and luma values associated with the periods. Final image capture control statistics then may be determined based at least in part on the first luma value normalized to the first image capture control statistics and the second luma value normalized to the second image capture control statistics. Thereafter, the final image capture control statistics may be used to capture a properly exposed strobe-illuminated image when the strobe emits a main flash.

Abstract translation: 提供了用于获得正确暴露的频闪照明图像的系统，方法和装置。 一种这样做的方法可以包括例如在闪光灯不发光的第一时段期间和当闪光灯发出预闪光的第二时段期间收集图像拍摄统计。 这些图像捕获统计可以包括不同的图像捕获控制统计和与周期相关联的亮度值。 然后可以至少部分地基于归一化为第一图像捕获控制统计的第一亮度值和归一化为第二图像捕获控制统计的第二亮度值来确定最终图像捕获控制统计。 此后，当闪光灯发出主闪光时，最终的图像捕捉控制统计可用于捕获正确曝光的闪光灯照明图像。

公开(公告)号：US20140133749A1

公开(公告)日：2014-05-15

申请号：US13963641

申请日：2013-08-09

Applicant: APPLE INC.

Inventor： David Daming Kuo ,  Guy Cote

IPC: G06T7/40

CPC classification number: G06T7/408 ,  H04N5/213

Abstract: Systems and methods are provided for collecting image statistics using a pixel mask. In one example, statistics collection logic of an image signal processor may include a pixel weighting mask and accumulation logic. The pixel weighting mask may receive a first representation of a pixel that includes a luma and chroma representation of the pixel. The pixel weighting mask may output a pixel weighting using first and second chroma components of the luma and chroma representation of the pixel. The accumulation logic may receive the first or a second representation of the pixel and the pixel weighting value. Using these, the accumulation logic may weight the second representation of the pixel or the first representation of the pixel using the pixel weighting value to obtain a weighted pixel value, adding the weighted pixel value to a statistics count.

Abstract translation: 提供了使用像素掩码来收集图像统计信息的系统和方法。 在一个示例中，图像信号处理器的统计信息收集逻辑可以包括像素加权掩码和累加逻辑。 像素加权掩模可以接收包括像素的亮度和色度表示的像素的第一表示。 像素加权掩模可以使用像素的亮度和色度表示的第一和第二色度分量来输出像素加权。 累加逻辑可以接收像素的第一或第二表示和像素加权值。 使用这些，累积逻辑可以使用像素加权值来加权像素的第二表示或像素的第一表示，以获得加权像素值，将加权像素值加到统计计数。

公开(公告)号：US09317930B2

公开(公告)日：2016-04-19

申请号：US13963641

申请日：2013-08-09

Applicant: APPLE INC.

Inventor： David Daming Kuo ,  Guy Cote

IPC: G06T7/40 ,  H04N5/213

CPC classification number: G06T7/408 ,  H04N5/213

Abstract: Systems and methods are provided for collecting image statistics using a pixel mask. In one example, statistics collection logic of an image signal processor may include a pixel weighting mask and accumulation logic. The pixel weighting mask may receive a first representation of a pixel that includes a luma and chroma representation of the pixel. The pixel weighting mask may output a pixel weighting using first and second chroma components of the luma and chroma representation of the pixel. The accumulation logic may receive the first or a second representation of the pixel and the pixel weighting value. Using these, the accumulation logic may weight the second representation of the pixel or the first representation of the pixel using the pixel weighting value to obtain a weighted pixel value, adding the weighted pixel value to a statistics count.

Abstract translation: 提供了使用像素掩码来收集图像统计信息的系统和方法。 在一个示例中，图像信号处理器的统计信息收集逻辑可以包括像素加权掩码和累加逻辑。 像素加权掩模可以接收包括像素的亮度和色度表示的像素的第一表示。 像素加权掩模可以使用像素的亮度和色度表示的第一和第二色度分量来输出像素加权。 累加逻辑可以接收像素的第一或第二表示和像素加权值。 使用这些，累积逻辑可以使用像素加权值来加权像素的第二表示或像素的第一表示，以获得加权像素值，将加权像素值加到统计计数。

公开(公告)号：US08988563B2

公开(公告)日：2015-03-24

申请号：US13705122

申请日：2012-12-04

Applicant: Apple Inc.

Inventor： Andrew Yanowitz ,  Ting Chen ,  David Daming Kuo ,  Haitao Guo

IPC: H04N9/64 ,  H04N5/367 ,  G06T5/00 ,  H04N5/217 ,  H04N5/232 ,  H04N5/357 ,  H04N9/04

CPC classification number: H04N5/367 ,  G06T5/00 ,  G06T2200/28 ,  H04N5/2173 ,  H04N5/23229 ,  H04N5/3572 ,  H04N9/045

Abstract: Systems, methods, and devices for dual processing of raw image data by main image processing and alternative image processing capabilities of an electronic device are provided. According to an embodiment, alternative image processing may analyze a first copy of a frame of raw image data before a second copy of the frame of raw image data is processed by main image processing. Thereafter, the main image processing may process the second copy of the frame of raw image. The main image processing may be calibrated based at least in part on the analysis of the first copy of the frame of raw image data.

Abstract translation: 提供了通过主要图像处理和替代图像处理能力对原始图像数据进行双重处理的系统，方法和装置。 根据实施例，替代图像处理可以在通过主图像处理处理原始图像数据的帧的第二副本之前分析原始图像数据的帧的第一副本。 此后，主图像处理可以处理原始图像的帧的第二副本。 可以至少部分地基于原始图像数据的帧的第一副本的分析来校准主图像处理。

公开(公告)号：US20130342739A1

公开(公告)日：2013-12-26

申请号：US13705122

申请日：2012-12-04

Applicant: APPLE INC.

Inventor： Andrew Yanowitz ,  Ting Chen ,  David Daming Kuo ,  Haitao Guo

IPC: H04N5/367

CPC classification number: H04N5/367 ,  G06T5/00 ,  G06T2200/28 ,  H04N5/2173 ,  H04N5/23229 ,  H04N5/3572 ,  H04N9/045

Abstract: Systems, methods, and devices for dual processing of raw image data by main image processing and alternative image processing capabilities of an electronic device are provided. According to an embodiment, alternative image processing may analyze a first copy of a frame of raw image data before a second copy of the frame of raw image data is processed by main image processing. Thereafter, the main image processing may process the second copy of the frame of raw image. The main image processing may be calibrated based at least in part on the analysis of the first copy of the frame of raw image data.

Abstract translation: 提供了通过主要图像处理和替代图像处理能力对原始图像数据进行双重处理的系统，方法和装置。 根据实施例，替代图像处理可以在通过主图像处理处理原始图像数据的帧的第二副本之前分析原始图像数据的帧的第一副本。 此后，主图像处理可以处理原始图像的帧的第二副本。 可以至少部分地基于原始图像数据的帧的第一副本的分析来校准主图像处理。