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公开(公告)号：US20140354842A1
公开(公告)日：2014-12-04
申请号：US13903671
申请日：2013-05-28
Applicant: Apple Inc.
Inventor： Russell Pflughaupt , Rolf Toft , Paul Hubel , Anita Nariani Schulze
CPC classification number: H04N5/23267 , G06T5/50 , G06T7/246 , G06T2207/20208 , G06T2207/20221 , H04N5/2355 , H04N5/2356
Abstract: Systems, methods, and computer readable media to improve image stabilization operations and other image processing operations are described. A novel combination of interleaved image capture and image processing operations, e.g., image registration operations, may be employed on a bracketed capture of still images. Such techniques may result in improved camera performance and processing efficiency, as well as decreased shot-to-shot time intervals. In another embodiment, an image fusion portion of an image post-processing pipeline may also be performed in an interleaved fashion, such that each image in the sequence of obtained bracketed images may be incrementally added to an output composite image after it has been aligned with the preceding image or images from the sequence.
Abstract translation: 描述了用于改善图像稳定操作和其他图像处理操作的系统，方法和计算机可读介质。 交织图像捕捉和图像处理操作（例如，图像注册操作）的新颖组合可以用于静止图像的括号捕获。 这样的技术可以导致相机性能和处理效率的提高，并且可以降低镜头到拍摄时间间隔。 在另一个实施例中，图像后处理流水线的图像融合部分也可以以交错方式执行，使得所获得的包围图像的序列中的每个图像可以在与已被对齐的图像对准之后被递增地添加到输出合成图像 先前的图像或序列中的图像。
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2.发明授权Multi-band YCbCr noise modeling and noise reduction based on scene metadata 有权基于场景元数据的多频段YCbCr噪声建模和降噪公开(公告)号：US09525804B2
公开(公告)日：2016-12-20
申请号：US14474100
申请日：2014-08-30
Applicant: Apple Inc.
Inventor： Farhan A. Baqai , Claus Molgaard , Fabio Riccardi , Russell Pflughaupt
CPC classification number: H04N5/217 , G06T5/002 , G06T5/10 , G06T2207/10024 , G06T2207/20016 , G06T2207/20048 , H04N5/21 , H04N9/077 , H04N9/646
Abstract: Image enhancement is achieved by separating image signals, e.g. YCbCr image signals, into a series of frequency bands and performing noise reduction on bands below a given frequency but not on bands above that frequency. The bands are summed to develop the image enhanced signals. The YCbCr, multi-band approach to denoising is able to operate independently—and in an optimized fashion—on both luma and chroma channels. Noise reduction is done based on models developed for both luma and chroma channels by measurements taken for multiple frequency bands, in multiple patches on the ColorChecker chart, and at multiple gain levels, in order to develop a simple yet robust set of models that may be tuned off-line a single time for each camera and then applied to images taken by such cameras in real-time without excessive processing requirements and with satisfactory results across illuminant types and lighting conditions.
Abstract translation: 图像增强通过分离图像信号来实现。 YCbCr图像信号转换成一系列频带，并在低于给定频率但不超过该频率的频带上进行降噪。 将频带相加以开发图像增强信号。 YCbCr多频去噪方法能够在亮度和色度通道上独立运行，并以优化方式运行。 基于通过对ColorChecker图表上的多个频段进行测量，在ColorChecker图表上以多个增益水平测量的亮度和色度通道开发的模型以及多个增益水平来进行降噪，以便开发一个简单但可靠的模型集 为每台摄像机单独调整离线时间，然后实时应用于摄像机所拍摄的图像，而无需过多的处理要求，并且在各种照明类型和照明条件下都能获得令人满意的结果。
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公开(公告)号：US09350916B2
公开(公告)日：2016-05-24
申请号：US13903671
申请日：2013-05-28
Applicant: Apple Inc.
Inventor： Russell Pflughaupt , Rolf Toft , Paul Hubel , Anita Nariani Schulze
CPC classification number: H04N5/23267 , G06T5/50 , G06T7/246 , G06T2207/20208 , G06T2207/20221 , H04N5/2355 , H04N5/2356
Abstract: Systems, methods, and computer readable media to improve image stabilization operations and other image processing operations are described. A novel combination of interleaved image capture and image processing operations, e.g., image registration operations, may be employed on a bracketed capture of still images. Such techniques may result in improved camera performance and processing efficiency, as well as decreased shot-to-shot time intervals. In another embodiment, an image fusion portion of an image post-processing pipeline may also be performed in an interleaved fashion, such that each image in the sequence of obtained bracketed images may be incrementally added to an output composite image after it has been aligned with the preceding image or images from the sequence.
Abstract translation: 描述了用于改善图像稳定操作和其他图像处理操作的系统，方法和计算机可读介质。 交织图像捕捉和图像处理操作（例如，图像注册操作）的新颖组合可以用于静止图像的括号捕获。 这样的技术可以导致相机性能和处理效率的提高，并且可以降低镜头到拍摄时间间隔。 在另一个实施例中，图像后处理流水线的图像融合部分也可以以交错方式执行，使得所获得的包围图像的序列中的每个图像可以在与已被对齐的图像对准之后被递增地添加到输出合成图像 先前的图像或序列中的图像。
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4.发明申请Multi-Band YCbCr Noise Modeling And Noise Reduction Based On Scene Metadata 有权基于场景元数据的多频YCbCr噪声建模与降噪公开(公告)号：US20160065794A1
公开(公告)日：2016-03-03
申请号：US14474100
申请日：2014-08-30
Applicant: Apple Inc.
Inventor： Farhan A. Baqai , Claus Molgaard , Fabio Riccardi , Russell Pflughaupt
CPC classification number: H04N5/217 , G06T5/002 , G06T5/10 , G06T2207/10024 , G06T2207/20016 , G06T2207/20048 , H04N5/21 , H04N9/077 , H04N9/646
Abstract: Image enhancement is achieved by separating image signals, e.g. YCbCr image signals, into a series of frequency bands and performing noise reduction on bands below a given frequency but not on bands above that frequency. The bands are summed to develop the image enhanced signals. The YCbCr, multi-band approach to denoising is able to operate independently—and in an optimized fashion—on both luma and chroma channels. Noise reduction is done based on models developed for both luma and chroma channels by measurements taken for multiple frequency bands, in multiple patches on the ColorChecker chart, and at multiple gain levels, in order to develop a simple yet robust set of models that may be tuned off-line a single time for each camera and then applied to images taken by such cameras in real-time without excessive processing requirements and with satisfactory results across illuminant types and lighting conditions.
Abstract translation: 图像增强通过分离图像信号来实现。 YCbCr图像信号转换成一系列频带，并在低于给定频率但不超过该频率的频带上进行降噪。 将频带相加以开发图像增强信号。 YCbCr多频去噪方法能够在亮度和色度通道上独立运行，并以优化方式运行。 基于通过对ColorChecker图表上的多个频段进行测量，在ColorChecker图表上以多个增益水平测量的亮度和色度通道开发的模型以及多个增益水平来进行降噪，以便开发一个简单但可靠的模型集 为每台摄像机单独调整离线时间，然后实时应用于摄像机所拍摄的图像，而无需过多的处理要求，并且在各种照明类型和照明条件下都能获得令人满意的结果。
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