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公开(公告)号：US12177586B2
公开(公告)日：2024-12-24
申请号：US18330973
申请日：2023-06-07
Applicant: Apple Inc.
Inventor： Guy Cote , D. Amnon Silverstein , Suk Hwan Lim , Sheng Lin , Haitao Guo
IPC: H04N25/67
Abstract: The present disclosure generally relates to systems and methods for image data processing. In certain embodiments, an image processing pipeline may be configured to receive a frame of the image data having a plurality of pixels acquired using a digital image sensor. The image processing pipeline may then be configured to determine a first plurality of correction factors that may correct each pixel in the plurality of pixels for fixed pattern noise. The first plurality of correction factors may be determined based at least in part on fixed pattern noise statistics that correspond to the frame of the image data. After determining the first plurality of correction factors, the image processing pipeline may be configured to apply the first plurality of correction factors to the plurality of pixels, thereby reducing the fixed pattern noise present in the plurality of pixels.
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公开(公告)号：US20230336888A1
公开(公告)日：2023-10-19
申请号：US18330973
申请日：2023-06-07
Applicant: Apple Inc.
Inventor： Guy Cote , D. Amnon Silverstein , Suk Hwan Lim , Sheng Lin , Haitao Guo
IPC: H04N25/67
CPC classification number: H04N25/67
Abstract: The present disclosure generally relates to systems and methods for image data processing. In certain embodiments, an image processing pipeline may be configured to receive a frame of the image data having a plurality of pixels acquired using a digital image sensor. The image processing pipeline may then be configured to determine a first plurality of correction factors that may correct each pixel in the plurality of pixels for fixed pattern noise. The first plurality of correction factors may be determined based at least in part on fixed pattern noise statistics that correspond to the frame of the image data. After determining the first plurality of correction factors, the image processing pipeline may be configured to configured to apply the first plurality of correction factors to the plurality of pixels, thereby reducing the fixed pattern noise present in the plurality of pixels.
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公开(公告)号：US20220014697A1
公开(公告)日：2022-01-13
申请号：US17377308
申请日：2021-07-15
Applicant: Apple Inc.
Inventor： Guy Cote , D. Amnon Silverstein , Suk Hwan Lim , Sheng Lin , Haitao Guo
IPC: H04N5/365
Abstract: The present disclosure generally relates to systems and methods for image data processing. In certain embodiments, an image processing pipeline may be configured to receive a frame of the image data having a plurality of pixels acquired using a digital image sensor. The image processing pipeline may then be configured to determine a first plurality of correction factors that may correct each pixel in the plurality of pixels for fixed pattern noise. The first plurality of correction factors may be determined based at least in part on fixed pattern noise statistics that correspond to the frame of the image data. After determining the first plurality of correction factors, the image processing pipeline may be configured to configured to apply the first plurality of correction factors to the plurality of pixels, thereby reducing the fixed pattern noise present in the plurality of pixels.
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公开(公告)号：US20210319536A1
公开(公告)日：2021-10-14
申请号：US16846904
申请日：2020-04-13
Applicant: Apple Inc.
Inventor： Ching E. Ho , D. Amnon Silverstein
Abstract: Some embodiments relate to sharpening segments of an image differently based on content in the image. Content based sharpening is performed by a content image processing circuit that receives luminance values of an image and a content map. The content map identifies categories of content in segments of the image. Based on one or more of the identified categories of content, the circuit determines a content factor associated with a pixel. The content factor may also be based on a texture and/or chroma values. A texture value indicates a likelihood of a category of content and is based on detected edges in the image. A chroma value indicates a likelihood of a category of content and is based on color information of the image. The circuit receives the content factor and applies it to a version of the luminance value of the pixel to generate a sharpened version of the luminance value.
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公开(公告)号：US20200320661A1
公开(公告)日：2020-10-08
申请号：US16376414
申请日：2019-04-05
Applicant: Apple Inc.
Inventor： Sheng Lin , David R. Pope , D. Amnon Silverstein
Abstract: Embodiments relate to image signal processors (ISP) that include one or more auto-focus circuits. Each of the auto-focus circuits may be connected to an image sensor and may be separate from a statistics circuit and other image processing pipelines of the ISP. An image sensor may include one or more focus pixels that are used to generate data for auto-focusing. The auto-focus circuit may extract the focus pixel values and generate a signal to control the lens position of the image sensor. Each image sensor may include a separate auto-focus circuit. When other image processing pipelines of the ISP are processing the image data from one image sensor, the auto-focus circuit for another image sensor may continue to generate focus signals that control the lens position of the other image sensor. The other image sensor may be in standby but may continue to remain in focus.
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Patent Agency Ranking
公开(公告)号：US20200053378A1
公开(公告)日：2020-02-13
申请号：US16100809
申请日：2018-08-10
Applicant: Apple Inc.
Inventor： Muge Wang , D. Amnon Silverstein
IPC: H04N19/513 , H04N19/176 , G06T5/00 , G06T3/00
Abstract: Embodiments of the present disclosure relate to autofocusing of images using motion vectors generated by an image signal processor of a device. An image being processed may include one or more motion detection windows associated with a motion vector as well as one or more autofocus windows. An autofocus window that follows a motion detection window by at least a threshold vertical distance may be selected, for example, to account for a period of time or latency for determining a motion vector of the motion detection window. The device may perform autofocusing by shifting location of the selected autofocus window.
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公开(公告)号：US09911177B2
公开(公告)日：2018-03-06
申请号：US14841400
申请日：2015-08-31
Applicant: Apple Inc.
Inventor： Suk Hwan Lim , D. Amnon Silverstein
CPC classification number: G06T3/40 , H04N5/213 , H04N7/0117 , H04N9/70
Abstract: An image processing pipeline may apply chroma suppression to image data at a scaler implemented in the image processing pipeline. Image data collected for an image may be received at a scaler that is encoded in a color space that includes a luminance component and chrominance components. When resampling the image data to generate a different size of the image, the scaler may attenuate the chrominance components of the image data according to the luminance component of the image data. The scaler may also perform dot error correction and convert the image data from one subsampling scheme to another.
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公开(公告)号：US09911174B2
公开(公告)日：2018-03-06
申请号：US14836915
申请日：2015-08-26
Applicant: Apple Inc.
Inventor： Suk Hwan Lim , Christopher L. Mills , D. Amnon Silverstein , David R. Pope , Sheng Lin
CPC classification number: G06T1/20 , G06T1/60 , G06T3/4015 , H04N5/23229 , H04N5/3765 , H04N5/917 , H04N9/045
Abstract: An image processing pipeline may process image data at multiple rates. A stream of raw pixel data collected from an image sensor for an image frame may be processed through one or more pipeline stages of an image signal processor. The stream of raw pixel data may then be converted into a full-color domain and scaled to a data size that is less than an initial data size for the image frame. The converted pixel data may be processed through one or more other pipelines stages and output for storage, further processing, or display. In some embodiments, a back-end interface may be implemented as part of the image signal processor via which image data collected from sources other than the image sensor may be received and processed through various pipeline stages at the image signal processor.
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公开(公告)号：US09811892B1
公开(公告)日：2017-11-07
申请号：US15198414
申请日：2016-06-30
Applicant: Apple Inc.
Inventor： D. Amnon Silverstein , David R. Pope , Simon W. Butler , Maxim W. Smirnov
CPC classification number: G06T5/40 , G06T3/4007 , G06T3/4023 , G06T5/003 , G06T5/20 , G06T5/50 , G06T2207/10024 , G06T2207/20016 , G06T2207/20221
Abstract: Embodiments of the present disclosure generally relate to image signal processing logic, and in particular, to separating an undecimated image signal data to create two components with lower resolution and full-resolution, generating an interpolation guidance information based on the two components created by separation, forming a difference image data representing the difference between the chroma and luma values of each pixel and its neighboring pixels, and merging the processed image data from the processing pipelines with the unprocessed image data using the interpolation guidance information generated. The generation of the interpolation guidance information is based on determining distances between pixel values from a group comprising pixels from interpolation nodes, pixels diagonally located adjacent to the interpolation nodes, pixels horizontally adjacent to the interpolation nodes, and pixels vertically adjacent to the interpolation nodes.
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公开(公告)号：US20170061567A1
公开(公告)日：2017-03-02
申请号：US14836915
申请日：2015-08-26
Applicant: APPLE INC.
Inventor： Suk Hwan Lim , Christopher L. Mills , D. Amnon Silverstein , David R. Pope , Sheng Lin
CPC classification number: G06T1/20 , G06T1/60 , G06T3/4015 , H04N5/23229 , H04N5/3765 , H04N5/917 , H04N9/045
Abstract: An image processing pipeline may process image data at multiple rates. A stream of raw pixel data collected from an image sensor for an image frame may be processed through one or more pipeline stages of an image signal processor. The stream of raw pixel data may then be converted into a full-color domain and scaled to a data size that is less than an initial data size for the image frame. The converted pixel data may be processed through one or more other pipelines stages and output for storage, further processing, or display. In some embodiments, a back-end interface may be implemented as part of the image signal processor via which image data collected from sources other than the image sensor may be received and processed through various pipeline stages at the image signal processor.
Abstract translation: 图像处理流水线可以以多个速率处理图像数据。 从图像帧的图像传感器收集的原始像素数据流可以通过图像信号处理器的一个或多个流水线级进行处理。 然后可以将原始像素数据流转换为全色域并缩放为小于图像帧的初始数据大小的数据大小。 转换的像素数据可以通过一个或多个其他管道级进行处理，并输出用于存储，进一步处理或显示。 在一些实施例中，后端接口可以被实现为图像信号处理器的一部分，通过该图像信号处理器从除图像传感器之外的源收集的图像数据可以通过图像信号处理器处的各种流水线级被接收和处理。
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