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公开(公告)号:US10375368B2
公开(公告)日:2019-08-06
申请号:US15198376
申请日:2016-06-30
申请人: Apple Inc.
发明人: D. Amnon Silverstein
摘要: Embodiments of the present disclosure relate to an apparatus for converting image data from a Bayer format image to a four-plane image format using two memory channels. An example apparatus includes an interface for receiving the Bayer image including repeating pixel groups, where each pixel group includes a first pixel type, a second pixel type, a third pixel type, and a fourth pixel type. The apparatus also includes a memory and a circuit to write the Bayer image to the memory as four-plane data. The four-plane data includes pixels of the first type and the third type in the Bayer image that are written via the first memory channel, and pixels of the second type and the fourth type in the Bayer image that are written via the second memory channel. Embodiments also relate to converting three sensor image data to a Bayer format image using the two memory channels.
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公开(公告)号:US20180315172A1
公开(公告)日:2018-11-01
申请号:US15499659
申请日:2017-04-27
申请人: Apple Inc.
CPC分类号: G06T5/10 , G06T7/0002 , G06T2207/20028 , G06T2207/20172
摘要: Embodiments of the present disclosure relate to performing noise reduction on an input image by first filtering the input image based on coarse noise models of pixels and then subsequently filtering the filtered input image based on finer noise models. The finer noise models use the same or more number of neighboring pixels than the coarse noise filters. The first filtering and subsequent filtering of a pixel in the input image use Mahalanobis distances between the pixel and its neighboring pixels. By performing iterations of filtering using more refined noise models, the noise reduction in the input image can be performed more efficiently and effectively.
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公开(公告)号:US10038845B2
公开(公告)日:2018-07-31
申请号:US15414866
申请日:2017-01-25
申请人: Apple Inc.
发明人: D. Amnon Silverstein , Shun Wai Go , Suk Hwan Lim , Timothy J. Millet , Ting Chen , Bin Ni
CPC分类号: H04N5/23245 , H04N1/212 , H04N5/23216 , H04N5/23232 , H04N5/23293 , H04N7/0122 , H04N9/87
摘要: In an embodiment, an electronic device may be configured to capture still frames during video capture, but may capture the still frames in the 4×3 aspect ratio and at higher resolution than the 16×9 aspect ratio video frames. The device may interleave high resolution, 4×3 frames and lower resolution 16×9 frames in the video sequence, and may capture the nearest higher resolution, 4×3 frame when the user indicates the capture of a still frame. Alternatively, the device may display 16×9 frames in the video sequence, and then expand to 4×3 frames when a shutter button is pressed. The device may capture the still frame and return to the 16×9 video frames responsive to a release of the shutter button.
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公开(公告)号:US09992467B2
公开(公告)日:2018-06-05
申请号:US15198907
申请日:2016-06-30
申请人: Apple Inc.
IPC分类号: H04N5/228 , H04N9/73 , H04N5/76 , H04N9/64 , G06T1/20 , H04N5/262 , G06T3/40 , G06T5/00 , G06T5/40
CPC分类号: H04N9/646 , G06T1/20 , G06T3/4015 , G06T5/009 , G06T5/40 , G06T2207/10024 , G06T2207/20072 , H04N5/2628
摘要: Embodiments relate to an architecture of a vision pipe included in an image signal processor. The architecture includes a front-end portion that includes a pair of image signal pipelines that generate an updated luminance image data. A back-end portion of the vision pipe architecture receives the updated luminance images from the front-end portion and performs, in parallel, scaling and various computer vision operations on the updated luminance image data. The back-end portion may repeatedly perform this parallel operation of computer vision operations on successively scaled luminance images to generate a pyramid image.
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公开(公告)号:US20180007241A1
公开(公告)日:2018-01-04
申请号:US15198363
申请日:2016-06-30
申请人: Apple Inc.
发明人: D. Amnon Silverstein , Jaewon Shin
CPC分类号: H04N5/2176 , G06T1/20 , G06T3/4015 , G06T5/002 , G06T5/20 , G06T7/0002 , G06T2207/10024 , G06T2207/20024 , H04N5/3675 , H04N9/045 , H04N2209/045 , H04N2209/046
摘要: Embodiments of the present disclosure relate to a sensor interface circuit that performs scaling of image data in a Bayer pattern without spreading defective pixels across multiple pixels. The sensor interface circuit may include a register circuit storing operating parameters of the sensor interface circuit. The sensor interface circuit includes a scaling circuit with a first defect pixel detection circuit to detect a first defective pixel in an input image by analyzing pixels in a line of an input image data along a first direction. A first scaling circuit is coupled to the first defect pixel detection circuit and generates a scaled line of pixels representing the line of the input image scaled along the first direction according to the operating parameters.
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公开(公告)号:US20180005352A1
公开(公告)日:2018-01-04
申请号:US15198376
申请日:2016-06-30
申请人: Apple Inc.
发明人: D. Amnon Silverstein
CPC分类号: H04N9/76 , G06T3/4015 , H04N5/332 , H04N5/365 , H04N9/045
摘要: Embodiments of the present disclosure relate to an apparatus for converting image data from a Bayer format image to a four-plane image format using two memory channels. An example apparatus includes an interface for receiving the Bayer image including repeating pixel groups, where each pixel group includes a first pixel type, a second pixel type, a third pixel type, and a fourth pixel type. The apparatus also includes a memory and a circuit to write the Bayer image to the memory as four-plane data. The four-plane data includes pixels of the first type and the third type in the Bayer image that are written via the first memory channel, and pixels of the second type and the fourth type in the Bayer image that are written via the second memory channel. Embodiments also relate to converting three sensor image data to a Bayer format image using the two memory channels.
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公开(公告)号:US09860429B1
公开(公告)日:2018-01-02
申请号:US15198363
申请日:2016-06-30
申请人: Apple Inc.
发明人: D. Amnon Silverstein , Jaewon Shin
CPC分类号: H04N5/2176 , G06T1/20 , G06T3/4015 , G06T5/002 , G06T5/20 , G06T7/0002 , G06T2207/10024 , G06T2207/20024 , H04N5/3675 , H04N9/045 , H04N2209/045 , H04N2209/046
摘要: Embodiments of the present disclosure relate to a sensor interface circuit that performs scaling of image data in a Bayer pattern without spreading defective pixels across multiple pixels. The sensor interface circuit may include a register circuit storing operating parameters of the sensor interface circuit. The sensor interface circuit includes a scaling circuit with a first defect pixel detection circuit to detect a first defective pixel in an input image by analyzing pixels in a line of an input image data along a first direction. A first scaling circuit is coupled to the first defect pixel detection circuit and generates a scaled line of pixels representing the line of the input image scaled along the first direction according to the operating parameters.
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公开(公告)号:US09756266B2
公开(公告)日:2017-09-05
申请号:US14977384
申请日:2015-12-21
申请人: Apple Inc.
CPC分类号: H04N9/04511 , G06T3/4015 , H04N5/2628 , H04N9/07 , H04N9/646 , H04N2209/046
摘要: An input rescale module that performs cross-color correlated downscaling of sensor data in the horizontal and vertical dimensions. The module may perform a first-pass demosaic of sensor data, apply horizontal and vertical scalers to resample and downsize the data in the horizontal and vertical dimensions, and then remosaic the data to provide horizontally and vertically downscaled sensor data as output for additional image processing. The module may, for example, act as a front end scaler for an image signal processor (ISP). The demosaic performed by the module may be a relatively simple demosaic, for example a demosaic function that works on 3×3 blocks of pixels. The front end of module may receive and process sensor data at two pixels per clock (ppc); the horizontal filter component reduces the sensor data down to one ppc for downstream components of the input rescale module and for the ISP pipeline.
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公开(公告)号:US20170070689A1
公开(公告)日:2017-03-09
申请号:US14848276
申请日:2015-09-08
申请人: Apple Inc.
发明人: D. Amnon Silverstein , Sheng Lin , David R. Pope , Suk Hwan Lim
CPC分类号: H04N5/3572 , G06T5/008 , H01L27/14623 , H01L27/14643 , H04N5/3651 , H04N5/3696 , H04N9/646
摘要: Systems and methods for automatic lens flare compensation may include a non-uniformity detector configured to operate on pixel data for an image in an image sensor color pattern. The non-uniformity detector may detect a non-uniformity in the pixel data in a color channel of the image sensor color pattern. The non-uniformity detector may generate output including location and magnitude values of the non-uniformity. A lens flare detector may determine, based at least on the location and magnitude values, whether the output of the non-uniformity detector corresponds to a lens flare in the image. In some embodiments, the lens flare detector may generate, in response to determining that the output corresponds to the lens flare, a representative map of the lens flare. A lens flare corrector may determine one or more pixel data correction values corresponding to the lens flare and apply the pixel data correction values to the pixel data.
摘要翻译: 用于自动镜头光斑补偿的系统和方法可以包括被配置为对图像传感器颜色图案中的图像的像素数据进行操作的非均匀性检测器。 不均匀性检测器可以检测图像传感器颜色图案的颜色通道中的像素数据的不均匀性。 不均匀性检测器可以产生包括不均匀性的位置和幅度值的输出。 透镜闪光检测器可以至少基于位置和幅度值来确定不均匀性检测器的输出是否对应于图像中的透镜闪光。 在一些实施例中,透镜光斑检测器可以响应于确定输出对应于透镜闪光而产生透镜的代表性地图闪光。 透镜闪光校正器可以确定与透镜光斑相对应的一个或多个像素数据校正值,并将像素数据校正值应用于像素数据。
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公开(公告)号:US09591219B2
公开(公告)日:2017-03-07
申请号:US15089784
申请日:2016-04-04
申请人: Apple Inc.
发明人: D. Amnon Silverstein , Shun Wai Go , Suk Hwan Lim , Timothy J. Millet , Ting Chen , Bin Ni
CPC分类号: H04N5/23245 , H04N1/212 , H04N5/23216 , H04N5/23232 , H04N5/23293 , H04N7/0122 , H04N9/87
摘要: In an embodiment, an electronic device may be configured to capture still frames during video capture, but may capture the still frames in the 4×3 aspect ratio and at higher resolution than the 16×9 aspect ratio video frames. The device may interleave high resolution, 4×3 frames and lower resolution 16×9 frames in the video sequence, and may capture the nearest higher resolution, 4×3 frame when the user indicates the capture of a still frame. Alternatively, the device may display 16×9 frames in the video sequence, and then expand to 4×3 frames when a shutter button is pressed. The device may capture the still frame and return to the 16×9 video frames responsive to a release of the shutter button.
摘要翻译: 在一个实施例中,电子设备可以被配置为在视频捕获期间捕获静止帧,但是可以以比4×3宽高比和高于16×9宽高比视频帧的分辨率捕获静止帧。 该装置可以在视频序列中交错高分辨率,4×3帧和较低分辨率的16×9帧,并且当用户指示拍摄静止帧时可以捕获最近的较高分辨率,4×3帧。 或者,设备可以在视频序列中显示16×9帧,然后当按下快门按钮时,扩展为4×3帧。 该装置可以捕获静止帧并响应于快门按钮的释放而返回到16×9视频帧。
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