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公开(公告)号：US10719918B2
公开(公告)日：2020-07-21
申请号：US16389785
申请日：2019-04-19
Applicant: Apple Inc.
Inventor： Suk Hwan Lim , D. Amnon Silverstein
Abstract: An image processing pipeline may dynamically determine filtering strengths for noise filtering of image data. Statistics may be collected for an image at an image processing pipeline. The statistics may be accessed and evaluated to generate a filter strength model that maps respective filtering strengths to different portions of the image. A noise filter may determine a filtering strength for image data received at the noise filter according to the filter strength model. The noise filter may then apply a filtering technique according to the determined filtering strength.
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公开(公告)号：US20200068129A1
公开(公告)日：2020-02-27
申请号：US16673173
申请日：2019-11-04
Applicant: Apple Inc.
Inventor： D. Amnon Silverstein , Shun Wai Go , Suk Hwan Lim , Timothy J. Millet , Ting Chen , Bin Ni
Abstract: 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：US20200057789A1
公开(公告)日：2020-02-20
申请号：US16664096
申请日：2019-10-25
Applicant: Apple Inc.
Inventor： Suk Hwan Lim , Junji Sugisawa , Muge Wang
Abstract: Embodiments of the present disclosure relate to a configurable convolution engine that receives configuration information to perform convolution or its variant operations on streaming input data of various formats. To process streaming input data, input data of multiple channels are received and stored in an input buffer circuit in an interleaved manner. Data values of the interleaved input data are retrieved and forwarded to multiplier circuits where multiplication with a corresponding filter element of a kernel is performed. Varying number of kernels with different sizes and sparsity can also be used for the convolution operations.
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公开(公告)号：US10440299B2
公开(公告)日：2019-10-08
申请号：US14845659
申请日：2015-09-04
Applicant: Apple Inc.
Inventor： Sheng Lin , D. Amnon Silverstein , David R. Pope , Suk Hwan Lim
Abstract: An image signal processor may include a pixel defect correction component that tracks defect history for frames captured by an image sensor and applies the history when identifying and correcting defective pixels in a frame. The component maintains a defect pixel location table that includes a defect confidence value for pixels of the image sensor. The component identifies defective pixels in a frame, for example by comparing each pixel's value to the values of its neighbor pixels. If a pixel is detected as defective, its defect confidence value may be incremented. Otherwise, the value may be decremented. If a pixel's defect confidence value is over a defect confidence threshold, the pixel is considered defective and thus may be corrected. If a pixel's defect confidence value is under the threshold, the pixel is considered not defective and thus may not be corrected even if the pixel was detected as defective.
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公开(公告)号：US20180324357A1
公开(公告)日：2018-11-08
申请号：US16019906
申请日：2018-06-27
Applicant: Apple Inc.
Inventor： D. Amnon Silverstein , Shun Wai Go , Suk Hwan Lim , Timothy J. Millet , Ting Chen , Bin Ni
CPC classification number: H04N5/23245 , H04N1/212 , H04N5/23216 , H04N5/23232 , H04N5/23293 , H04N7/0122 , H04N9/87
Abstract: 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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Patent Agency Ranking
公开(公告)号：US10070109B2
公开(公告)日：2018-09-04
申请号：US15198354
申请日：2016-06-30
Applicant: Apple Inc.
Inventor： Suk Hwan Lim , Frederic Cao , Touraj Tajbakhsh
Abstract: Embodiments of the present disclosure relate to highlight recovery of a high-resolution image using a single low-resolution image captured at a lower exposure. An example apparatus includes a hue target circuit that receives an input image at a high-resolution including at least one pixel with a clipped color channel. For example, the input image is a Blue sky image with a pixel having clipped Blue channel. The hue target circuit also receives a set of candidate hue maps having a pixel resolution lower than the high-resolution of the input image. The hue target circuit generates a target hue value for the at least one pixel using the pixel information of the set of candidate hue maps. The apparatus also includes a hue recovery circuit that generates a recovered version of the input image by adjusting hue information of the clipped color channel based on the generated target hue.
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公开(公告)号：US20180007332A1
公开(公告)日：2018-01-04
申请号：US15198354
申请日：2016-06-30
Applicant: Apple Inc.
Inventor： Suk Hwan Lim , Frederic Cao , Touraj Tajbakhsh
CPC classification number: H04N9/643 , G06T5/008 , G06T2207/10024 , H04N5/2355 , H04N9/045 , H04N9/68
Abstract: Embodiments of the present disclosure relate to highlight recovery of a high-resolution image using a single low-resolution image captured at a lower exposure. An example apparatus includes a hue target circuit that receives an input image at a high-resolution including at least one pixel with a clipped color channel. For example, the input image is a Blue sky image with a pixel having clipped Blue channel. The hue target circuit also receives a set of candidate hue maps having a pixel resolution lower than the high-resolution of the input image. The hue target circuit generates a target hue value for the at least one pixel using the pixel information of the set of candidate hue maps. The apparatus also includes a hue recovery circuit that generates a recovered version of the input image by adjusting hue information of the clipped color channel based on the generated target hue.
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公开(公告)号：US20180005344A1
公开(公告)日：2018-01-04
申请号：US15198478
申请日：2016-06-30
Applicant: Apple Inc.
Inventor： Suk Hwan Lim , Junji Sugisawa , Muge Wang
CPC classification number: G06F17/153
Abstract: Embodiments of the present disclosure relate to a configurable convolution engine that receives configuration information to perform convolution or its variant operations on streaming input data of various formats. To process streaming input data, input data of multiple channels are received and stored in an input buffer circuit in an interleaved manner. Data values of the interleaved input data are retrieved and forwarded to multiplier circuits where multiplication with a corresponding filter element of a kernel is performed. Varying number of kernels with different sizes and sparsity can also be used for the convolution operations.
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公开(公告)号：US20170134655A1
公开(公告)日：2017-05-11
申请号：US15414866
申请日：2017-01-25
Applicant: Apple Inc.
Inventor： D. Amnon Silverstein , Shun Wai Go , Suk Hwan Lim , Timothy J. Millet , Ting Chen , Bin Ni
IPC: H04N5/232
CPC classification number: H04N5/23245 , H04N1/212 , H04N5/23216 , H04N5/23232 , H04N5/23293 , H04N7/0122 , H04N9/87
Abstract: 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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40.发明申请APPLYING CHROMA SUPPRESSION TO IMAGE DATA IN A SCALER OF AN IMAGE PROCESSING PIPELINE 有权将图像数据应用于图像处理流水线图像中的色度抑制公开(公告)号：US20170061576A1
公开(公告)日：2017-03-02
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.
Abstract translation: 图像处理流水线可以对图像处理流水线中实现的缩放器的图像数据应用色度抑制。 针对图像收集的图像数据可以在编码在包括亮度分量和色度分量的颜色空间中的缩放器处被接收。 当重新采样图像数据以产生图像的不同大小时，缩放器可以根据图像数据的亮度分量来衰减图像数据的色度分量。 缩放器还可以执行点错误校正，并将图像数据从一个子采样方案转换到另一个子采样方案。
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