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1. 发明授权

US10824911B2 Combining independent solutions to an image or video processing task 有权
公开(公告)号：US10824911B2
公开(公告)日：2020-11-03
申请号：US15973184
申请日：2018-05-07
申请人： GoPro, Inc.
发明人： Balineedu Chowdary Adsumilli , Ryan Lustig
IPC分类号： G06K9/62 , G06K9/00 , G06N20/00 , G06N3/12 , G06N7/00
摘要： An algorithm for performing an image or video processing task is generated that may be used to combine a plurality of different independent solutions to the image or video processing task in an optimized manner. A plurality of base algorithms may be applied to a training set of images or video and a first generation of different combining algorithms may be applied to combine the respective solutions from each of the respective base algorithms into respective combined solutions. The respective combined solutions may be evaluated to generate respective fitness scores representing measures of how well the plurality of different combining algorithms each perform the image or video processing task. The algorithms may be iteratively updated to generate an optimized combining algorithm that may be applied to an input image or video.

2. 发明申请

US20190387167A1 IMAGE STITCHING IN A MULTI-CAMERA ARRAY 审中-公开
公开(公告)号：US20190387167A1
公开(公告)日：2019-12-19
申请号：US16505542
申请日：2019-07-08
申请人： GoPro, Inc.
发明人： Balineedu Chowdary Adsumilli , Scott Patrick Campbell
IPC分类号： H04N5/232
摘要： Images captured by multi-camera arrays with overlap regions can be stitched together using image stitching operations. An image stitching operation can be selected for use in stitching images based on a number of factors. An image stitching operation can be selected based on a view window location of a user viewing the images to be stitched together. An image stitching operation can also be selected based on a type, priority, or depth of image features located within an overlap region. Finally, an image stitching operation can be selected based on a likelihood that a particular image stitching operation will produce visible artifacts. Once a stitching operation is selected, the images corresponding to the overlap region can be stitched using the stitching operation, and the stitched image can be stored for subsequent access.

3. 发明授权

US10482574B2 Systems and methods for multi-resolution image stitching 有权
公开(公告)号：US10482574B2
公开(公告)日：2019-11-19
申请号：US15643123
申请日：2017-07-06
申请人： GoPro, Inc.
发明人： Balineedu Chowdary Adsumilli , Adeel Abbas
IPC分类号： G06T3/40 , H04N5/232
摘要： Systems and methods for providing panoramic image and/or video content using multi-resolution stitching. Panoramic content may include stitched spherical (360-degree) images and/or VR video. In some implementations, multi-resolution stitching functionality may be embodied in a spherical image capture device that may include two lenses configured to capture pairs of hemispherical images. The capture device may obtain images (e.g., representing left and right hemispheres) that may be characterized by 180-degree (or greater) field of view. Source images may be combined using multi-resolution stitching methodology. Source images may be transformed to obtain multiple image components characterized by two or more image resolutions. The stitched image may be encoded using selective encoding methodology including: partitioning source images into a low resolution/frequency and a high resolution/frequency components; stitching low resolution/frequency components using coarse stitching operation, stitching high resolution/high frequency components using a refined stitch operation; combining stitched LF components and stitched HF components.

4. 发明授权

US10291910B2 Systems and methods for spatially adaptive video encoding 有权
公开(公告)号：US10291910B2
公开(公告)日：2019-05-14
申请号：US15334213
申请日：2016-10-25
申请人： GoPro, Inc.
发明人： Balineedu Chowdary Adsumilli , Adeel Abbas , David Newman
IPC分类号： H04N19/124 , H04N19/154 , H04N19/17 , H04N21/218 , H04N21/2343 , H04N21/81 , H04N19/167
摘要： Systems and methods for providing video content using spatially adaptive video encoding. Panoramic and/or virtual reality content may be viewed by a client device using a viewport with viewing dimension(s) configured smaller than available dimension(s) of the content. Client device may include a portable media device characterized by given energy and/or computational resources. Video content may be encoded using spatially varying encoding. For image playback, portions of panoramic image may be pre-encoded using multiple quality bands. Pre-encoded image portions, matching the viewport, may be provided and reduce computational and/or energy load on the client device during consumption of panoramic content. Quality distribution may include gradual quality transition area allowing for small movements of the viewport without triggering image re-encoding. Larger movements of the viewport may automatically trigger transition to another spatial encoding distribution.

5. 发明授权

US10096082B2 Upscaling and downscaling in a camera architecture 有权
公开(公告)号：US10096082B2
公开(公告)日：2018-10-09
申请号：US15727568
申请日：2017-10-07
申请人： GoPro, Inc.
发明人： Scott Patrick Campbell , Paul Mobbs , Balineedu Chowdary Adsumilli , Sumit Chawla
IPC分类号： H04N5/232 , G06T1/20 , G06T3/40 , H04N5/374 , H04N19/102 , H04N9/804 , H04N19/42
摘要： An image capture accelerator performs accelerated processing of image data. In one embodiment, the image capture accelerator includes accelerator circuitry including a pre-processing engine and a compression engine. The pre-processing engine is configured to perform accelerated processing on received image data, and the compression engine is configured to compress processed image data received from the pre-processing engine. In one embodiment, the image capture accelerator further includes a demultiplexer configured to receive image data captured by an image sensor array implemented within, for example, an image sensor chip. The demultiplexer may output the received image data to an image signal processor when the image data is captured by the image sensor array in a standard capture mode, and may output the received image data to the accelerator circuitry when the image data is captured by the image sensor array in an accelerated capture mode.

6. 发明授权

US10003768B2 Apparatus and methods for frame interpolation based on spatial considerations 有权
公开(公告)号：US10003768B2
公开(公告)日：2018-06-19
申请号：US15278976
申请日：2016-09-28
申请人： GoPro, Inc.
发明人： Balineedu Chowdary Adsumilli , Ryan Lustig
IPC分类号： H04N7/01
CPC分类号： H04N7/0137 , G06T3/40 , H04N7/0127 , H04N7/014
摘要： Apparatus and methods for the generation of interpolated frames of video data. In one embodiment, a computerized apparatus is disclosed that includes a video data interface configured to receive frames of video data; a processing apparatus in data communication with the video data interface; and a storage apparatus in data communication with the processing apparatus. The computerized apparatus is further configured to: receive frames of captured video data; retrieve capture parameters associated with the frames of captured video data; generate optical flow parameters from the frames of captured video data; ascribe differing weights based on the capture parameters and/or the optical flow parameters; generate frames of interpolated video data for the frames of captured video data based at least in part on the ascribed weights; and compile a resultant video stream using the frames of interpolated video data and the frames of captured video data.

7. 发明授权

US09992502B2 Apparatus and methods for video compression using multi-resolution scalable coding 有权
公开(公告)号：US09992502B2
公开(公告)日：2018-06-05
申请号：US15250748
申请日：2016-08-29
申请人： GoPro, Inc.
发明人： Adeel Abbas , Balineedu Chowdary Adsumilli , David Newman
IPC分类号： H04N19/30 , H04N19/59 , H04N19/146 , H04N19/187 , H04N19/167 , H04N19/29
CPC分类号： H04N19/30 , H04N19/146 , H04N19/167 , H04N19/187 , H04N19/29 , H04N19/59
摘要： Apparatus and methods for digital video data compression via a scalable, multi-resolution approach. In one embodiment, the video content may be encoded using a multi-resolution and/or multi-quality scalable coding approach that reduces computational and/or energy load on a client device. In one implementation, a low fidelity image is obtained based on a first full resolution image. The low fidelity image may be encoded to obtain a low fidelity bitstream. A second full resolution image may be obtained based on the low fidelity bitstream. A portion of a difference image obtained based on the second full resolution image and the first full resolution may be encoded to obtain a high fidelity bitstream. The low fidelity bitstream and the high fidelity bitstream may be provided to e.g., a receiving device.

8. 发明申请

US20180130172A1 Upscaling and downscaling in a camera architecture 审中-公开
公开(公告)号：US20180130172A1
公开(公告)日：2018-05-10
申请号：US15727568
申请日：2017-10-07
申请人： GoPro, Inc.
发明人： Scott Patrick Campbell , Paul Mobbs , Balineedu Chowdary Adsumilli , Sumit Chawla
IPC分类号： G06T1/20 , H04N5/232 , G06T3/40 , H04N5/374 , H04N19/42 , H04N9/804
CPC分类号： G06T1/20 , G06T3/4015 , H04N1/6019 , H04N1/6027 , H04N5/232 , H04N5/23212 , H04N5/23216 , H04N5/23222 , H04N5/23229 , H04N5/23241 , H04N5/23245 , H04N5/23254 , H04N5/23267 , H04N5/23296 , H04N5/2353 , H04N5/247 , H04N5/374 , H04N5/378 , H04N9/045 , H04N9/09 , H04N9/735 , H04N9/8042 , H04N19/102 , H04N19/12 , H04N19/132 , H04N19/156 , H04N19/164 , H04N19/172 , H04N19/186 , H04N19/1883 , H04N19/33 , H04N19/42 , H04N19/423 , H04N19/44 , H04N19/517 , H04N19/63 , H04N19/91
摘要： An image capture accelerator performs accelerated processing of image data. In one embodiment, the image capture accelerator includes accelerator circuitry including a pre-processing engine and a compression engine. The pre-processing engine is configured to perform accelerated processing on received image data, and the compression engine is configured to compress processed image data received from the pre-processing engine. In one embodiment, the image capture accelerator further includes a demultiplexer configured to receive image data captured by an image sensor array implemented within, for example, an image sensor chip. The demultiplexer may output the received image data to an image signal processor when the image data is captured by the image sensor array in a standard capture mode, and may output the received image data to the accelerator circuitry when the image data is captured by the image sensor array in an accelerated capture mode.

9. 发明授权

US09877036B2 Inter frame watermark in a digital video 有权
公开(公告)号：US09877036B2
公开(公告)日：2018-01-23
申请号：US14598135
申请日：2015-01-15
申请人： GoPro, Inc.
发明人： Balineedu Chowdary Adsumilli
IPC分类号： H04N19/467 , H04N19/63 , H04N1/32 , G06T1/00
CPC分类号： H04N19/467 , G06T1/0028 , G06T2201/0052 , G06T2201/0083 , G06T2201/0202 , H04N1/32187 , H04N1/32277 , H04N1/32288 , H04N19/63
摘要： Watermark data is converted to watermark coefficients, which may be embedded in an image by converting the image to a frequency domain, embedding the watermark in image coefficients corresponding to medium-frequency components, and converting the modified coefficients to the spatial domain. The watermark data is extracted from the modified image by converting the modified image to a frequency domain, extracting the watermark coefficients from the image coefficients, and determining the watermark data from the watermark coefficients. The watermark data may be truncated image data bits such as truncated least significant data bits. After extraction from the watermark, the truncated image data bits may be combined with data bits representing the original image to increase the bit depth of the image. Watermark data may include audio data portions corresponding to a video frame, reference frames temporally proximate to a video frame, high-frequency content, sensor calibration information, or other image data.

10. 发明申请

US20170295318A1 AUTOMATIC GENERATION OF VIDEO FROM SPHERICAL CONTENT USING AUDIO/VISUAL ANALYSIS 审中-公开
公开(公告)号：US20170295318A1
公开(公告)日：2017-10-12
申请号：US15595881
申请日：2017-05-15
申请人： GOPRO, INC.
发明人： Timothy MacMillan , David A. Newman , Balineedu Chowdary Adsumilli
IPC分类号： H04N5/232 , G06F17/30 , G06T3/00 , G06T7/246 , H04N13/00 , H04N21/234 , H04N21/233 , G03B37/04 , G06K9/00 , H04L29/06
CPC分类号： H04N5/23238 , G03B37/04 , G06F17/30858 , G06K9/00281 , G06K9/00355 , G06K9/00711 , G06T3/0062 , G06T7/246 , G06T2207/10016 , G06T2207/30201 , H04L65/00 , H04L65/4084 , H04L65/602 , H04L67/42 , H04N13/106 , H04N21/233 , H04N21/23418
摘要： A spherical content capture system captures spherical video content. A spherical video sharing platform enables users to share the captured spherical content and enables users to access spherical content shared by other users. In one embodiment, captured metadata or video/audio processing is used to identify content relevant to a particular user based on time and location information. The platform can then generate an output video from one or more shared spherical content files relevant to the user. The output video may include a non-spherical reduced field of view such as those commonly associated with conventional camera systems. Particularly, relevant sub-frames having a reduced field of view may be extracted from each frame of spherical video to generate an output video that tracks a particular individual or object of interest.

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