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公开(公告)号：US11145075B2
公开(公告)日：2021-10-12
申请号：US16767401
申请日：2019-10-04
Applicant: Google LLC
Inventor： Julien Valentin , Onur G. Guleryuz , Mira Leung , Maksym Dzitsiuk , Jose Pascoal , Mirko Schmidt , Christoph Rhemann , Neal Wadhwa , Eric Turner , Sameh Khamis , Adarsh Prakash Murthy Kowdle , Ambrus Csaszar , João Manuel Castro Afonso , Jonathan T. Barron , Michael Schoenberg , Ivan Dryanovski , Vivek Verma , Vladimir Tankovich , Shahram Izadi , Sean Ryan Francesco Fanello , Konstantine Nicholas John Tsotsos
Abstract: A handheld user device includes a monocular camera to capture a feed of images of a local scene and a processor to select, from the feed, a keyframe and perform, for a first image from the feed, stereo matching using the first image, the keyframe, and a relative pose based on a pose associated with the first image and a pose associated with the keyframe to generate a sparse disparity map representing disparities between the first image and the keyframe. The processor further is to determine a dense depth map from the disparity map using a bilateral solver algorithm, and process a viewfinder image generated from a second image of the feed with occlusion rendering based on the depth map to incorporate one or more virtual objects into the viewfinder image to generate an AR viewfinder image. Further, the processor is to provide the AR viewfinder image for display.
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公开(公告)号：US10237527B2
公开(公告)日：2019-03-19
申请号：US16110912
申请日：2018-08-23
Applicant: Google LLC
Inventor： Jonathan T. Barron , Yun-Ta Tsai
Abstract: A computing device may obtain an input image. The input image may have a white point represented by chrominance values that define white color in the input image. Possibly based on colors of the input image, the computing device may generate a two-dimensional chrominance histogram of the input image. The computing device may convolve the two-dimensional chrominance histogram with a filter to create a two-dimensional heat map. Entries in the two-dimensional heat map may represent respective estimates of how close respective tints corresponding to the respective entries are to the white point of the input image. The computing device may select an entry in the two-dimensional heat map that represents a particular value that is within a threshold of a maximum value in the heat map, and based on the selected entry, tint the input image to form an output image.
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公开(公告)号：US12094054B2
公开(公告)日：2024-09-17
申请号：US17639967
申请日：2020-05-04
Applicant: GOOGLE LLC
Inventor： Yun-Ta Tsai , Xiuming Zhang , Jonathan T. Barron , Sean Fanello , Tiancheng Sun , Tianfan Xue
CPC classification number: G06T15/506 , G06N3/084 , G06T15/04 , G06T15/205 , G06T2200/04 , G06T2200/08 , G06T2200/24
Abstract: Examples relate to implementations of a neural light transport. A computing system may obtain data indicative of a plurality of UV texture maps and a geometry of an object. Each UV texture map depicts the object from a perspective of a plurality of perspectives. The computing system may train a neural network to learn a light transport function using the data. The light transport function may be a continuous function that specifies how light interacts with the object when the object is viewed from the plurality of perspectives. The computing system may generate an output UV texture map that depicts the object from a synthesized perspective based on an application of the light transport function by the trained neural network.
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公开(公告)号：US10091479B2
公开(公告)日：2018-10-02
申请号：US15703571
申请日：2017-09-13
Applicant: Google LLC
Inventor： Jonathan T. Barron , Yun-Ta Tsai
Abstract: A computing device may obtain an input image. The input image may have a white point represented by chrominance values that define white color in the input image. Possibly based on colors of the input image, the computing device may generate a two-dimensional chrominance histogram of the input image. The computing device may convolve the two-dimensional chrominance histogram with a filter to create a two-dimensional heat map. Entries in the two-dimensional heat map may represent respective estimates of how close respective tints corresponding to the respective entries are to the white point of the input image. The computing device may select an entry in the two-dimensional heat map that represents a particular value that is within a threshold of a maximum value in the heat map, and based on the selected entry, tint the input image to form an output image.
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公开(公告)号：US20240320808A1
公开(公告)日：2024-09-26
申请号：US18734000
申请日：2024-06-05
Applicant: Google LLC
Inventor： Yicheng Wu , Qiurui He , Tianfan Xue , Rahul Garg , Jiawen Chen , Jonathan T. Barron
CPC classification number: G06T5/80 , G06T3/40 , G06T5/10 , G06T5/20 , G06T7/80 , G06T2207/20081 , G06T2207/20084
Abstract: A method includes obtaining an input image that contains a particular representation of lens flare, and processing the input image by a machine learning model to generate a de-flared image that includes the input image with at least part of the particular representation of lens flare removed. The machine learning (ML) model may be trained by generating training images that combine respective baseline images with corresponding lens flare images. For each respective training image, a modified image may be determined by processing the respective training image by the ML model, and a loss value may be determined based on a loss function comparing the modified image to a corresponding baseline image used to generate the respective training image. Parameters of the ML model may be adjusted based on the loss value determined for each respective training image and the loss function.
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Patent Agency Ranking
公开(公告)号：US20220375045A1
公开(公告)日：2022-11-24
申请号：US17625994
申请日：2020-11-09
Applicant: Google LLC
Inventor： Yicheng Wu , Qiurui He , Tianfan Xue , Rahul Garg , Jiawen Chen , Jonathan T. Barron
Abstract: A method includes obtaining an input image that contains a particular representation of lens flare, and processing the input image by a machine learning model to generate a de-flared image that includes the input image with at least part of the particular representation of lens flare removed. The machine learning (ML) model may be trained by generating training images that combine respective baseline images with corresponding lens flare images. For each respective training image, a modified image may be determined by processing the respective training image by the ML model, and a loss value may be determined based on a loss function comparing the modified image to a corresponding baseline image used to generate the respective training image. Parameters of the ML model may be adjusted based on the loss value determined for each respective training image and the loss function.
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公开(公告)号：US20220375042A1
公开(公告)日：2022-11-24
申请号：US17626069
申请日：2020-11-13
Applicant: Google LLC
Inventor： Rahul Garg , Neal Wadhwa , Pratul Preeti Srinivasan , Tianfan Xue , Jiawen Chen , Shumian Xin , Jonathan T. Barron
Abstract: A method includes obtaining dual-pixel image data that includes a first sub-image and a second sub-image, and generating an in-focus image, a first kernel corresponding to the first sub-image, and a second kernel corresponding to the second sub-image. A loss value may be determined using a loss function that determines a difference between (i) a convolution of the first sub-image with the second kernel and (ii) a convolution of the second sub-image with the first kernel, and/or a sum of (i) a difference between the first sub-image and a convolution of the in-focus image with the first kernel and (ii) a difference between the second sub-image and a convolution of the in-focus image with the second kernel. Based on the loss value and the loss function, the in-focus image, the first kernel, and/or the second kernel, may be updated and displayed.
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公开(公告)号：US12033309B2
公开(公告)日：2024-07-09
申请号：US17625994
申请日：2020-11-09
Applicant: Google LLC
Inventor： Yicheng Wu , Qiurui He , Tianfan Xue , Rahul Garg , Jiawen Chen , Jonathan T. Barron
CPC classification number: G06T5/80 , G06T3/40 , G06T5/10 , G06T5/20 , G06T7/80 , G06T2207/20081 , G06T2207/20084
Abstract: A method includes obtaining an input image that contains a particular representation of lens flare, and processing the input image by a machine learning model to generate a de-flared image that includes the input image with at least part of the particular representation of lens flare removed. The machine learning (ML) model may be trained by generating training images that combine respective baseline images with corresponding lens flare images. For each respective training image, a modified image may be determined by processing the respective training image by the ML model, and a loss value may be determined based on a loss function comparing the modified image to a corresponding baseline image used to generate the respective training image. Parameters of the ML model may be adjusted based on the loss value determined for each respective training image and the loss function.
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公开(公告)号：US12008738B2
公开(公告)日：2024-06-11
申请号：US17626069
申请日：2020-11-13
Applicant: Google LLC
Inventor： Rahul Garg , Neal Wadhwa , Pratul Preeti Srinivasan , Tianfan Xue , Jiawen Chen , Shumian Xin , Jonathan T. Barron
Abstract: A method includes obtaining dual-pixel image data that includes a first sub-image and a second sub-image, and generating an in-focus image, a first kernel corresponding to the first sub-image, and a second kernel corresponding to the second sub-image. A loss value may be determined using a loss function that determines a difference between (i) a convolution of the first sub-image with the second kernel and (ii) a convolution of the second sub-image with the first kernel, and/or a sum of (i) a difference between the first sub-image and a convolution of the in-focus image with the first kernel and (ii) a difference between the second sub-image and a convolution of the in-focus image with the second kernel. Based on the loss value and the loss function, the in-focus image, the first kernel, and/or the second kernel, may be updated and displayed.
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公开(公告)号：US20230351560A1
公开(公告)日：2023-11-02
申请号：US17786841
申请日：2019-12-23
Applicant: Google LLC
Inventor： David Jacobs , Yun-Ta Tsai , Jonathan T. Barron , Xuaner Zhang
CPC classification number: G06T5/008 , G06T5/50 , G06T2207/20081 , G06T2207/30201
Abstract: Systems and methods described herein may relate to potential methods of training a machine learning model to be implemented on a mobile computing device configured to capture, adjust, and/or store image frames. An example method includes supplying a first image frame of a subject in a setting lit within a first lighting environment and supplying a second image frame of the subject lit within a second lighting environment. The method further includes determining a mask. Additionally, the method includes combining the first image frame and the second image frame according to the mask to generate a synthetic image and assigning a score to the synthetic image. The method also includes training a machine learning model based on the assigned score to adjust a captured image based on the synthetic image.
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