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公开(公告)号：US10375310B2
公开(公告)日：2019-08-06
申请号：US15942983
申请日：2018-04-02
Applicant: Google LLC
Inventor： Wei Hong , Rodrigo Carceroni
Abstract: In general, the subject matter can be embodied in methods, systems, and program products for identifying, by a computing system and using first and second frames of a video, a transformation that indicates movement of a camera with respect to the frames. The computing system generates a modified transformation so that the transformation is less representative of recent movement. The computing system uses the transformation and the modified transformation to generate a second transformation. The computing system identifies an anticipated distortion that would be present in a stabilized version of the second frame. The computing system determines an amount by which to reduce a stabilizing effect. The computing system applies the second transformation to the second frame to stabilize the second frame, where the stabilizing effect has been reduced based on the determined amount by which to reduce the stabilizing effect.
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公开(公告)号：US20180227492A1
公开(公告)日：2018-08-09
申请号：US15942983
申请日：2018-04-02
Applicant: Google LLC
Inventor： Wei Hong , Rodrigo Carceroni
CPC classification number: H04N5/23248 , G06T3/0093 , G06T5/003 , G06T5/10 , G06T5/20 , G06T7/246 , G06T2207/10016 , H04N5/23229 , H04N5/23296
Abstract: In general, the subject matter can be embodied in methods, systems, and program products for identifying, by a computing system and using first and second frames of a video, a transformation that indicates movement of a camera with respect to the frames. The computing system generates a modified transformation so that the transformation is less representative of recent movement. The computing system uses the transformation and the modified transformation to generate a second transformation. The computing system identifies an anticipated distortion that would be present in a stabilized version of the second frame. The computing system determines an amount by which to reduce a stabilizing effect. The computing system applies the second transformation to the second frame to stabilize the second frame, where the stabilizing effect has been reduced based on the determined amount by which to reduce the stabilizing effect.
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公开(公告)号：US11625840B2
公开(公告)日：2023-04-11
申请号：US17185054
申请日：2021-02-25
Applicant: Google LLC
Inventor： Wei Hong , Marius Renn , Rodrigo Carceroni
Abstract: In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products for detecting motion in images. A computing system receives first and second images that were captured by a camera. The computing system generates, using the images, a mathematical transformation that indicates movement of the camera from the first image to the second image. The computing system generates, using the first image and the mathematical transformation, a modified version of the first image that presents the scene that was captured by the first image from a position of the camera when the second image was captured. The computing system determines a portion of the first image or second image at which a position of an object in the scene moved, by comparing the modified version of the first image to the second image.
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公开(公告)号：US11595580B2
公开(公告)日：2023-02-28
申请号：US17751274
申请日：2022-05-23
Applicant: Google LLC
Inventor： Wei Hong , Marius Renn , Radford Ray Juang
IPC: H04N5/232 , H04N5/235 , G06F16/58 , G11B27/031 , G11B27/28
Abstract: The present disclosure provides systems and methods that use and/or generate image files according to a novel microvideo image format. For example, a microvideo can be a file that contains both a still image and a brief video. The microvideo can include multiple tracks, such as, for example, a separate video track, audio track, and/or one or more metadata tracks. As one example track, the microvideo can include a motion data track that stores motion data that can be used (e.g., at file runtime) to stabilize the video frames. A microvideo generation system included in an image capture device can determine a trimming of the video on-the-fly as the image capture device captures the microvideo.
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Patent Agency Ranking
公开(公告)号：US11343429B2
公开(公告)日：2022-05-24
申请号：US16624952
申请日：2018-07-12
Applicant: Google LLC
Inventor： Wei Hong , Radford Ray Juang , Marius Renn
IPC: H04N5/232 , H04N5/235 , G06F16/58 , G11B27/031 , G11B27/28
Abstract: The present disclosure provides systems and methods that use and/or generate image files according to a novel microvideo image format. For example, a microvideo can be a file that contains both a still image and a brief video. The microvideo can include multiple tracks, such as, for example, a separate video track, audio track, and/or one or more metadata tracks. As one example track, the microvideo can include a motion data track that stores motion data that can be used (e.g., at file runtime) to stabilize the video frames. A microvideo generation system included in an image capture device can determine a trimming of the video on-the-fly as the image capture device captures the microvideo.
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公开(公告)号：US11006122B2
公开(公告)日：2021-05-11
申请号：US16772069
申请日：2019-03-08
Applicant: Google LLC
Inventor： Wei Hong , Shengyi Lin
IPC: H04N5/232 , G06T7/20 , H04N19/137 , H04N19/30 , H04N19/513 , G06T3/40 , G06T5/00 , H04N19/176
Abstract: A computer-implemented method, system, or computer-readable medium may include estimating local motion of an input video frame of an input video by computing a local motion vector corresponding to a respective candidate pixel patch from among one or more candidate pixel patches within the input video frame. Global motion may be estimated by computing a global motion vector. One or more subject motion vectors may be computed based on a corresponding local motion vector and the global motion vector. A number of static frames of the video may be identified. The input video may be determined to be a static video if a ratio of the number of static frames to a number of the video frames in the input video meets a static frame threshold and determining that the input video is a motion video if the ratio fails to meet the static frame threshold.
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公开(公告)号：US20210084271A1
公开(公告)日：2021-03-18
申请号：US16751853
申请日：2020-01-24
Applicant: Google LLC
Inventor： Li Wei , Wei Hong , Marius Renn
Abstract: Techniques described herein include receiving a first video frame including a first color map, receiving at least one second video frame, receiving a third video frame including a second color map, generating at least one color map based on the first color map and the second color map, associating the at least one third color map with the at least one second frame, the associated at least one second frame being sequentially positioned between the first frame and the second frame, tone correcting the associated at least one second frame based on the at least one generated third color map and color correcting the at least one second frame based on the at least one generated third color map.
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公开(公告)号：US20200154053A1
公开(公告)日：2020-05-14
申请号：US16743795
申请日：2020-01-15
Applicant: Google LLC
Inventor： Radford Juang , Chia-Kai Liang , Wei Hong , Senpo Hu , Shengyi Lin , Erik Gross
IPC: H04N5/232
Abstract: Implementations generally relate to locking a camera onto a sub-region to capture images of the sub-region with a moving camera. In some implementations, a method includes determining a first region in a scene detected by a camera while the camera is in a first physical position. The method further includes receiving user input to target a sub-region within the first capture region of the scene and capturing the first image of the sub-region while the camera is in the first physical position. The first image is displayed in a fixed orientation on a preview portion of a display screen. The camera is moved to a second physical position and a second capture region of the scene is detected. The method further includes capturing a second image is of the sub-region and displaying it in the fixed orientation on the preview portion of the display screen. The second image is effective to inform a user of whether capture of the sub-region is altered by camera movement.
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公开(公告)号：US20180293741A1
公开(公告)日：2018-10-11
申请号：US16005172
申请日：2018-06-11
Applicant: Google LLC
Inventor： Wei Hong , Marius Renn , Rodrigo Carceroni
Abstract: In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products for detecting motion in images. A computing system receives first and second images that were captured by a camera. The computing system generates, using the images, a mathematical transformation that indicates movement of the camera from the first image to the second image. The computing system generates, using the first image and the mathematical transformation, a modified version of the first image that presents the scene that was captured by the first image from a position of the camera when the second image was captured. The computing system determines a portion of the first image or second image at which a position of an object in the scene moved, by comparing the modified version of the first image to the second image.
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