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公开(公告)号：US20220122230A1
公开(公告)日：2022-04-21
申请号：US17646684
申请日：2021-12-31
发明人： Tingniao WANG , Xiaomu LIU
摘要： A method for video stabilization may include obtaining a target frame of a video; obtaining a plurality of first feature points associated with the target frame; determining whether the plurality of first feature points include at least one feature point relating to a moving object in the video; in response to a determination that the plurality of first feature points include at least one feature point relating to the moving object in the video, removing the at least one feature point relating to the moving object; performing video stabilization to the target frame based on remaining first feature points of the plurality of first feature points; determining, in the target frame, at least one supplement feature point; and designating the at least one supplement feature point and the remaining first feature points as second feature points associated with a frame immediately following the target frame in the video.
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公开(公告)号：US11301668B2
公开(公告)日：2022-04-12
申请号：US16925392
申请日：2020-07-10
摘要： A method and system for face alignment. The method may include obtaining an image processing model set including M (M≥2) candidate models, and obtaining a test image including a target face. The method may also include conducting T (T≥1) stages of model set updating operation. Each stage of the T stages of model set updating operation may include conducting a performance evaluation to each candidate model of the image processing model set with respect to the test image, and updating the image processing model set by excluding at least one model from the image processing model set based on the performance evaluation. The method may further include designating, after completing the T stages of model set updating operation, at least one candidate model of the image processing model set as a target model, and determining, based on the target model, a result shape as a shape of the target face.
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公开(公告)号：US20220101562A1
公开(公告)日：2022-03-31
申请号：US17643837
申请日：2021-12-12
发明人： Pan YU , Zhuqing ZHU , Qi CHEN , Wei FANG , Yinchang YANG
摘要： The present disclosure relates to systems and methods for coding. The methods may include receiving at least two contexts, for each of the at least two contexts, obtaining at least one coding parameter corresponding to the context from at least one lookup table, determining a probability interval value corresponding to the context based on a previous probability interval value and the at least one coding parameter, determining a normalized probability interval value corresponding to the context by performing a normalization operation on the probability interval value, determining a probability interval lower limit corresponding to the context based on a previous probability interval lower limit and the at least one coding parameter, determining a normalized probability interval lower limit corresponding to the context by performing the normalization operation on the probability interval lower limit, and outputting at least one byte based on the normalized probability interval lower limit.
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公开(公告)号：US20220094911A1
公开(公告)日：2022-03-24
申请号：US17457920
申请日：2021-12-07
发明人： Dong JIANG , Jucai LIN , Jun YIN , Feiyang ZENG , Cheng FANG
IPC分类号： H04N19/105 , H04N19/137 , H04N19/119 , H04N19/159 , H04N19/176
摘要： The present disclosure provides systems and methods for inter-frame prediction. A method may include obtaining a current coding unit in an image. The method may include obtaining a first MV candidate list corresponding to the current coding unit. The first MV candidate list may include at least one of a first bidirectional MV or a first unidirectional MV. The method may also include determining, based on the first MV candidate list, a second MV candidate list corresponding to the current coding unit and determining, based on the second MV candidate list, a target prediction unit of the current coding unit.
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公开(公告)号：US11270737B2
公开(公告)日：2022-03-08
申请号：US16932900
申请日：2020-07-20
发明人： Wei Li
IPC分类号： G11B27/031 , G10L15/18 , G10L25/57 , G11B27/28 , G11B27/34
摘要： The present disclosure relates to systems and methods for editing a video. The method may include obtaining a video document including audio information. The method may also include processing the audio information to identify at least one desired audio segment of the audio information that has at least one desired acoustic feature representation. Further, the method may include editing the video document to generate a video abstraction at least based on the identified at least one desired audio segment of the audio information.
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公开(公告)号：US20220012526A1
公开(公告)日：2022-01-13
申请号：US17447293
申请日：2021-09-10
发明人： Huadong PAN , He SUN , Shixian LUO
摘要： The present disclosure relates to systems and methods for image retrieval. The system may determine a plurality of difference degrees associated with an image set including a plurality of candidate images and a target image, each of the plurality of difference degrees corresponding to two images in the image set. For each image in the image set, the system may determine an extended subset based on the plurality of difference degrees. For each of the plurality of candidate images, the system may determine an extended difference degree between the candidate image and the target image based on an extended subset corresponding to the candidate image and an extended subset corresponding to the target image. The system may identify a result image corresponding to the target image from the plurality of candidate images based on the extended difference degrees corresponding to the plurality of candidate images.
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公开(公告)号：US11206376B2
公开(公告)日：2021-12-21
申请号：US16891085
申请日：2020-06-03
发明人： Lunqi Zhang
摘要： A method for image acquisition may include receiving a video from a first video camera in a period, the video including a first view of a scene. The method may also include delineating a plurality of first regions within the first view of the scene. The method may further include determining an accumulated effect of at least one feature occurring within the period within at least one of the plurality of first regions. The method may further include directing a second video camera towards a second view of the scene based on the accumulated effect.
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公开(公告)号：US20210392257A1
公开(公告)日：2021-12-16
申请号：US17446474
申请日：2021-08-31
发明人： Yiyi SHAO , Erli LU , Mingzhu CHEN
摘要： The present disclosure relates to systems and methods for automatically adjusting an aperture of a camera. The methods may include obtaining at least two parameters out of three parameters of the camera, the three parameters including a luminance parameter, an exposure parameter, and a focal length parameter; determining a step length of the aperture based on the at least two parameters; and automatically adjusting the aperture of the camera based on the step length.
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公开(公告)号：US11195263B2
公开(公告)日：2021-12-07
申请号：US17165883
申请日：2021-02-02
发明人： Xiaocheng Liu
摘要： A method and system for selecting an image acquisition device. The method may include obtaining a set of device parameter corresponding to at least one image acquisition device. Each device parameter may correspond to an image acquisition device. The device parameters may include a pixel size, and a focal length. The method may include, for each image acquisition device, determining one or more first evaluation values of a target region based at least on the device parameter of the image acquisition device. Each first evaluation value may correspond to a first installation parameter of the image acquisition device. The method may include designating the image acquisition device as a target image acquisition device in response to a determination that at least one first evaluation value is greater than or equal to an evaluation value threshold. And the method may further include determining at least one target installation parameter of the target image acquisition device from the at least one the first installation parameter corresponding to the at least one first evaluation value which is greater than or equal to the evaluation value threshold.
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公开(公告)号：US11194233B2
公开(公告)日：2021-12-07
申请号：US17009796
申请日：2020-09-02
发明人： Liang Dong , Zhengchun Luo , Zhiyong Zhang
摘要： The present disclosure relates to a stand. The stand may include a supporting component, a rotation component, a rotation limiting component, and an adapter ring. The rotation component may be rotatably connected to the supporting component and may be configured to rotate about a first rotation axis. The adapter ring may be placed between the rotation component and the rotation limiting component. The rotation component may include first ratchet teeth on a first side of the rotation component. The rotation limiting component may include second ratchet teeth on a second side of the rotation limiting component facing the first side. The adapter ring may include third ratchet teeth and fourth ratchet teeth on a third side and a fourth side of the adapter ring, respectively. The third ratchet teeth may be engaged with the first ratchet teeth and the fourth ratchet teeth may be engaged with the second ratchet teeth.
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