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公开(公告)号：US11748894B2
公开(公告)日：2023-09-05
申请号：US17051602
申请日：2019-05-09
申请人： Yiwei Wang , Liyan Liu , Wei Wang
发明人： Yiwei Wang , Liyan Liu , Wei Wang
CPC分类号： G06T7/246 , G06T7/248 , G06V10/74 , G06V10/462
摘要： Disclosed is a video stabilization method including steps of selecting a first area in a first image; determining at least one first feature point based on the first area, and performing feature point matching on the first image and a second image so as to obtain at least one feature point matching pair between the first image and the second image, each feature point matching pair including a first feature point of the first image and a second feature point of the second image; conducting motion parameter estimation based on the at least one feature point matching pair so as to obtain a motion parameter; and carrying out motion compensation with respect to the first image based on the motion parameter so as to acquire a first stable image after compensation.
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公开(公告)号：US11363206B2
公开(公告)日：2022-06-14
申请号：US16932013
申请日：2020-07-17
申请人： Yiwei Wang , Liyan Liu , Wei Wang
发明人： Yiwei Wang , Liyan Liu , Wei Wang
摘要： A method, for correcting a rolling shutter phenomenon, includes obtaining a double fish-eye image to be processed using a photographing device; obtaining an image processing parameter including gyro data of the photographing device; calculating a rolling shutter phenomenon correcting parameter based on the image processing parameter; and correcting the rolling shutter phenomenon with respect to the double fish-eye image in a spherical-coordinate system using the rolling shutter phenomenon correcting parameter.
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公开(公告)号：US20220027656A1
公开(公告)日：2022-01-27
申请号：US17381414
申请日：2021-07-21
申请人： Haijing Jia , Hong Yi , Liyan Liu , Wei Wang
发明人： Haijing Jia , Hong Yi , Liyan Liu , Wei Wang
摘要： Disclosed are an image matching method and apparatus. The image matching method is inclusive of steps of obtaining a panoramic image of at least one subspace in a 3D space and a 2D image of the 3D space; acquiring a 2D image of the at least one subspace in the 3D space; performing 3D reconstruction on the panoramic image of the at least one subspace, and procuring a projection image corresponding to the panoramic image of the at least one subspace; and attaining a matching relationship between the panoramic image of the at least one subspace and the 2D image of the at least one subspace, and establishing an association relationship between the panoramic image of the at least one subspace and the 2D image of the at least one subspace between which the matching relationship has been generated.
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公开(公告)号：US12069374B2
公开(公告)日：2024-08-20
申请号：US17807932
申请日：2022-06-21
申请人： Haijing Jia , Hong Yi , Liyan Liu , Wei Wang
发明人： Haijing Jia , Hong Yi , Liyan Liu , Wei Wang
IPC分类号： H04N23/698 , G06T5/50 , G06T7/73 , H04N23/80
CPC分类号： H04N23/698 , G06T5/50 , G06T7/73 , H04N23/80
摘要： A method and an apparatus for determining a connection relation of subspaces, and a non-transitory computer-readable recording medium are provided. In the method, a plurality of sets of panoramic images respectively corresponding to two respective adjacent subspaces are obtained. Each set of the panoramic images includes two first panoramic images, and a second panoramic image photographed at a connection opening. Orientations of the connection openings are determined based on positions of the connection openings, and orientations of a camera. Relative positions of the two adjacent subspaces are determined based on correspondence relations between the two first panoramic images and parts of the respective second panoramic images. The connection relation of the subspaces is determined based on the connection relation determined based on the same subspace, the orientations of the connection openings, and the relative positions of the two adjacent subspaces.
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公开(公告)号：US11776157B2
公开(公告)日：2023-10-03
申请号：US17455704
申请日：2021-11-19
申请人： Haijing Jia , Hong Yi , Liyan Liu , Wei Wang
发明人： Haijing Jia , Hong Yi , Liyan Liu , Wei Wang
IPC分类号： G06T7/73 , H04N5/262 , G06V10/75 , G06F18/22 , H04N23/698
CPC分类号： G06T7/74 , G06F18/22 , G06V10/751 , H04N5/2628 , H04N23/698 , G06T2207/20084
摘要： Disclosed are a panoramic image based jump position determination method and apparatus. The method includes steps of obtaining first and second original panoramic images having the same horizontal width; performing, based on posture data of cameras respectively shooting the two original panoramic images, an adjustment process on at least one of the two original panoramic images, so as to acquire first and second panoramic images; after the adjustment process, conducting a feature extraction process regarding the two panoramic images, and choosing, based on a result of the feature extraction process, a plurality of pairs of image columns on the two panoramic images, so as to select at least one pair of first image columns from among the plurality of pairs of image columns; and determining, based on the at least one pair of first image columns, jump positions on the first and second panoramic images for jumping between the two.
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6.发明公开公开(公告)号：US20230230316A1
公开(公告)日：2023-07-20
申请号：US18155159
申请日：2023-01-17
申请人： Hong YI , Haijing Jia , Hengzhi Zhang , Liyan Liu , Wei Wang
发明人： Hong YI , Haijing Jia , Hengzhi Zhang , Liyan Liu , Wei Wang
IPC分类号： G06T17/00 , G06T7/60 , G06V10/25 , H04N23/698
CPC分类号： G06T17/00 , G06T7/60 , G06V10/25 , H04N23/698 , G06T2207/10028 , G06T2207/20084 , G06V2201/07
摘要： A method and an apparatus for constructing a three-dimensional channel, and a non-transitory computer-readable recording medium are provided. In the method, a depth image corresponding to a first panoramic image is generated. Then, channel object detection is performed on the first panoramic image to obtain channel object boxes in the first panoramic image. Each of the channel object boxes is four annularly interconnected arc-shaped sides, and each of the arc-shaped sides is a circular arc of a great circle. Then, a three-dimensional point cloud of a channel object in the first panoramic image is generated based on the first panoramic image, the channel object boxes and the depth image.
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公开(公告)号：US11601426B2
公开(公告)日：2023-03-07
申请号：US16850088
申请日：2020-04-16
申请人： Xiaojing Fan , Wei Wang , Haihua Yu , Ke Liao , Liyan Liu
发明人： Xiaojing Fan , Wei Wang , Haihua Yu , Ke Liao , Liyan Liu
摘要： A device authentication method, a service access control method, a device, and a non-transitory computer-readable recording medium are provided. In the device authentication method, an authentication request device issues an authentication request transaction in a distributed ledger, and an authentication response device reads the authentication request transaction in the distributed ledger and performs authentication. Thus, no third-party authentication center or coordinate device is required to participate in an authentication handshake process, thereby reducing deployment overhead of an authentication system and improving efficiency of authentication and access service control.
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公开(公告)号：US12039698B2
公开(公告)日：2024-07-16
申请号：US17629954
申请日：2020-08-12
申请人： Yupeng Zhang , Daojing Li , Makoto Odamaki , Hong Yi , Liyan Liu , Huan Jia , Wei Wang
发明人： Yupeng Zhang , Daojing Li , Makoto Odamaki , Hong Yi , Liyan Liu , Huan Jia , Wei Wang
IPC分类号： G06T5/00 , G06T5/50 , G06V10/774
CPC分类号： G06T5/00 , G06T5/50 , G06V10/774 , G06T2207/20081
摘要： Disclosed is an image processing method including steps of obtaining a plurality of sets of training data, each set of training data containing data of first and second images, image quality of the second image being higher than that of the first image, shooting contents of the first image being the same model, letting the data of the first image be an input of the model, and utilizing the plurality of sets of training data to train the model until a difference feature value between an output of the model and the data of the second image is minimum; and inputting data of a third image to be processed into the model so as to output data of a fourth image after image enhancement, image quality of the fourth image being higher than that of the third image.
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公开(公告)号：US11948343B2
公开(公告)日：2024-04-02
申请号：US17381414
申请日：2021-07-21
申请人： Haijing Jia , Hong Yi , Liyan Liu , Wei Wang
发明人： Haijing Jia , Hong Yi , Liyan Liu , Wei Wang
CPC分类号： G06V10/443 , G06T7/11 , G06T7/55
摘要： Disclosed are an image matching method and apparatus. The image matching method is inclusive of steps of obtaining a panoramic image of at least one subspace in a 3D space and a 2D image of the 3D space; acquiring a 2D image of the at least one subspace in the 3D space; performing 3D reconstruction on the panoramic image of the at least one subspace, and procuring a projection image corresponding to the panoramic image of the at least one subspace; and attaining a matching relationship between the panoramic image of the at least one subspace and the 2D image of the at least one subspace, and establishing an association relationship between the panoramic image of the at least one subspace and the 2D image of the at least one subspace between which the matching relationship has been generated.
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公开(公告)号：US11216919B2
公开(公告)日：2022-01-04
申请号：US16807589
申请日：2020-03-03
申请人： Haijing Jia , Hong Yi , Liyan Liu , Wei Wang
发明人： Haijing Jia , Hong Yi , Liyan Liu , Wei Wang
摘要： An image processing method includes obtaining an original image; partitioning the original image into a first part and a second part such that distortion of at least a part of an image in the first part of the original image is smaller than a predetermined threshold, and distortion of at least a part of an image in the second part of the original image is greater than or equal to the predetermined threshold; correcting the second part of the original image so as to obtain a distortion-corrected image corresponding to the second part; and recognizing the first part of the original image and the distortion-corrected image so as to recognize an object in the original image.
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