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1. 发明申请

US20210227139A1 VIDEO STABILIZATION METHOD AND APPARATUS AND NON-TRANSITORY COMPUTER-READABLE MEDIUM 有权
公开(公告)号：US20210227139A1
公开(公告)日：2021-07-22
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
IPC分类号： H04N5/232 , G06T7/246 , G06K9/46
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.

2. 发明申请

US20180253879A1 METHOD, APPARATUS AND ELECTRONIC DEVICE FOR PROCESSING PANORAMIC IMAGE 审中-公开
公开(公告)号：US20180253879A1
公开(公告)日：2018-09-06
申请号：US15868131
申请日：2018-01-11
申请人： Chaofeng LI , Hong Yi , Liyan Liu , Haihua Yu , Hongyi Liu
发明人： Chaofeng LI , Hong Yi , Liyan Liu , Haihua Yu , Hongyi Liu
IPC分类号： G06T11/60 , H04N5/232 , G06T7/70 , G06T7/11
CPC分类号： G06T11/60 , G06T3/0062 , G06T7/11 , G06T7/70 , H04N5/23238
摘要： A method, an apparatus and an electronic device for processing a panoramic image are provided. The method includes converting a first planar projection image of the panoramic image into a spherical image; determining a position of a region of interest in the spherical image; and cutting and expanding the spherical image based on the position of the region of interest in the spherical image, and obtaining a second planar projection image of the panoramic image. A distance between the region of interest in the second planar projection image and a center point of the second planar projection image is shorter than a distance between the region of interest in the first planar projection image and a center point of the first planar projection image.

3. 发明授权

US09767567B2 Method and apparatus for separating foreground image, and non-transitory computer-readable recording medium 有权
公开(公告)号：US09767567B2
公开(公告)日：2017-09-19
申请号：US14930009
申请日：2015-11-02
申请人： Ying Zhao , Gang Wang , Liyan Liu
发明人： Ying Zhao , Gang Wang , Liyan Liu
IPC分类号： G06K9/00 , G06T7/194 , G06T7/00 , G06K9/32 , G06T7/11
CPC分类号： G06T7/11 , G06K9/0014 , G06K9/3233 , G06T7/194 , G06T2207/10004 , G06T2207/10028
摘要： A method and an apparatus for separating a foreground image are disclosed. The method includes obtaining an input image, and color information and depth information of the input image; roughly dividing, based on the depth information of the input image, the input image to obtain an initial three-color image; reducing or expanding, based on the color information of the input image, an unknown region in the initial three-color image to obtain an optimized three-color image; and separating the foreground image from the optimized three-color image. According to the method, the initial three-color image can be optimized based on the color information of the input image, so that a more accurate three-color image can be obtained; thus the foreground image can be accurately separated from the three-color image.

4. 发明授权

US08983136B2 Traffic sign detecting method and traffic sign detecting device 有权
标题翻译：交通标志检测方法和交通标志检测装置
公开(公告)号：US08983136B2
公开(公告)日：2015-03-17
申请号：US13608401
申请日：2012-09-10
申请人： Liyan Liu , Xiaomeng Wang , Pingping Pan
发明人： Liyan Liu , Xiaomeng Wang , Pingping Pan
IPC分类号： G06K9/00
CPC分类号： G06K9/00818
摘要： Disclosed are a method and a device for detecting traffic signs in an input image camera. The method comprises a color space converting step of converting the input image into a HSV color space image; a filtering step of filtering, based on a predetermined pass range of a standard color of each of the traffic signs, the HSV color space image to obtain a filtered image, and then generating one or more connected domains based on one or more regions in the filtered image; a removing step of removing, based on a standard rule of the corresponding traffic sign, at least one of the generated connected domains, not being the corresponding traffic sign, and letting others of the generated connected domains be candidate traffic sign domains; and a recognition step of recognizing, based on a feature of each of the candidate traffic sign domains, the corresponding traffic sign.
摘要翻译：公开了一种用于检测输入图像相机中的交通标志的方法和装置。该方法包括将输入图像转换为HSV色彩空间图像的色彩空间转换步骤; 滤波步骤，基于每个交通标志的标准颜色的预定通过范围，对所述HSV颜色空间图像进行滤波，以获得滤波图像，然后基于所述HSV颜色空间图像中的一个或多个区域生成一个或多个连接域过滤图像; 基于对应的交通标志的标准规则去除所生成的连接域中的至少一个，不是相应的交通标志，并且使所生成的连接域中的其他人成为候选交通标志域; 以及识别步骤，基于每个候选交通标志域的特征识别相应的交通标志。

5. 发明申请

US20130083971A1 FRONT VEHICLE DETECTING METHOD AND FRONT VEHICLE DETECTING APPARATUS 有权
标题翻译：前车辆检测方法和前车检测装置
公开(公告)号：US20130083971A1
公开(公告)日：2013-04-04
申请号：US13630166
申请日：2012-09-28
申请人： Cheng DU , Liyan LIU , Xiaomeng WANG , Ping HU
发明人： Cheng DU , Liyan LIU , Xiaomeng WANG , Ping HU
IPC分类号： G06K9/62
CPC分类号： G06K9/00825
摘要： A method for detecting a front vehicle comprises: a moving light detecting step of detecting a front moving light area of an own vehicle in at least one image of a front scene of the own vehicle obtained at a time; a vehicle candidate generating step of extracting a light area pair from the detected front moving light area so that a front vehicle candidate is generated; and a vehicle candidate verifying step of verifying that the front vehicle candidate is the front vehicle in cases where the front vehicle candidate meets predetermined characteristics of a vehicle light.
摘要翻译：一种用于检测前车辆的方法，包括：移动光检测步骤，用于在每次获得的本车辆的前方场景的至少一个图像中检测自身车辆的前移动光区域; 车辆候补生成步骤，从检测到的前方移动光区域提取亮区域对，使得产生前方车辆候补; 以及车辆候选验证步骤，用于在前方车辆候选符合车辆光的预定特性的情况下验证前方车辆候选者是前方车辆。

6. 发明申请

US20220164984A1 PANORAMIC IMAGE BASED JUMP POSITION DETERMINATION METHOD AND APPARATUS AND NON-TRANSITORY COMPUTER-READABLE MEDIUM 有权
公开(公告)号：US20220164984A1
公开(公告)日：2022-05-26
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 , H04N5/232 , H04N5/262 , G06K9/62
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.

7. 发明申请

US20220027656A1 IMAGE MATCHING METHOD AND APPARATUS AND NON-TRANSITORY COMPUTER-READABLE MEDIUM 有权
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
IPC分类号： G06K9/46 , 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.

8. 发明申请

US20210029283A1 METHOD FOR CORRECTING ROLLING SHUTTER PHENOMENON, ROLLING SHUTTER PHENOMENON CORRECTING APPARATUS, AND COMPUTER-READABLE RECORDING MEDIUM 有权
公开(公告)号：US20210029283A1
公开(公告)日：2021-01-28
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
IPC分类号： H04N5/232
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.

9. 发明申请

US20130077830A1 TRAFFIC SIGN DETECTING METHOD AND TRAFFIC SIGN DETECTING DEVICE 有权
标题翻译：交通标志检测方法和交通标志检测装置
公开(公告)号：US20130077830A1
公开(公告)日：2013-03-28
申请号：US13608401
申请日：2012-09-10
申请人： Liyan LIU , Xiaomeng WANG , Pingping PAN
发明人： Liyan LIU , Xiaomeng WANG , Pingping PAN
IPC分类号： G06K9/40
CPC分类号： G06K9/00818
摘要： Disclosed are a method and a device for detecting traffic signs in an input image camera. The method comprises a color space converting step of converting the input image into a HSV color space image; a filtering step of filtering, based on a predetermined pass range of a standard color of each of the traffic signs, the HSV color space image to obtain a filtered image, and then generating one or more connected domains based on one or more regions in the filtered image; a removing step of removing, based on a standard rule of the corresponding traffic sign, at least one of the generated connected domains, not being the corresponding traffic sign, and letting others of the generated connected domains be candidate traffic sign domains; and a recognition step of recognizing, based on a feature of each of the candidate traffic sign domains, the corresponding traffic sign.
摘要翻译：公开了一种用于检测输入图像相机中的交通标志的方法和装置。该方法包括将输入图像转换为HSV色彩空间图像的色彩空间转换步骤; 滤波步骤，基于每个交通标志的标准颜色的预定通过范围，对所述HSV颜色空间图像进行滤波，以获得滤波图像，然后基于所述HSV颜色空间图像中的一个或多个区域生成一个或多个连接域过滤图像; 基于对应的交通标志的标准规则去除所生成的连接域中的至少一个，不是相应的交通标志，并且使所生成的连接域中的其他人成为候选交通标志域; 以及识别步骤，基于每个候选交通标志域的特征识别相应的交通标志。

10. 发明授权

US11601426B2 Device authentication method, service access control method, device, and non-transitory computer-readable recording medium 有权
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
IPC分类号： H04L29/06 , H04L9/40 , H04L9/06 , H04L9/08 , H04L9/32
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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