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公开(公告)号：US20210026883A1
公开(公告)日：2021-01-28
申请号：US17043591
申请日：2019-12-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jingtao XU , Jianwen SUO , Xiaojun TANG
IPC: G06F16/532 , G06F16/55 , G06F16/51 , G06F16/583 , G06N3/08 , G06K9/62
Abstract: An image-to-image search method includes: receiving an image to be searched and at least one category of similarity search sent by a terminal; extracting a feature code of the image by using a trained hash model that uniquely corresponds to the at least one category of similarity search according to the received image and the at least one category of similarity search; obtaining target images that are similar to the image according to the feature code of the image in a feature code library that uniquely corresponds to the at least one category of similarity search; and sending the target images to the terminal.
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公开(公告)号：US20200151484A1
公开(公告)日：2020-05-14
申请号：US16605752
申请日：2019-02-03
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaojun TANG
Abstract: The present disclosure discloses a sample acquisition method, a target detection model generation method, a target detection method, a computing device, and a computer readable medium. The sample acquisition method includes: adding a perturbation to a pre-marked sample original box in an original image to obtain a sample selection box, wherein an image framed by the sample original box contains a target; and extracting an image framed by the sample selection box as a sample. The technical solutions of the present disclosure can effectively increase the number of the samples that can be acquired in the original image, and adding a background to the samples can effectively improve the recognition accuracy of the trained target detection model.
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公开(公告)号：US20210406813A1
公开(公告)日：2021-12-30
申请号：US17209493
申请日：2021-03-23
Applicant: BOE Technology Group Co., Ltd.
Inventor： Tong LIU , Xiaojun TANG
Abstract: The present disclosure provides a method of determining a status of a position on a shelf, a shelf and a non-transitory computer-readable storage medium. The method includes: acquiring current detection data of the shelf in a current detection period; determining first status information of respective positions from the current detection data, in response to determining that the current detection data satisfies a preset condition; in response to the current detection data indicating that a target position whose first status information indicates the second status exists, acquiring first status information of the target position from previous detection data in a previous detection period; and determining second status information of the target position based on the first status information of the target position in the current detection data and the previous detection data respectively.
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4.发明申请公开(公告)号：US20190303650A1
公开(公告)日：2019-10-03
申请号：US16114907
申请日：2018-08-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Tong LIU , Xiangyang LIU , Xiaojun TANG , Zhiguo ZHANG
Abstract: An automatic object recognition method and an automatic object recognition system, a shopping device and a non-transitory computer readable storage medium are disclosed. The automatic object recognition method includes: acquiring a first image and a second image, both the first image and the second image including a same object, and the second image being a depth image; extracting a feature point of the object based on the first image; obtaining a joint feature based on the feature point from the first image and depth information of the second image; and recognizing the object based on the joint feature.
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5.发明申请公开(公告)号：US20190266737A1
公开(公告)日：2019-08-29
申请号：US15750977
申请日：2017-07-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaojun TANG
Abstract: This application provides an image matching method, an image matching apparatus, an image matching system, and a storage medium, the image matching method includes: an extension step of extending an original reference image into one or more extended reference images, wherein the one or more extended reference images is obtained by deforming the original reference image; and an image matching step of image-matching a detected image with candidate reference images that include the original reference image and the one or more extended reference images.
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Patent Agency Ranking
公开(公告)号：US20180239957A1
公开(公告)日：2018-08-23
申请号：US15553710
申请日：2017-03-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaojun TANG , Jibo ZHAO
CPC classification number: G06K9/00382 , G06K9/00201 , G06K9/00375 , G06T1/60 , G06T7/11 , G06T7/529 , G06T7/543 , G06T2207/10028 , G06T2207/30196
Abstract: A heuristic finger detection method based on a depth image is disclosed. The method includes the steps of: acquiring a hand connected region from a user's depth image; calculating the central point of the hand connected region; calculating a plurality of extremely far points in the hand connected region that have extremum 3D geodesic distances from the central point; detecting fingertips and finger regions from the plurality of calculated extremely far points; and outputting fingertip positions and the finger regions. The method calculates and detects fingertips of users by means of 3D geodesic distance, without extracting boundary contours of hand regions, which improves robustness of gesture detection and reduces detection error rates. The method has the advantages of higher finger detection accuracy and fast computing speed.
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公开(公告)号：US20230101426A1
公开(公告)日：2023-03-30
申请号：US17789147
申请日：2021-06-18
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yue LI , Guangwei HUANG , Xiaojun TANG
IPC: G06V30/14 , G06V30/146 , G06V30/142 , G06V30/19
Abstract: A text recognition method and apparatus, a storage medium, and an electronic device. Said method comprises: acquiring a text image (S101); determining at least one text box from the text image, each text box corresponding to at least one word (S102); determining, from the at least one text box, a text box to be recognized (S103); determining, from the text image, a picture unit corresponding to the text box to be recognized (S104); rotating the picture unit to a target pose (S105); and performing text recognition on the picture unit in the target pose, and acquiring a target recognition result (S106). The method, apparatus, storage medium, and electronic device can recognize a text unit in a text having a large inclination angle.
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公开(公告)号：US20210150729A1
公开(公告)日：2021-05-20
申请号：US16641830
申请日：2019-08-01
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Huanhuan ZHANG , Tong LIU , Xiaojun TANG , Yifei ZHANG , Zhiguo ZHANG
Abstract: The present disclosure provides a line segment detection method, apparatus, device, and a computer-readable storage medium. Said method includes: extracting image features of an image to be processed, the image features including an image gradient angle and an image gradient amplitude; determining a plurality of seed points based on the extracted image features; for each seed point of the plurality of seed points, determining a current connected region of respective seed point according to a region growth rule, wherein the region growth rule needs to satisfy both a gradient amplitude growth rule and a gradient angle growth rule simultaneously; and performing line segment fitting on line segments within the current connected region of respective seed point.
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公开(公告)号：US20210099310A1
公开(公告)日：2021-04-01
申请号：US16916872
申请日：2020-06-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD. , PEKING UNIVERSITY
Inventor： Yigeng FANG , Xiaojun TANG , Yadong MU
Abstract: Provided are an image processing method, an image matching method, a device, and a storage medium. The image processing method includes: obtaining an image feature of an input image; determining a plurality of local image features of the image feature; determining a plurality of local feature vectors corresponding to the plurality of local image features respectively; determining a hash code of the input image based on the plurality of local feature vectors.
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10.发明申请公开(公告)号：US20200217656A1
公开(公告)日：2020-07-09
申请号：US16623859
申请日：2018-01-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaojun TANG
Abstract: The present disclosure relates to a method and an apparatus for measuring a distance using a vehicle-mounted camera, a storage medium, and an electronic device. The method includes: calibrating a camera based on camera calibration images to obtain a camera parameter; detecting parallel lane lines to obtain a vanishing point of the parallel lane lines according to the detected parallel lane lines; calculating a pitch angle of the camera according to the camera parameter and the vanishing point; determining information of an object to be detected in an image captured by the camera; and calculating a distance from the object to be detected to the camera and a size of the object to be detected according to the information of the object to be detected, the pitch angle of the camera, and the camera parameter.
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