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公开(公告)号：US20240221125A1
公开(公告)日：2024-07-04
申请号：US18557955
申请日：2023-02-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Guang BAI , Zhongyuan WU , Xue DONG , Fei YANG , Jiankang SUN
CPC classification number: G06T5/50 , G06F3/013 , G06T7/62 , G06T2207/20221
Abstract: An image processing method is applied to an electronic device having a display and includes: obtaining pupil coordinates of a user at a current moment; determining a fixation region and a non-fixation region corresponding to the display at the current moment according to the pupil coordinates; rendering an image corresponding to the fixation region according to a first resolution, and rendering an image corresponding to the non-fixation region according to a second resolution, the first resolution being greater than the second resolution; stitching an image corresponding to the fixation region after the rendering and an image corresponding to the non-fixation region after the rendering; and displaying a stitched image on the display.
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12.发明申请公开(公告)号：US20220269341A1
公开(公告)日：2022-08-25
申请号：US17555230
申请日：2021-12-17
Inventor： Jiankang SUN , Hao ZHANG , Lili CHEN , Yachong XUE , Xinkai LI
Abstract: A sight positioning method, a head-mounted display device, a computer device, and a computer-readable storage medium are provided. The method includes: determining a first transform relation and a second transform relation, where the first transform relation is a transform relation between an image coordinate system and a light source coordinate system, and the second transform relation is a transform relation between the light source coordinate system and a display unit coordinate system; calculating coordinates of a pupil center in the image coordinate system according to an eye image of eyes of a user acquired by the image acquisition equipment; and obtaining coordinates of the pupil center serving as a fixation point position in the display unit coordinate system of the display unit according to the coordinates of the pupil center in the image coordinate system, the first transform relation and the second transform relation.
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13.发明申请公开(公告)号：US20220164966A1
公开(公告)日：2022-05-26
申请号：US17349952
申请日：2021-06-17
Inventor： Yachong XUE , Hao ZHANG , Lili CHEN , Jiankang SUN , Guixin YAN , Xiaolei LIU , Yaoyu LV , Menglei ZHANG , Xinkai LI
Abstract: A method for tracking eye gaze, a system, a processing device and a computer readable storage medium are provided. The method includes: acquiring original images acquired by multiple image acquisition devices, splicing the multiple original images into a spliced image, and determining a responsible region of each image acquisition device in the spliced image; performing preliminary face locating on the spliced image, and determining one or more original images corresponding to a preliminarily located face position according to the preliminarily located face position and the responsible region; and performing secondary face locating on the one or more determined original images to obtain face pose information and a positional relation of pupils with respect to human eyes, and calculating coordinates of gaze points of the human eyes according to the obtained face pose information and the positional relation of the pupils with respect to the human eyes.
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公开(公告)号：US20220129660A1
公开(公告)日：2022-04-28
申请号：US17319933
申请日：2021-05-13
Inventor： Yachong XUE , Hao ZHANG , Lili CHEN , Jiankang SUN , Xinkai LI , Guixin YAN , Xiaolei LIU , Yaoyu LV , Menglei ZHANG
Abstract: A system and a method of calculating coordinates of a pupil center point are provided. The system for acquiring the coordinates of the pupil center point includes a first camera, a second camera, a storage and a processor. The first camera is configured to capture a first image including a face and output the first image to the processor, the second camera is configured to capture a second image including a pupil and output the second image to the processor, a resolution of the first camera is smaller than a resolution of the second camera, and the storage is configured to store processing data, and the processor is configured to: acquire the first image and the second image; extract a first eye region corresponding to an eye from the first image; convert the first eye region into the second image, to acquire a second eye region corresponding to the eye in the second image; and detect a pupil in the second eye region and acquire the coordinates of the pupil center point.
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公开(公告)号：US20210089123A1
公开(公告)日：2021-03-25
申请号：US16836054
申请日：2020-03-31
Inventor： Jiankang SUN , Hao ZHANG , Lili CHEN , Liyang CUI , Yachong XUE , Gang LI
IPC: G06F3/01
Abstract: The application discloses a method and a device for calculating parameters of a gaze-point calculation model. The method includes: displaying multiple calibration points in sequence on a device screen, and collecting multiple pupil-coordinates data corresponding to each of at least one calibration point of the multiple calibration points; for each calibration point of the at least one calibration point, screening the multiple pupil-coordinates data corresponding to the calibration point, to obtain at least one pupil-coordinates calibration data corresponding to the calibration point; calculating multiple parameters of the gaze-point calculation model according to coordinates data of each calibration point and the at least one pupil-coordinates calibration data corresponding to the calibration point.
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Patent Agency Ranking
公开(公告)号：US20210042497A1
公开(公告)日：2021-02-11
申请号：US16612996
申请日：2019-04-23
Inventor： Jiankang SUN , Hao ZHANG , Lili CHEN , Minglei CHU , Hongzhen XUE , Guixin YAN , Xi LI
Abstract: A visual fatigue recognition method, a visual fatigue recognition device, a virtual reality apparatus and a storage medium. The visual fatigue recognition method includes acquiring an eye image of a user; acquiring a visual feature from the eye image, and calculating a visual fatigue value according to the visual features according to the visual feature a visual fatigue value; comparing the visual fatigue value with a fatigue grade threshold values and determining a the visual fatigue grade based on the comparison result; and allowing the visual fatigue grade to be used to generate a corresponding alert signal. The visual fatigue recognition method helps to protect the user's eyesight.
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17.发明申请公开(公告)号：US20200342805A1
公开(公告)日：2020-10-29
申请号：US16963410
申请日：2019-12-24
Inventor： Xi LI , Yuanjie LU , Jinghua MIAO , Bin ZHAO , Xuefeng WANG , Yukun SUN , Jianwen SUO , Qingwen FAN , Wenyu LI , Jinbao PENG , Zhifu LI , Lili CHEN , Jiankang SUN
Abstract: The present disclosure provides a display panel and device, an image processing method and device, and a virtual reality system. The display panel includes: a first display area; and at least one second display area surrounding the first display area, a number of sub-pixels per unit area in the first display area being greater than a number of sub-pixels per unit area in the at least one second display area.
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公开(公告)号：US20190311181A1
公开(公告)日：2019-10-10
申请号：US16239825
申请日：2019-01-04
Inventor： Minglei CHU , Hao ZHANG , Lili CHEN , Jian SUN , Ziqiang GUO , Guixin YAN , Jiankang SUN , Xi LI , Yinwei CHEN , Ruifeng QIN , Yuanjie LU
Abstract: Disclosed is face tracking method and device. The method includes: acquiring an initial facial image in a to-be-tracked picture; performing binarization processing on the initial facial image according to a standard range of color parameter and an actual value of the color parameter of each pixel in the initial facial image, to obtain a binarized facial image; acquiring a position of a preset organ in the binarized facial image; and acquiring a position of a final facial image according to the position of the preset organ and a position of the initial facial image.
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19.发明公开公开(公告)号：US20230351975A1
公开(公告)日：2023-11-02
申请号：US18014184
申请日：2021-08-16
Inventor： Yachong XUE , Xue DONG , Hao ZHANG , Lili CHEN , Jiankang SUN , Guixin YAN , Yaoyu LV , Menglei ZHANG , Xinkai LI
CPC classification number: G09G3/3426 , G06F3/013 , G09G2320/0686 , G09G2354/00 , G09G2320/0626 , G09G2360/16
Abstract: Provided is a method for controlling a display apparatus. In the method, the display apparatus receives at least two pieces of data to be displayed from at least two terminals respectively, wherein the at least two pieces of data to be displayed include screen projection data and status parameters of the at least two terminals, and then displays the status parameter, and performs a screen projection based on the screen projection data.
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公开(公告)号：US20230345135A1
公开(公告)日：2023-10-26
申请号：US17790388
申请日：2021-05-25
Inventor： Yachong XUE , Hao ZHANG , Lili CHEN , Jiankang SUN , Guixin YAN , Xiaolei LIU , Gang LI
Abstract: Provided are an image processing method, apparatus and device, and a storage medium. The image processing method comprises: acquiring a plurality of original sub-images collected by means of a plurality of cameras in a camera array; converting first pixel coordinates of each pixel in each original sub-image in an image coordinate system into target pixel coordinates in a target plane coordinate system; determining a region pixel value of each sub-region according to the correspondence between the target pixel coordinates of each pixel in each original sub-image and each sub-region in a target plane; and determining a spliced image in the target plane according to the region pixel value of each sub-region. According to the present disclosure, the algorithm is simple, and original sub-images can be quickly and accurately processed, so as to obtain a spliced image with a relatively high image quality.
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