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121.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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122.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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124.发明申请公开(公告)号：US20210405389A1
公开(公告)日：2021-12-30
申请号：US17288722
申请日：2020-08-13
Inventor： Yaoyu LV , Hongzhen XUE , Guixin YAN , Fuqiang MA , Lili CHEN , Hao ZHANG , Zhanshan MA , Shuo ZHANG
IPC: G02B30/54 , G06T17/20 , G02B30/52 , H04N13/393
Abstract: A method of simulating volumetric 3D display, includes: acquiring a display variable of a virtual display screen in a volumetric 3D display simulation space, the virtual display screen comprising a plurality of stereo pixels, the display variable comprising a voxel parameter of the plurality of stereo pixels, and the voxel parameter comprising a size in a first direction of the plurality of stereo pixels, a size in a second direction of the plurality of stereo pixels, and a size in a third direction of the plurality of stereo pixels; determining a display state parameter of a first stereo pixel of the plurality of stereo pixels for an object to be displayed according to the display variable; and simulating display of the object to be displayed according to the display state parameter. A computer-readable storage medium and a volumetric 3D display simulation apparatus are further provided.
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公开(公告)号：US20210365675A1
公开(公告)日：2021-11-25
申请号：US16473509
申请日：2018-12-04
Inventor： Guixin YAN , Hao ZHANG , Lili CHEN , Minglei CHU , Jian SUN , Jinghua MlAO , Wenhong TIAN , Ruijun DONG , Bin ZHAO , Ziqiang GUO
Abstract: A method for identifying body representation information in an image, includes: determining a skeleton-like line of a body in the image; and then performing identification of the body representation information according to the skeleton-like line. An apparatus, and a device for identifying body representation information in an image and a storage medium are also provided.
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Patent Agency Ranking
公开(公告)号：US20210335295A1
公开(公告)日：2021-10-28
申请号：US16490784
申请日：2018-12-20
Inventor： Bin ZHAO , Lili CHEN , Hao ZHANG , Jinghua MIAO , Yukun SUN , Xuefeng WANG , Lixin WANG , Xi LI , Jianwen SUO , Ruifeng QIN , Ziqiang GUO , Guixin YAN
IPC: G09G3/36
Abstract: A display device, a virtual reality equipment, and a driving method are disclosed. The driving method is configured to drive a display device, and the display device includes a display array and a light valve array. The display array includes rows of sub-pixels, the light valve array includes a plurality of sub light valves, respective one sub light valve of the plurality of sub light valves corresponds to at least one row of sub-pixels, and the light valve array is on a light-emitting side of the display array. The driving method includes: any sub-pixel in the at least one row of sub-pixels being in a response phase of a display operation, the respective one sub light valve being in a light-shielding state, and the respective one sub light valve corresponding to the at least one row of sub-pixels.
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公开(公告)号：US20210334943A1
公开(公告)日：2021-10-28
申请号：US16494588
申请日：2019-01-28
Inventor： Minglei CHU , Hao ZHANG , Lili CHEN , Chenru WANG , Yali LIU , Yukun SUN , Guixin YAN , Zhanshan MA , Ziqiang GUO , Zehua DONG , Bingxin LIU
Abstract: The present disclosure provides an image processing method, device, and virtual reality display apparatus for performing anti-distortion processing on images. The image processing method, for an electronic device including a lens unit, includes: determining a to-be-buffered image size according to a size of an input image and anti-distortion parameters of the lens unit; generating, based on the input image and the anti-distortion parameters, an anti-distortion buffer image having an image size according to the to-be-buffered image size.
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公开(公告)号：US20210092339A1
公开(公告)日：2021-03-25
申请号：US16862877
申请日：2020-04-30
Inventor： Shuo ZHANG , Hao ZHANG , Lili CHEN , Hongzhen XUE , Minglei CHU , Guixin YAN , Yukun SUN , Chenxi ZHAO , Zehua DONG , Xiangjun PENG , Yaoyu LV , Yachong XUE , Huidong HE , Qingwen FAN
IPC: H04N9/31
Abstract: Embodiments of the present disclosure relate to a method for analyzing an imaging quality of an imaging system. The imaging system comprises a spatial light modulator. The spatial light modulator comprises pixel units arranged in an array. The method comprises obtaining a transmittance distribution function of the spatial light modulator based on a structural parameter of the pixel unit, wherein the structural parameter is an aperture ratio. The imaging quality analysis parameter of the imaging system is obtained based on the transmittance distribution function of the spatial light modulator. Then, the imaging quality of the imaging system is analyzed based on the imaging quality analysis parameter.
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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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130.发明申请公开(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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