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公开(公告)号：US20210183111A1
公开(公告)日：2021-06-17
申请号：US16912357
申请日：2020-06-25
Inventor： Yaoyu LV , Hongzhen XUE , Fuqiang MA , Guixin YAN , Lili CHEN , Hao ZHANG , Zhanshan MA , Yachong XUE
Abstract: Provided is a method for compressing texture data of a three-dimensional model, including: acquiring data of polygonal surfaces constituting a contour of a target three-dimensional model, and data of a texture image and a phase plane of the contour; acquiring the texture data of texture points in a texture point group corresponding to each polygonal surface, the texture points in the texture point group including first and second texture points; assigning a weight to each texture point in each texture point group according to the texture data of the first texture points in the texture point group; calculating a sum of weights of each texture point in each texture point group; and compressing the texture data, according to a target compressed data amount, and the texture data and the sum of weights of the texture point whose sum of weights is not zero.
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公开(公告)号：US20190206079A1
公开(公告)日：2019-07-04
申请号：US16156495
申请日：2018-10-10
Inventor： Hongzhen XUE , Jiyang SHAO
CPC classification number: G06T7/73 , G06K9/0061 , G06K9/38 , G06T5/005 , G06T5/20 , G06T2207/20024
Abstract: This disclosure provides a pupil localization method, a device, an apparatus and a storage medium. The method comprises: preprocessing a pupil image; generating a first projection curve and a second projection curve on horizontal and vertical axes of two-dimensional coordinate axes respectively according to the preprocessed image; determining a first pair of dividing points and a second pair of dividing points on the first projection curve and the second projection curve respectively according to a pre-configured threshold; and determining center coordinates of the pupil according to the first pair of dividing points and the second pair of dividing points. This disclosure obtains projection curves through a simple operation of the preprocessed image on the two-dimensional coordinate axes, and then intercepts the dividing point on the projection curves according to the preconfigured threshold to determine the center coordinates of the pupil.
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公开(公告)号：US20210191190A1
公开(公告)日：2021-06-24
申请号：US16320229
申请日：2018-05-23
Applicant: BOE Technology Group Co., Ltd.
Inventor： Hongzhen XUE , Guobing YIN
IPC: G02F1/1335 , G02F1/13357
Abstract: The present disclosure relates to the field of display technologies, and particularly discloses a color film substrate, a display panel, a backlight module, a display device and a display system. The color film substrate includes a plurality of pixel units arranged in an array, each of the plurality of pixel units including a first-class filtering unit and a second-class filtering unit, wherein the first-class filtering unit allows visible light to pass through and blocks invisible light, and the second-class filtering unit allows the invisible light to pass through and blocks the visible light.
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公开(公告)号：US20200226781A1
公开(公告)日：2020-07-16
申请号：US16531105
申请日：2019-08-04
Inventor： Fuqiang MA , Jiankang SUN , Gang LI , Hongzhen XUE , Zehua DONG
Abstract: An image processing method and an image processing includes, when a current frame contains a target picture, taking the current frame as a reference frame for tracking and taking a set of matching points in the current frame, which match the target picture as an initial set of tracking points, to perform tracking of the target picture; obtaining a next frame and determining a set of tracking points of the next frame based on the initial set of tracking points; determining whether the number of tracking points in the set of tracking points is less than a first preset threshold; and, when the number of tracking points in the set of tracking points is less than the first preset threshold, determining supplementary tracking points and adding the supplementary tracking points to the set of tracking points.
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5.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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Patent Agency Ranking
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：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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8.发明申请公开(公告)号：US20210334998A1
公开(公告)日：2021-10-28
申请号：US16473096
申请日：2018-11-05
Inventor： Minglei CHU , Hao ZHANG , Lili CHEN , Lin LIN , Hongzhen XUE , Jiankang SUN , Guixin YAN
Abstract: There are provided in the present disclosure an image processing method, apparatus, device and medium for locating a center of a target object region. The image processing method includes: acquiring a binary image including the target object region; extracting a boundary line of the target object region from the binary image, wherein the boundary line includes a plurality of boundary points; selecting one of the plurality of boundary points as an initiation point, and determining a first connected region, wherein a starting point of the first connected region is the initiation point; determining the center of the target object region based on the first connected region.
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公开(公告)号：US20210067766A1
公开(公告)日：2021-03-04
申请号：US16834609
申请日：2020-03-30
Inventor： Minglei CHU , Fuqiang MA , Xue DONG , Ming CHEN , Hao ZHANG , Lili CHEN , Hongzhen XUE , Yaoyu LV , Zhanshan MA , Guixin YAN
IPC: H04N13/393 , H04N13/395 , G02B30/52 , G06T15/08 , G06T7/73 , G06T7/90
Abstract: A data transmission method, a method of displaying three-dimensional image, a data transmission device and a three-dimensional image display device are provided. The shift register unit includes a device. The data transmission method, comprises: performing a phase decomposition on a preset three-dimensional model to generate a plurality of phase images; acquiring position information and color information of pixels in the plurality of phase images; and sending the position information and the color information of the pixels in the plurality of phase images to a volumetric three-dimensional display device.
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10.发明申请公开(公告)号：US20200226789A1
公开(公告)日：2020-07-16
申请号：US16739476
申请日：2020-01-10
Inventor： Fuqiang MA , Hongzhen XUE , Lili CHEN , Hao ZHANG , Gang LI , Minglei CHU
Abstract: A camera calibration plate, a camera calibration method and device, and an image acquisition system are described. The camera calibration plate includes a planar plate body, and a plurality of groups of concentric circles on the planar plate body. The plurality of groups of concentric circles are same and include solid circle center points. The plurality of groups of concentric circles are distributed in an array.
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