Patents by Inventor Fuqiang Ma

Fuqiang Ma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11403745
    Abstract: The present disclosure provides a method, apparatus, and measurement device for measuring distortion parameters of a display device, and a computer-readable medium. The display device includes a display screen and a lens located on a light exiting side of the display screen, and the method includes: acquiring a distortion image which is generated by imaging an initial image through the lens, wherein the initial image is an image displayed on the display screen, the initial image comprises a plurality of first corner points, and the distortion image comprises a plurality of second corner points which match the plurality of first corner points respectively; and determining the distortion parameters of the display device according to a locational relationship between the second corner points and a first corner points which match the second corner points.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: August 2, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongzhen Xue, Fuqiang Ma, Minglei Chu, Jiankang Sun, Guobing Yin, Zehua Dong, Lili Chen
  • Patent number: 11398052
    Abstract: A camera positioning method, device and medium are provided. The method includes: determining positioning configuration information; determining, according to the positioning configuration information, positioning information of the camera by a preset algorithm, the positioning information including distance limitation data which defines a distance between a target and the camera; and determining a position of the camera according to the positioning information, wherein the positioning configuration information includes target data, ratio data of a target image in an image captured by the camera, and camera parameter data.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: July 26, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jiankang Sun, Hao Zhang, Lili Chen, Yachong Xue, Hongzhen Xue, Fuqiang Ma, Zehua Dong
  • Patent number: 11379960
    Abstract: Embodiments of the present disclosure provides an image processing method, comprising: acquiring an initial image comprising an image of pupil; acquiring an accumulative histogram set of grayscale values of pixels in the initial image; determining a threshold for binarizing the initial image according to a grayscale value corresponding to a target region in respective accumulative histograms in the accumulative histogram set, wherein the target region corresponds to the image of pupil in the initial image; and binarizing the initial image according to the threshold. An image processing apparatus and a wearable device are further provided.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: July 5, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Gang Li, Lili Chen, Jiankang Sun, Fuqiang Ma, Liyang Cui, Minglei Chu, Yachong Xue
  • Patent number: 11367195
    Abstract: An image segmentation method, an image segmentation apparatus, an image segmentation device are provided, the image segmentation method including: extracting, from a current frame of a video image, a skeleton two-dimensional estimation and a skeleton three-dimensional estimation of a human three-dimensional skeleton; obtaining a target three-dimensional skeleton based on the skeleton two-dimensional estimation and the skeleton three-dimensional estimation; implementing image segmentation based on the target three-dimensional skeleton; wherein the human three-dimensional skeleton has multiple nodes, and the video image is a two-dimensional image, when calculating the target three-dimensional skeleton in the current frame, by comprehensively considering the skeleton two-dimensional estimation and skeleton three-dimensional skeleton estimation of the human three-dimensional skeleton in the current frame, the accuracy and robustness of the obtained target three-dimensional skeleton can be improved, thereby improv
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: June 21, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yaoyu Lv, Lili Chen, Hao Zhang, Fuqiang Ma, Jiankang Sun, Shuo Zhang, Gang Li, Yachong Xue, Xiangjun Peng, Chenxi Zhao
  • Patent number: 11315281
    Abstract: The present disclosure relates to a pupil positioning method. The pupil positioning method may include: obtaining an eye image under illumination of a light source; determining a first internal point in a pupil of the eye image; calculating gradient changes of pixel points along a straight line starting from the first internal point toward outside of the pupil; determining a plurality of edge points at an edge of the pupil based on the gradient changes of the pixel points along the straight line; and performing ellipse fitting on the edge points to obtain a pupil center.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: April 26, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiankang Sun, Hao Zhang, Lili Chen, Hongzhen Xue, Fuqiang Ma, Minglei Chu, Xi Li
  • Patent number: 11301037
    Abstract: The present application provides a virtual reality interaction method. The virtual reality interaction method includes acquiring a reference pupil image of a user; determining a pupil position in the reference pupil image; determining a gaze point in a virtual image based on the pupil position in the reference pupil image and a mapping relationship between first coordinates in a first coordinate system of the reference pupil image and second coordinates in a second coordinate system of the virtual image; and executing an operation based on a determination that the gaze point is in an activatable region of the virtual image and a determination of a gaze state.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 12, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Jiankang Sun, Hao Zhang, Lili Chen, Minglei Chu, Guixin Yan, Guobing Yin, Hongzhen Xue, Fuqiang Ma
  • Patent number: 11288838
    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.
    Type: Grant
    Filed: August 4, 2019
    Date of Patent: March 29, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fuqiang Ma, Jiankang Sun, Gang Li, Hongzhen Xue, Zehua Dong
  • Publication number: 20210405389
    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.
    Type: Application
    Filed: August 13, 2020
    Publication date: December 30, 2021
    Inventors: Yaoyu LV, Hongzhen XUE, Guixin YAN, Fuqiang MA, Lili CHEN, Hao ZHANG, Zhanshan MA, Shuo ZHANG
  • Publication number: 20210333868
    Abstract: The present application provides a virtual reality interaction method. The virtual reality interaction method includes acquiring a reference pupil image of a user; determining a pupil position in the reference pupil image; determining a gaze point in a virtual image based on the pupil position in the reference pupil image and a mapping relationship between first coordinates in a first coordinate system of the reference pupil image and second coordinates in a second coordinate system of the virtual image; and executing an operation based on a determination that the gaze point is in an activatable region of the virtual image and a determination of a gaze state.
    Type: Application
    Filed: August 23, 2018
    Publication date: October 28, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Jiankang Sun, Hao Zhang, Lili Chen, Minglei Chu, Guixin Yan, Guobing Yin, Hongzhen Xue, Fuqiang Ma
  • Publication number: 20210247320
    Abstract: An optical distortion measurement method that including receiving target field of view information; processing the target field of view information using a coordinate conversion model to obtain screen coordinates of a target angle of view, wherein the coordinate conversion model may be configured to convert image plane coordinates of the target angle of view to screen coordinates of the target angle of view; and outputting at least the screen coordinates of the target angle of view.
    Type: Application
    Filed: January 2, 2020
    Publication date: August 12, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongzhen Xue, Fuqiang Ma, Yali Liu, Lili Chen, Jiankang Sun, Shuo Zhang
  • Publication number: 20210241487
    Abstract: The present disclosure relates to a pupil positioning method. The pupil positioning method may include: obtaining an eye image under illumination of a light source; determining a first internal point in a pupil of the eye image; calculating gradient changes of pixel points along a straight line starting from the first internal point toward outside of the pupil; determining a plurality of edge points at an edge of the pupil based on the gradient changes of the pixel points along the straight line; and performing ellipse fitting on the edge points to obtain a pupil center.
    Type: Application
    Filed: November 19, 2019
    Publication date: August 5, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiankang Sun, Hao Zhang, Lili Chen, Hongzhen Xue, Fuqiang Ma, Minglei Chu, Xi Li
  • Publication number: 20210183111
    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.
    Type: Application
    Filed: June 25, 2020
    Publication date: June 17, 2021
    Inventors: Yaoyu LV, Hongzhen XUE, Fuqiang MA, Guixin YAN, Lili CHEN, Hao ZHANG, Zhanshan MA, Yachong XUE
  • Publication number: 20210090298
    Abstract: A camera positioning method, device and medium are provided. The method includes: determining positioning configuration information; determining, according to the positioning configuration information, positioning information of the camera by a preset algorithm, the positioning information including distance limitation data which defines a distance between a target and the camera; and determining a position of the camera according to the positioning information, wherein the positioning configuration information includes target data, ratio data of a target image in an image captured by the camera, and camera parameter data.
    Type: Application
    Filed: April 2, 2020
    Publication date: March 25, 2021
    Applicants: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jiankang Sun, Hao Zhang, Lili Chen, Yachong Xue, Hongzhen Xue, Fuqiang Ma, Zehua Dong
  • Patent number: 10942567
    Abstract: A gaze point compensation method and apparatus in a display device, and a display device are provided. The method includes: obtaining a real-time eye image of a user; obtaining an eye-corner position coordinate in the real-time eye image; when the eye-corner position coordinate is within an initial calibration range, making first compensation for the eye-corner position coordinate according to a correspondence relationship between a pupil and an eye-corner position; otherwise, making second compensation for the eye-corner position coordinate, wherein the second compensation is configured to make the eye-corner position coordinate after the second compensation at least be within the initial calibration range; and compensating for a gaze point according to the first compensation or the second compensation.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: March 9, 2021
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jiankang Sun, Lili Chen, Hao Zhang, Hongzhen Xue, Fuqiang Ma, Zehua Dong
  • Publication number: 20210067766
    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.
    Type: Application
    Filed: March 30, 2020
    Publication date: March 4, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minglei CHU, Fuqiang MA, Xue DONG, Ming CHEN, Hao ZHANG, Lili CHEN, Hongzhen XUE, Yaoyu LV, Zhanshan MA, Guixin YAN
  • Publication number: 20210012153
    Abstract: An image processing method includes acquiring a set of training images, and extracting a visual feature of each training image in the set of training images. The method includes clustering the visual feature, generating a visual dictionary composed of cluster centers serving as visual words, and adding 1 to the number of the visual dictionaries. The method includes determining whether the number of the visual dictionaries is equal to a predetermined number, and outputting the predetermined number of visual dictionaries generated if the determination result is yes, otherwise determining, from the visual dictionary, a visual word nearest to the visual feature. The method includes calculating a residual between the visual feature and the visual word nearest to the visual feature, determining the residual as the new visual feature, and returning to clustering the visual feature, generating a visual dictionary, and adding 1 to the number of the visual dictionaries.
    Type: Application
    Filed: January 15, 2019
    Publication date: January 14, 2021
    Inventors: Fuqiang Ma, Guixin Yan, Zehua Dong
  • Publication number: 20200410688
    Abstract: An image segmentation method, an image segmentation apparatus, an image segmentation device are provided, the image segmentation method including: extracting, from a current frame of a video image, a skeleton two-dimensional estimation and a skeleton three-dimensional estimation of a human three-dimensional skeleton; obtaining a target three-dimensional skeleton based on the skeleton two-dimensional estimation and the skeleton three-dimensional estimation; implementing image segmentation based on the target three-dimensional skeleton; wherein the human three-dimensional skeleton has multiple nodes, and the video image is a two-dimensional image, when calculating the target three-dimensional skeleton in the current frame, by comprehensively considering the skeleton two-dimensional estimation and skeleton three-dimensional skeleton estimation of the human three-dimensional skeleton in the current frame, the accuracy and robustness of the obtained target three-dimensional skeleton can be improved, thereby improv
    Type: Application
    Filed: June 24, 2020
    Publication date: December 31, 2020
    Applicants: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yaoyu Lv, Lili Chen, Hao Zhang, Fuqiang Ma, Jiankang Sun, Shuo Zhang, Gang Li, Yachong Xue, Xiangjun Peng, Chenxi Zhao
  • Publication number: 20200342583
    Abstract: The present disclosure provides a method, apparatus, and measurement device for measuring distortion parameters of a display device, and a computer-readable medium. The display device includes a display screen and a lens located on a light exiting side of the display screen, and the method includes: acquiring a distortion image which is generated an initial through the lens, wherein the initial image is an image displayed on the display screen, the initial image comprises a plurality of first corner points, and the distortion image comprises a plurality of second corner points which match the plurality of first corner points respectively; and determining the distortion parameters of the display device according to a locational relationship between the second corner points and a first corner points which match the second corner points.
    Type: Application
    Filed: September 26, 2019
    Publication date: October 29, 2020
    Inventors: Hongzhen Xue, Fuqiang Ma, Minglei Chu, Jiankang Sun, Guobing Yin, Zehua Dong, Lili Chen
  • Publication number: 20200311888
    Abstract: Embodiments of the present disclosure provides an image processing method, comprising: acquiring an initial image comprising an image of pupil; acquiring an accumulative histogram set of grayscale values of pixels in the initial image; determining a threshold for binarizing the initial image according to a grayscale value corresponding to a target region in respective accumulative histograms in the accumulative histogram set, wherein the target region corresponds to the image of pupil in the initial image; and binarizing the initial image according to the threshold. An image processing apparatus and a wearable device are further provided.
    Type: Application
    Filed: December 18, 2019
    Publication date: October 1, 2020
    Inventors: Gang Li, Lili Chen, Jiankang Sun, Fuqiang Ma, Liyang Cui, Minglei Chu, Yachong Xue
  • Publication number: 20200226789
    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.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 16, 2020
    Inventors: Fuqiang MA, Hongzhen XUE, Lili CHEN, Hao ZHANG, Gang LI, Minglei CHU