Patents by Inventor Zehua DONG
Zehua DONG 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).
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Patent number: 11526580Abstract: A method for correcting data sensed by a sensor includes: acquiring the data sensed by the sensor; establishing a surface equation based on an acquired data to performing surface fitting; and correcting the data sensed by the sensor with the surface equation. The method further includes: evaluating the acquired data sensed by the sensor to update fitting parameters of the surface equation so as to obtain an updated surface equation; and correcting the data sensed by the sensor with the updated surface equation. Parameter data sensed by the sensor can be corrected in real time, which reduces the influence of environmental factors on the parameter data sensed by the sensor and improves the accuracy of the data sensed by the sensor.Type: GrantFiled: October 31, 2019Date of Patent: December 13, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Minglei Chu, Zehua Dong, Hao Zhang, Lili Chen, Yukun Sun, Yakun Wang, Xuefeng Wang, Jinghua Miao
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Patent number: 11509882Abstract: A three-dimensional display apparatus includes: a display layer and a transmissive phase modulator, wherein the transmissive phase modulator is disposed on a light exit side of the display layer, and includes a plurality of modulation units; and each of the modulation units is configured to perform phase modulation on light received by the modulation unit, and is configured such that a picture displayed by the display layer is presented as a contiguous curved virtual image after being processed by the transmissive phase modulator.Type: GrantFiled: August 26, 2019Date of Patent: November 22, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Shuo Zhang, Hao Zhang, Lili Chen, Minglei Chu, Hongzhen Xue, Guixin Yan, Zehua Dong, Huidong He, Chenxi Zhao, Xiangjun Peng, Yaoyu Lv, Yukun Sun, Qingwen Fan, Yachong Xue
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Patent number: 11463666Abstract: 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.Type: GrantFiled: April 30, 2020Date of Patent: October 4, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: 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
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Patent number: 11403745Abstract: 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: GrantFiled: September 26, 2019Date of Patent: August 2, 2022Assignees: 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
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Patent number: 11398052Abstract: 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: GrantFiled: April 2, 2020Date of Patent: July 26, 2022Assignees: 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
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Publication number: 20220132098Abstract: A three-dimensional display apparatus includes: a display layer and a transmissive phase modulator, wherein the transmissive phase modulator is disposed on a light exit side of the display layer, and includes a plurality of modulation units; and each of the modulation units is configured to perform phase modulation on light received by the modulation unit, and is configured such that a picture displayed by the display layer is presented as a contiguous curved virtual image after being processed by the transmissive phase modulator.Type: ApplicationFiled: August 26, 2019Publication date: April 28, 2022Inventors: Shuo Zhang, Hao Zhang, Lili Chen, Minglei Chu, Hongzhen Xue, Guixin Yan, Zehua Dong, Huidong He, Chenxi Zhao, Xiangjun Peng, Yaoyu Lv, Yukun Sun, Qingwen Fan, Yachong Xue
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Patent number: 11308588Abstract: 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.Type: GrantFiled: January 28, 2019Date of Patent: April 19, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Minglei Chu, Hao Zhang, Lili Chen, Chenru Wang, Yali Liu, Yukun Sun, Guixin Yan, Zhanshan Ma, Ziqiang Guo, Zehua Dong, Bingxin Liu
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Patent number: 11288838Abstract: 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: GrantFiled: August 4, 2019Date of Patent: March 29, 2022Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Fuqiang Ma, Jiankang Sun, Gang Li, Hongzhen Xue, Zehua Dong
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Patent number: 11270456Abstract: The present disclosure discloses a spatial positioning method, a spatial positioning device, a spatial positioning system and a computer readable medium. The spatial positioning method includes: capturing a feature image containing multiple feature markers of a to-be-positioned object; determining coordinate positions of respective feature markers in the feature image in an image coordinate system; traversing the respective feature markers in the image coordinate system according to preset multiple standard vector relations, and arbitrarily selecting at least three of the feature markers to calculate vector relations corresponding to the standard vector relations; determining position information of at least three feature markers according to position information corresponding to the standard vector relations in the image coordinate system when it is determined that the calculated vector relations satisfy any standard vector relation.Type: GrantFiled: March 29, 2019Date of Patent: March 8, 2022Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zehua Dong, Hao Zhang, Lili Chen, Minglei Chu, Jiankang Sun, Ziqiang Guo, Zhanshan Ma, Bingxin Liu
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Publication number: 20210334943Abstract: 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.Type: ApplicationFiled: January 28, 2019Publication date: October 28, 2021Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Minglei CHU, Hao ZHANG, Lili CHEN, Chenru WANG, Yali LIU, Yukun SUN, Guixin YAN, Zhanshan MA, Ziqiang GUO, Zehua DONG, Bingxin LIU
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Patent number: 11120562Abstract: The present disclosure provides a posture estimation method, a posture estimation apparatus, and a computer readable storage medium. Here, the posture estimation method includes: calculating an angular velocity control amount at a current moment based on a measured acceleration value and an estimated acceleration value at the current moment; correcting the measured angular velocity value at the current moment according to the calculated angular velocity control amount to obtain the corrected angular velocity value at the current moment; and obtaining an estimated posture quaternion value at a next moment according to the corrected angular velocity value obtained by calculation and an estimated posture quaternion value at the current moment.Type: GrantFiled: August 9, 2019Date of Patent: September 14, 2021Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zehua Dong, Minglei Chu, Lili Chen, Hao Zhang, Jiankang Sun, Yukun Sun, Jinghua Miao, Zhifu Li, Xuefeng Wang, Hongzhen Xue
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Publication number: 20210142507Abstract: The present disclosure discloses a spatial positioning method, a spatial positioning device, a spatial positioning system and a computer readable medium. The spatial positioning method includes: capturing a feature image containing multiple feature markers of a to-be-positioned object; determining coordinate positions of respective feature markers in the feature image in an image coordinate system; traversing the respective feature markers in the image coordinate system according to preset multiple standard vector relations, and arbitrarily selecting at least three of the feature markers to calculate vector relations corresponding to the standard vector relations; determining position information of at least three feature markers according to position information corresponding to the standard vector relations in the image coordinate system when it is determined that the calculated vector relations satisfy any standard vector relation.Type: ApplicationFiled: March 29, 2019Publication date: May 13, 2021Applicants: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zehua DONG, Hao ZHANG, Lili CHEN, Minglei CHU, Jiankang SUN, Ziqiang GUO, Zhanshan MA, Bingxin LIU
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Patent number: 10971108Abstract: This disclosure relates to an image display method and apparatus, an electronic device, a VR device, and a non-transitory computer-readable storage medium. An image display method applied to a VR device comprises: determining an activity state of the VR device according to measurement data of a sensor within the VR device; determining a processing mode of a current frame image to be displayed according to the activity state, wherein the processing mode is one of a flicker suppression process and a forwarding process; and processing the current frame image to be displayed according to the processing mode to obtain a current frame image for a display in the VR device, and sending it to the display.Type: GrantFiled: July 26, 2019Date of Patent: April 6, 2021Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Minglei Chu, Lili Chen, Hao Zhang, Zehua Dong, Guixin Yan, Jinghua Miao
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Publication number: 20210090298Abstract: 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: ApplicationFiled: April 2, 2020Publication date: March 25, 2021Applicants: 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
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Publication number: 20210092339Abstract: 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.Type: ApplicationFiled: April 30, 2020Publication date: March 25, 2021Inventors: 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
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Patent number: 10942567Abstract: 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: GrantFiled: October 24, 2019Date of Patent: March 9, 2021Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Jiankang Sun, Lili Chen, Hao Zhang, Hongzhen Xue, Fuqiang Ma, Zehua Dong
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Publication number: 20210012153Abstract: 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: ApplicationFiled: January 15, 2019Publication date: January 14, 2021Inventors: Fuqiang Ma, Guixin Yan, Zehua Dong
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Publication number: 20200342583Abstract: 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: ApplicationFiled: September 26, 2019Publication date: October 29, 2020Inventors: Hongzhen Xue, Fuqiang Ma, Minglei Chu, Jiankang Sun, Guobing Yin, Zehua Dong, Lili Chen
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Publication number: 20200286245Abstract: The present disclosure provides a posture estimation method, a posture estimation apparatus, and a computer readable storage medium. Here, the posture estimation method includes: calculating an angular velocity control amount at a current moment based on a measured acceleration value and an estimated acceleration value at the current moment; correcting the measured angular velocity value at the current moment according to the calculated angular velocity control amount to obtain the corrected angular velocity value at the current moment; and obtaining an estimated posture quaternion value at a next moment according to the corrected angular velocity value obtained by calculation and an estimated posture quaternion value at the current moment.Type: ApplicationFiled: August 9, 2019Publication date: September 10, 2020Inventors: Zehua Dong, Minglei Chu, Lili Chen, Hao Zhang, Jiankang Sun, Yukun Sun, Jinghua Miao, Zhifu Li, Xuefeng Wang, Hongzhen Xue
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Publication number: 20200242191Abstract: A method for correcting data sensed by a sensor includes: acquiring the data sensed by the sensor; establishing a surface equation based on an acquired data to performing surface fitting; and correcting the data sensed by the sensor with the surface equation. The method further includes: evaluating the acquired data sensed by the sensor to update fitting parameters of the surface equation so as to obtain an updated surface equation; and correcting the data sensed by the sensor with the updated surface equation. Parameter data sensed by the sensor can be corrected in real time, which reduces the influence of environmental factors on the parameter data sensed by the sensor and improves the accuracy of the data sensed by the sensor.Type: ApplicationFiled: October 31, 2019Publication date: July 30, 2020Inventors: Minglei CHU, Zehua DONG, Hao ZHANG, Lili CHEN, Yukun SUN, Yakun WANG, Xuefeng WANG, Jinghua MIAO