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Patent Agency Ranking
公开(公告)号：US11301037B2
公开(公告)日：2022-04-12
申请号：US16336593
申请日：2018-08-23
Inventor： Jiankang Sun , Hao Zhang , Lili Chen , Minglei Chu , Guixin Yan , Guobing Yin , Hongzhen Xue , Fuqiang Ma
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.
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公开(公告)号：US20210333868A1
公开(公告)日：2021-10-28
申请号：US16336593
申请日：2018-08-23
Inventor： Jiankang Sun , Hao Zhang , Lili Chen , Minglei Chu , Guixin Yan , Guobing Yin , Hongzhen Xue , Fuqiang Ma
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.
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公开(公告)号：US20210090298A1
公开(公告)日：2021-03-25
申请号：US16838744
申请日：2020-04-02
Inventor： Jiankang Sun , Hao Zhang , Lili Chen , Yachong Xue , Hongzhen Xue , Fuqiang Ma , Zehua Dong
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.
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24.发明申请公开(公告)号：US20200342583A1
公开(公告)日：2020-10-29
申请号：US16760560
申请日：2019-09-26
Inventor： Hongzhen Xue , Fuqiang Ma , Minglei Chu , Jiankang Sun , Guobing Yin , Zehua Dong , Lili Chen
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.
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25.发明申请公开(公告)号：US20200286245A1
公开(公告)日：2020-09-10
申请号：US16537241
申请日：2019-08-09
Inventor： Zehua Dong , Minglei Chu , Lili Chen , Hao Zhang , Jiankang Sun , Yukun Sun , Jinghua Miao , Zhifu Li , Xuefeng Wang , Hongzhen Xue
Abstract: 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.
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