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公开(公告)号：US11435289B2
公开(公告)日：2022-09-06
申请号：US16956886
申请日：2020-01-02
Inventor： Hongzhen Xue , Fuqiang Ma , Yali Liu , Lili Chen , Jiankang Sun , Shuo Zhang
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.
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公开(公告)号：US20220124921A1
公开(公告)日：2022-04-21
申请号：US17229953
申请日：2021-04-14
Inventor： Yuhong Liu , Zhanshan Ma , Jiankang Sun , Zheng Ge , Lili Chen
Abstract: A rotary shaft mechanism of an electronic is provided. The rotary shaft mechanism includes a first rotating assembly and a second rotating assembly, wherein the first rotating assembly is provided with a first through hole, and the second rotating assembly is provided with a second through hole, wherein the first through hole is in communication with the second through hole, and an axis of the first through hole and an axis of the second through hole are both intersected with a rotary shaft between the first rotating assembly and the second rotating assembly. A flexible circuit board of the electronic device is disposed in the first through hole and the second through hole.
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公开(公告)号：US11294455B2
公开(公告)日：2022-04-05
申请号：US16305882
申请日：2018-01-30
Inventor： Jiankang Sun , Hao Zhang , Lili Chen , Minglei Chu , Jian Sun , Ziqiang Guo , Guixin Yan , Yakun Wang
Abstract: Embodiments of the present disclosure provide a method and a device for determining a gaze placement and a computer readable storage medium. The method comprises acquiring an ocular image of a subject; determining at least one gaze characteristic vector based on an ocular image; determining a gaze placement of the subject, according to a gaze estimation model and the at least one characteristic vector. The characteristic vector comprises at least one of: a first characteristic vector from a first reference speckle center to a pupil center, wherein the first reference speckle is formed by a first reference source in the ocular image; a second characteristic vector from the pupil center to a second reference speckle center, wherein the second reference speckle is formed by a second reference source in the ocular image; a third characteristic vector from the second reference speckle center to the first reference speckle center.
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公开(公告)号：US11288838B2
公开(公告)日：2022-03-29
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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公开(公告)号：US11275926B2
公开(公告)日：2022-03-15
申请号：US16239825
申请日：2019-01-04
Inventor： Minglei Chu , Hao Zhang , Lili Chen , Jian Sun , Ziqiang Guo , Guixin Yan , Jiankang Sun , Xi Li , Yinwei Chen , Ruifeng Qin , Yuanjie Lu
Abstract: Disclosed is face tracking method and device. The method includes: acquiring an initial facial image in a to-be-tracked picture; performing binarization processing on the initial facial image according to a standard range of color parameter and an actual value of the color parameter of each pixel in the initial facial image, to obtain a binarized facial image; acquiring a position of a preset organ in the binarized facial image; and acquiring a position of a final facial image according to the position of the preset organ and a position of the initial facial image.
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Patent Agency Ranking
公开(公告)号：US20210383102A1
公开(公告)日：2021-12-09
申请号：US16466908
申请日：2018-12-10
Inventor： Guixin Yan , Hao Zhang , Lili Chen , Jian Sun , Wenhong Tian , Jinghua Miao , Bin Zhao , Minglei Chu , Ziqiang Guo , Jiankang Sun
Abstract: A gesture shaking recognition method includes acquiring two adjacent frames of gesture images of a gesture (S100), selecting a tracking point in each of the two adjacent frames of gesture images (S200), determining positional information of a maximum value pixel point in each of the two adjacent frames of gesture images based on the tracking point (S300), and determining whether gesture shaking occurs (S400) based on the positional information of the maximum value pixel point in each of the two adjacent frames of gesture images and positional information of the tracking point in each of the two adjacent frames of gesture images. The tracking point in each of the two adjacent frames of gesture images may correspond to a same position on the gesture.
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公开(公告)号：US11132544B2
公开(公告)日：2021-09-28
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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公开(公告)号：US10942567B2
公开(公告)日：2021-03-09
申请号：US16662554
申请日：2019-10-24
Inventor： Jiankang Sun , Lili Chen , Hao Zhang , Hongzhen Xue , Fuqiang Ma , Zehua Dong
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.
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公开(公告)号：US12236813B2
公开(公告)日：2025-02-25
申请号：US17913480
申请日：2021-10-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yaoyu Lv , Feng Gao , Yachong Xue , Jiankang Sun , Lili Chen , Hao Zhang
Abstract: The present disclosure provides a display panel, a driving method thereof and a display device, belongs to the field of display technology, and can at least partially solve the problem that the transmission bandwidth required by the conventional rotational display device is large during the display. The display panel of the present disclosure includes: the pixel units arranged in an array, each pixel unit including at least two sub-pixels; and a plurality of pixel driving chips in one-to-one correspondence with the plurality of pixel units, the pixel driving chip being configured to provide a driving signal to a corresponding pixel unit.
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公开(公告)号：US20240201488A1
公开(公告)日：2024-06-20
申请号：US17789549
申请日：2021-05-27
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lei Wang , Xuan Feng , Yapeng Li , Yunke Qin , Wenhao Tian , Jiankang Sun
CPC classification number: G02B27/0093 , G02B27/0172 , G02B27/0922 , G02B27/0955 , G02B27/0988
Abstract: Provide is a display device including a display panel, a plurality of photoelectric sensor assemblies, and a processing circuit. The display panel includes a display region and a peripheral region surrounding the display region. The plurality of photoelectric sensor assemblies are disposed in the peripheral region, wherein each of the photoelectric sensor assemblies is configured to receive an optical signal reflected via eyes of a user and convert the optical signal into an electric signal. The processing circuit is connected to each of the photoelectric sensor assemblies, wherein the processing circuit is configured determine a gaze position of the eyes of the user on the display panel based on a signal value of the electric signal transmitted by each of the photoelectric sensor assemblies and a position of at least one of the photoelectric sensor assemblies.
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