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公开(公告)号：US11436818B2
公开(公告)日：2022-09-06
申请号：US16596789
申请日：2019-10-09
发明人： Jingwen Dai , Jie He
摘要： A tracking method, comprising: acquiring a feature point of a controller by a camera of a HMD, wherein the feature point is used to indicate a corresponding location of the controller; receiving state information of the controller collected by an IMU of the controller, wherein the state information includes position information and rotation information of the controller; and determining a current state of the controller according to the feature point and the state information, wherein the current state includes a current position and a current rotation of the controller.
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公开(公告)号：US10922042B2
公开(公告)日：2021-02-16
申请号：US16432906
申请日：2019-06-05
发明人： Yuanqing Yin , Jingwen Dai , Jie He
摘要： A method for displaying virtual content and a system for sharing virtual content are disclosed. The method includes obtaining, by a first electronic device, a first spatial location information of the first electronic device with respect to at least one marker; receiving, by the first electronic device, data of a first virtual object generated in a second electronic device and a second spatial location information of the first virtual object with respect to the at least one marker; generating, by the first electronic device, a second virtual object based on the data of the first virtual object, the first spatial location information, and the second spatial location information, to obtain a display content, wherein the second virtual object is same to the first virtual object in content while the second virtual object is different from the first virtual object with a different display angle; and displaying the display content.
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公开(公告)号：US10916020B2
公开(公告)日：2021-02-09
申请号：US16313056
申请日：2017-06-21
发明人： Yongtao Hu , Jingwen Dai , Jie He
摘要： The present disclosure provides a method and device for identifying a light source. The method includes as follows. M stripe sets in an image may be detected. A first energy spectrum data corresponding to each of M stripe sets may be obtained. A second energy spectrum data corresponding to each light source in a database may be obtained. The database may include K light sources, and the energy spectrum data corresponds to an identity of the light source. A correlation coefficient between the second energy spectrum data and the first energy spectrum data may be calculated to obtain M*K correlation coefficients. The identity of each stripe set corresponding to the light source in the database may be determined according to the M*K correlation coefficients. With this disclosure, the tracking of the light source emitted by a controller can be achieved.
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公开(公告)号：US10785812B2
公开(公告)日：2020-09-22
申请号：US16536346
申请日：2019-08-09
发明人： Guotai Wang , Jingwen Dai , Jie He
摘要： A method and device for communication connection are provided. The method may include: sending by a host device, a broadcast connection request to slave device according to a first timer and a broadcast frequency hopping information of the host device; the broadcast connection request being used to set the currently used frequency hopping information by a target slave device as the communication frequency hopping information; receiving by a the host device, a broadcast acknowledgement response sent from the slave device, sending by the host device, a connection request to the slave device having sent the broadcast acknowledgement response, according to the first timer and the communication frequency hopping information; and establishing by the host device, a communication connection with the slave device having sent the broadcast acknowledgement response. This method can reduce the delay of establishing a communication connection between a host device and a slave device.
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5.发明授权公开(公告)号：US10319100B2
公开(公告)日：2019-06-11
申请号：US15669822
申请日：2017-08-04
发明人： Jingwen Dai , Yongtao Hu , Jie He
摘要： An object identifying and tracking device is provided. The device includes a first image capturer to capture a first raw image of an object, a second image capturer to capture a second raw image of the object, a first processor, a second processor and a post processor. The object includes a first light source emitting light of a first wavelength and a second light source emitting light of a second wavelength. The first processor and the second processor respectively receive the first and the second raw images and respectively extract a first group of information associated with the light of the first wavelength and a second group of information associated with the light of the second wavelength emitted from the object. The post processor processes the first group of information and the second group of information to obtain a third group of information.
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公开(公告)号：US11448864B2
公开(公告)日：2022-09-20
申请号：US16659593
申请日：2019-10-22
发明人： Hao Zeng , Daobing Huang
摘要： The embodiments of the disclosure provide an optical system and an image enlargement device. The optical system may include a display and an optical component disposed between the display and a viewing position. The optical component may include a first reflective element and a second reflective element. The first reflective element is configured to receive an incident light emitted from the display. The second reflective element is disposed on a reflected light path of the first reflective element, and configured to receive the incident light reflected by the first reflective element and reflect the reflected incident light to a viewing position. The first reflective element and/or the second reflective element having a function of concentrating light. Therefore, when the user looks at a display of a mobile phone or a terminal, the display is enlarged by the even reflection of the first reflective element and the second reflective element, thereby improving the user experience and comfort.
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公开(公告)号：US11380063B2
公开(公告)日：2022-07-05
申请号：US16731094
申请日：2019-12-31
发明人： Sibin Huang , Jingwen Dai , Jie He
IPC分类号： G06T19/00 , H04N13/344 , H04N13/111 , G02B30/22
摘要： A three-dimensional display method is provided and comprises: acquiring target space coordinates of a target marker in a physical space; converting the target space coordinates into rendering coordinates in a virtual space; acquiring data of a virtual object to be displayed, and rendering, based on the data of the virtual object and the rendering coordinates, the virtual object to obtain a left-eye display content and a right-eye display content of the virtual object; and displaying the left-eye display content and the right-eye display content. The left-eye display content is projected onto a first optical lens, the right-eye display content is projected onto a second optical lens, and the first optical lens and the second optical lens respectively reflect the left-eye display content and the right-eye display content to human eyes. The method can achieve alignment display of the virtual object with the target marker, and a stereoscopic display.
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公开(公告)号：US11127156B2
公开(公告)日：2021-09-21
申请号：US16687699
申请日：2019-11-19
发明人： Yongtao Hu , Guoxing Yu , Jingwen Dai
摘要： A method of device tracking is provided. Based on a captured image containing a marker, first spatial position is acquired. Based on a captured image of a scene, second spatial position is acquired. Based on at least one of the first spatial position and the second spatial position, a terminal device may be positioned and tracked.
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公开(公告)号：US10895799B2
公开(公告)日：2021-01-19
申请号：US16231620
申请日：2018-12-24
发明人： Yongtao Hu , Jingwen Dai , Jie He
摘要： The present disclosure provides a method and device for identifying a flashing light source. The method includes as follows. A processor obtains an image captured via a rolling shutter image sensor, the rolling shutter image sensor capturing an image of an environmental background, wherein the environmental background may include movable flashing light sources. A processor obtains stripe sets in the image, wherein the stripe sets can be obtained by capturing the flashing light sources via the rolling shutter image sensor. A processor takes a center of each stripe set as a reference point, and samples along a first direction to obtain n sampling points. A processor identifies the flashing light source by processing the n sampling points. With this disclosure, the identifying automatically of the flashing light source can be achieved.
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公开(公告)号：US10795456B2
公开(公告)日：2020-10-06
申请号：US15578705
申请日：2016-03-22
发明人： Jie He , Jingwen Dai , Congling Wan , Yongtao Hu
摘要： The present application provides a method and device for searching stripe set and a system with the same. Wherein, the method includes: a plurality of first connected domains are obtained in the binary image. A target connected domain is selected from the plurality of first connected domains. The stripe set based on the target connected domain is determined to determine a stripe pattern. A center of the stripe pattern is calculated according to the target connected domain of the stripe set. Whether the stripe set is an effective stripe set is determined based on the center of the stripe pattern. The method can eliminate the impact of incomplete stripe pattern on the image and improve the accuracy of recognition.
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