Beijing Boe Optoelectronics Technology Co., Ltd.

Boe Technology Group Co., Ltd.

Beijing Boe Technology Development Co., Ltd.

Railway Engineering Research Institute, China Academy of Railway Sciences Co., Ltd.

China Academy of Railway Sciences Co., Ltd.

Zehua Dong

Lili Chen

Hao Zhang

Minglei Chu

Hongzhen Xue

Jiankang Sun

Yukun Sun

Guixin Yan

Fuqiang Ma

Jinghua Miao

Yachong Xue

Shuo Zhang

Xuefeng Wang

Ziqiang Guo

Qingwen Fan

Zhanshan Ma

Chenxi Zhao

Xiangjun Peng

Yaoyu Lv

Bingxin Liu

Huidong He

Jian Li

Bo Liu

Gang Li

Chenru Wang

Lei Zhang

Yali Liu

Zhifu Li

Yakun Wang

Tao Jia

Guobing Yin

Yong Yao

Yu Cheng

Jian Cui

Yufang Zhang

Kun Yuan

Jiawei Fan

Pan Chen

Tao Wei

Gongming Chen

Xiaobing Li

Wenchao Zhang

Lining Du

Shuangquan Lei

Shiwen Huang

Hao Lan

Shengyong Zeng

Fei Xian

Wenxin Tan

Ning Xuan

Junjie Zeng

Provided are a system and a method for impact testing and monitoring of a high-energy flexible net. The system includes a vertical impact testing unit, a slope impact testing unit, an impact simulation unit, and an impact monitoring unit. The vertical impact testing unit includes a vertically positioned gravity wall. The slope impact testing unit includes a wall slope positioned perpendicularly to a second side of the gravity wall. A first side of the gravity wall and a slope surface of the wall slope are securely provided with a flexible net, respectively. The impact simulation unit includes an impact assembly and a lifting assembly. The impact monitoring unit is configured to monitor a deformation result and an internal force change result of the flexible net.

Systems and methods for impact testing and monitoring of high-energy flexible nets

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.

Data correction method and apparatus, electronic device and computer-readable storage medium

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.

Three-dimensional display apparatus and virtual reality device

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.

Method and apparatus for analyzing an imaging quality of an imaging system

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.

Method, apparatus and measurement device for measuring distortion parameters of a display device, and computer-readable medium

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.

Camera positioning method, device and medium

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.

Image processing method, device, and virtual reality display apparatus

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.

Image processing method and apparatus

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.

Spatial positioning method, spatial positioning device, spatial positioning system and computer readable medium

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.

Posture estimation method, posture estimation apparatus and computer readable storage medium

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.

Image display method and apparatus, electronic device, VR device, and non-transitory computer readable storage medium

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.

Gaze point compensation method and apparatus in display device, and display device

Growing community of inventors

Beijing, China

Zehua Dong