Huawei Technologies Co., Limited

Arashi Vision Inc.

Tencent Technology (shenzhen) Company Limited

Shenzhen Lianlisolar Co., Limited

Zte Corporation

Future Wei Technologies, Inc.

Shanghai Flextail Technology Co., Ltd.

Cong Chen

Jingkang Liu

Wenjie Jiang

Weipeng Zeng

Guang Yang

Qinghua Zhong

Liyou Wen

Chuan Xu

Wei Ruan

Zhuo Guo

Sulin Yang

Jinhui Wang

Ting Wang

Jingfei Lv

Jinlin Cai

Huiling Li

Qian Wang

Jinrong Yin

Shu Yuan Li

Jianmin Gong

Xiaoping Zhou

Dan Wang

Weiyang Wang

Kenji Ishibashi

Chao Zhong

Shufang Dong

Gonghong Xiang

Zhu Cheng

Yibin Guo

Xiaonan Li

Guoliang Hu

Chengtao Zhou

Hua Chen

Chonghua Fei

Yongyi Wang

Fangming Fang

Hujun Li

Jinghui Liu

A Wi-Fi communication method and a device are disclosed, and relate to the field of wireless communication technologies. According to the method, a first communication device is configured to: generate a physical frame, and send the physical frame. The physical frame includes signaling information and a plurality of training sequences used for channel estimation, the signaling information indicates a quantity of space-time streams and a quantity of the plurality of training sequences, and the quantity of the plurality of training sequences is greater than the quantity of space-time streams. This helps improve accuracy of an algorithm such as channel estimation in a communication system, to improve a demodulation capability of a communication device, and ensure data demodulation effect.

Wi-Fi communication method and device

The LED lighting equipment includes a heat dissipation module having a main housing with a medium outlet and a medium inlet, a fan disposed in the main housing, and a lighting assembly. The main housing surrounds the lighting assembly to define a fluid channel between the medium inlet and medium outlet, such that a cooling medium is driven by the fan to flow along the fluid channel to carry away heat from the lighting assembly. The lighting assembly might include a plurality of lamp beads arranged on a light board disposed on a support; the main housing might include a first housing containing the fan and the medium inlet, and a second housing containing the lighting assembly and the medium outlet.

LED lighting equipment with heat dissipation module

Integrated solar panel

Solar panel

A camera lens smoothing method includes: obtaining a current video frame of a camera video and gyroscope information of the current video frame, and calculating a current first rotation matrix; conducting smoothing on the first rotation matrix, and calculating a third rotation matrix; conducting viewpoint decomposition on the current video frame according to the third rotation matrix, and calculating a fourth rotation matrix; and conducting 3D rotation on the current video frame according to the fourth rotation matrix, and rebuilding an anti-shake video.

Camera lens smoothing method and portable terminal

A video information processing method is performed by a computer device. The method includes: receiving source video information transmitted by a server, the source video information including a first user identifier (ID) transmitting a source video, a source video ID, and a storage location of the source video corresponding to the source video ID in the server; obtaining special effect information on the source video; generating, according to the storage location, the source video ID, and the special effect information, interaction video information associated with the source video ID, the interaction video information including the source video ID, the storage location, the first user ID, and the special effect information; and uploading the interaction video information to the server for storage, so that the server transmits the interaction video information to a terminal corresponding to the first user ID. Videos transferred based on solutions of embodiments of this application include rich information.

Video information processing method, computer equipment and storage medium

The present invention relates to the field of panoramic cameras, and provides a method for tracking a target in a panoramic video, and a panoramic camera. The method is used to track a target in a panoramic video on the basis of a multi-scale correlation filter, and employs automatic electronic pan-tilt-zoom technology. The present invention provides more robust tracking, faster processing speeds, a greater range of application in different tracking scenarios, and can be used to ensure that a tracked target is always at the center of the screen.

Method for tracking target in panoramic video, and panoramic camera

The present invention is applicable to the field of videos. Provided are a panoramic video anti-shake method and a portable terminal. The method comprises: acquiring world coordinates of any reference point in a world coordinate system in real time, and also acquiring the corresponding camera coordinates of the reference point in the portable terminal and an angular velocity value of a gyroscope at a current state in the portable terminal; smoothing the motion of a camera by using an extended Kalman filter; decomposing the smoothed motion, synthesizing the motion into a virtual lens motion in an ePTZ mode, and calculating a rotation amount of the virtual lens; and re-projecting an original video according to the rotation amount of the virtual lens and a rotation matrix for converting from the camera coordinates to the world coordinates, so as to generate a stable video.

Panoramic video anti-shake method and portable terminal

The present invention is applicable to the field of videos, and provides a panoramic video anti-shake method and a portable terminal. The method comprises: obtaining world coordinates of any reference point in a world coordinate system in real time, and simultaneously obtaining camera coordinates corresponding to the reference point in the portable terminal and an angular velocity value of a current state of a gyroscope in the portable terminal; smoothing the motion of a camera using an extended Kalman filter; decomposing the smoothed motion to synthesize virtual lens motion of a free lens mode, and calculating the rotation amount of the virtual lens; and re-projecting an original video to generate a stable video.

The present invention provides an anti-shake method for a panoramic video, which comprises: obtaining, in real time, an output video frame, a fisheye image corresponding thereto, a pixel timestamp in the video frame, and a corresponding camera gyroscope timestamp; synchronizing the pixel timestamp in the video frame with the corresponding camera gyroscope timestamp, and calculating a rotation matrix of the camera movement in the camera gyroscope timestamp; smoothing the camera movement and establishing a coordinate system of a smooth trajectory; correcting the fisheye image distortion; and rendering the fisheye image by means of forward rendering to generate a stable video. According to the present invention, the rolling shutter distortion of a panoramic video sequence can be corrected, the image distortion caused by the rolling shutter of a CMOS can be corrected, and the rolling shutter is eliminated, thereby achieving a better anti-shake effect of a video image.

Anti-shake method for panoramic video, and portable terminal

Examples in this application disclose a focusing method and apparatus applied to a terminal device, and the terminal device. One example method includes detecting whether a current frame includes a target object, where the target object is one of preset objects on which focusing needs to be performed. When the current frame includes the target object, a determination is made as to whether the target object is in a motion state. When the target object is in the motion state, tracking focusing is performed by using phase detection PD information with a variable filtering length. When the target object is in a static state, stable focusing is performed by using PD information obtained in an adaptive fixed PD configuration mode.

Focusing method and apparatus applied to terminal device, and terminal device

Provided in the present invention are a method for achieving a bullet time capturing effect and a panoramic camera. The method comprises: acquiring a panoramic video captured when a panoramic camera rotates around a capture target; acquiring from within the panoramic video hemispherical images close to the side of the capture target; splicing the hemispherical images to generate a spliced image; and fixing a viewpoint of the spliced image, thus achieving a bullet time capturing effect. According to the present invention, only one panoramic camera is needed to be able to capture the bullet time capturing effect, so that the capturing cost of the bullet time capturing effect in the present invention is low. Meanwhile, since the bullet time capturing effect is obtained by means of a panoramic video being captured when a panoramic camera rotates around a capture target and processing being carried out on the panoramic video, the precision is high.

Method for achieving bullet time capturing effect and panoramic camera

The present invention is applicable to the field of videos. Provided are an anti-shake method and apparatus for a panoramic video, and a portable terminal. The method comprises: acquiring, in real time, a current state timestamp, an accelerometer numerical value and an angular velocity numerical value of a gyroscope in a portable terminal; performing estimation using extended Kalman filtering combined with the accelerometer numerical value and the angular velocity numerical value to obtain an amount of rotation of the portable terminal to a world coordinate system; synchronizing the timestamp of the gyroscope with a timestamp of a panoramic video frame; performing quaternion interpolation on the state of the gyroscope to acquire a rotation matrix corresponding to the panoramic video frame; and rotating a panoramic image according to the current rotation matrix to generate a stable video frame.

Anti-shake method and apparatus for panoramic video, and portable terminal

A time synchronization method and system, and a network device, where the method includes receiving, by a second network device, a first packet from a first network device, where the first packet includes a first service frame and a first time stamp (T), the first service frame carries a system clock of a radio equipment control (REC), obtaining, the system clock of the REC according to the first packet, sending, according to the system clock of the REC, the first service frame extracted from the first packet to a radio equipment (RE), recording a second time stamp (T) at which the first service frame is sent, and determining, by the second network device, a transmission delay (T) according to T=T&#x2212;T. Hence, a delay between the REC and the RE remains unchanged.

Time synchronization method and system, and network device

Growing community of inventors

Shenzhen, China

Cong Chen