Sun Yat-senuniversity

Alibaba Group Holding Limited

Sijia Chen

Xiying Li

Yuanyuan Li

Xiaoli Liu

Zhewen Su

Ruizhao Lin

Weihan Huo

The present invention discloses a method, device and browser for presenting recommended news, and an electronic device. Said method for presenting recommended news comprises: displaying a map; displaying recommended news tags on the map; receiving an operation of a user carried out in respect of the recommended news; and displaying a corresponding recommended news list. A new method for presenting recommended news is provided according to the embodiments of the present invention.

Method, device and browser for presenting recommended news, and electronic device

An unmanned aerial vehicle calibration method and system based on a color 3D calibration object. The method comprises: placing a color chequerboard 3D calibration object in a scene to be photographed; using an unmanned aerial vehicle to photograph images of the color chequerboard 3D calibration object from at least three different orientations; using a vanishing point theory to linearly solve the internal parameters of a camera of the unmanned aerial vehicle according to the photographed images of the color chequerboard 3D calibration object; and using a coordinate projection transformation method to determine a geometric constraint relationship between a spatial position and the images of the camera of the unmanned aerial vehicle according to the internal parameters of the camera of the unmanned aerial vehicle.

Unmanned aerial vehicle calibration method and system based on color 3D calibration object

Disclosed are an aerial image acquisition method and a system for investigating a traffic accident site by an unmanned aerial vehicle. The method comprises selecting a corresponding unmanned aerial vehicle low-altitude shooting scheme of traffic accident site according to whether three-dimensional site reconstruction or site animation simulation is needed; selecting and calculating shooting parameters of the unmanned aerial vehicle according to the unmanned aerial vehicle low-altitude shooting scheme selected; and shooting the traffic accident site according to the unmanned aerial vehicle low-altitude shooting scheme selected and the shooting parameters of the unmanned aerial vehicle, to obtain an aerial image sequence of the traffic accident site.

Aerial image acquisition method and system for investigating traffic accident site by unmanned aerial vehicle

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Guangzhou, China

Sijia Chen