Method and device for acquiring target position information, mobile device and control method thereof

Abstract

The invention provides a method and a device for acquiring the position information of an object, a terminal and a system. The method comprises steps: feature information of an associated matter is extracted from a first real-time image containing the associated matter, the position information of the associated matter is determined based on the feature information of the associated matter, and according to the position information of the associated matter, a light emitting unit is driven to project light to an area of the associated matter; a second real-time image containing the associated matter after the light is projected is acquired, and whether the second real-time image contains an object associated with the associated matter is judged; and when the object is determined to exist, the feature information of the object is extracted, and based on the feature information of the object, the position information of the object is determined. Through starting the light source and projecting light to a long and thin object, when the light is strong in daytime and the contrast degree between the long and thin object and the sky background is low, the contrast degree between the longand thin object and the sky background is increased, and an unmanned aerial vehicle can be prevented from impacting against the long and thin object and can be prevented from being damaged.

Description

technical field [0001] The present invention relates to the fields of positioning, image processing, and aircraft. Specifically, the present invention relates to a method, device, terminal, system, mobile device and control method for acquiring target position information. Background technique [0002] At present, with the continuous development of UAVs, UAVs have been used in agriculture, aerial photography, aerial surveys, etc. The safe flight of the drone can improve the service life of the drone. When the light intensity in the space is high, the contrast between the slender linear objects in the environment and the background of the environment will be small. It is integrated with the environment background in the image, so that the UAV cannot recognize the slender linear object from the captured image. In particular, the UAV recovers the depth information of the outdoor environment through the camera device. When the distance from the slender object is far away and th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially the small contrast between the linear object and the sky, which makes it difficult to detect the linear object in the image, which leads to the problem that the UAV is easy to collide with the linear object

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