METHOD AND DEVICE FOR MEASURING FLIGHT PARAMETERS OF AN UNMANNED AERIAL VEHICLE

摘要

A method and a device for measuring flight parameters of an unmanned aerial vehicle (UAV) are provided, the method includes, capturing images and collecting an angular velocity of the UAC, extracting corner points from a current frame image, estimating an estimated area according to the angular velocity of the UAV, searching for a corresponding corner point in the estimated area, obtaining a speed of each of the corner points, obtaining a pixel velocity, and obtaining an actual speed of the UAV based on the pixel velocity and a flight altitude of the UAV.

主权项

1. A method of measuring flight parameters of an unmanned aerial vehicle (UAV), said method comprises:
capturing images and collecting an angular velocity of the UAV; extracting corner points from a current frame image; estimating, for each of the corner points in the current frame image, an estimated area in a previous frame image within which the corner point in the current frame image locates, according to the angular velocity of the UAV; searching for a corresponding corner point within each of the estimated areas in the previous frame image, according to the position of each of the corner points in the current frame image; obtaining a speed of each of the corner points according to the corner point in the current frame image and the corresponding corner point in the previous frame image; obtaining a pixel velocity according to the speeds of the corner points; and obtaining an actual speed of the UAV based on the pixel velocity and a flight altitude of the UAV.