The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2019
Filed:
Apr. 10, 2014
Sz Dji Technology Co., Ltd., Shenzhen, CN;
Wancheng Zhou, Shanghai, CN;
Ke Sun, Shenzhen, CN;
Yun Yu, Shenzhen, CN;
Liming Huang, Shenzhen, CN;
SZ DJI TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
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.