Title:
ZOOM TRACKING METHOD AND SYSTEM, LENS, IMAGING APPARATUS AND UNMANNED AERIAL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/092846
Kind Code:
A1
Abstract:
Disclosed are a zoom tracking method and system, a lens, an imaging apparatus and an unmanned aerial vehicle. The zoom tracking method comprises: executing a zoom process, and measuring the object distance of an imaging target in real time during the zoom process (S101); and a zoom lens passing a plurality of zoom positions during the zoom process, and executing the following operations at each zoom position: obtaining the image distance at the zoom position according to the focal length corresponding to the zoom position, the object distance that is measured in real time, and an imaging formula; and a focus lens moving to a focus position corresponding to the image distance (S102).
Inventors:
HAN SHOUQIAN (CN)
PAN ZIYI (CN)
PAN ZIYI (CN)
Application Number:
PCT/CN2019/118431
Publication Date:
May 20, 2021
Filing Date:
November 14, 2019
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H04N5/232
Foreign References:
| CN106170064A | 2016-11-30 | |||
| CN110073652A | 2019-07-30 | |||
| CN101140349A | 2008-03-12 | |||
| CN101236348A | 2008-08-06 | |||
| CN109983372A | 2019-07-05 | |||
| JP6503607B2 | 2019-04-24 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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