Mr. Xixi Meng Profile

Xixi Meng

at Zhejiang Univ

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 26 August 2010 Paper

A method of autofocus for remote sensing camera

Xixi Meng, Huajun Feng, Zhihai Xu, Qi Li, Yueting Chen

Proceedings Volume 7813, 78130L (2010) https://doi.org/10.1117/12.859990

KEYWORDS: Cameras, Remote sensing, Image registration, Image analysis, Device simulation, Fourier transforms, Satellites, Computer simulations, Imaging systems, Image enhancement

Read Abstract +

Because of the flight of the remote sensing camera in the orbit, the successive images of the scenes captured by the remote sensing camera are different at any time. So it is difficult for the camera to implement autofocus. In this paper, an auto-focusing method in the remote sensing camera is proposed based on successive two images captured in a short time which have an overlapped region where scenes are same. Firstly, the space camera moving in the orbit, shoots one picture every time the camera adjusts its focus, and then we can obtain a sequence of images after several times, from which the displacement and the overlapped regions of two adjacent images can be calculated by image registration algorithm. We can take every two adjacent images as a group. Therefore, every image has a value of focusing accuracy by performing a sharpness evaluation function on the overlapped region of each image. Finally, according to the transfer characteristic of evaluation values of every two partly overlapped images, we can unify the evaluation values in a same merit evaluation system. And then find the maximum value of image evaluation values in a same evaluation system, so we can find the accurate focus. Simulation experiment shows that this method works pretty well in auto focusing when relative motion between the camera and the object is existed. This method can be used in aerial camera and remote sensing camera.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years