Active grid for feature extraction in remote sensing imagery

Yu Zhang; Xiaodong Zhang

doi:10.1117/12.832959

30 October 2009 Active grid for feature extraction in remote sensing imagery

Yu Zhang, Xiaodong Zhang

Proceedings Volume 7495, MIPPR 2009: Automatic Target Recognition and Image Analysis; 74954R (2009) https://doi.org/10.1117/12.832959
Event: Sixth International Symposium on Multispectral Image Processing and Pattern Recognition, 2009, Yichang, China

Abstract

In this paper, an enhanced active contour, namely active grid, is proposed and its application in extracting boundaries from targets which have adjacency topology, such as buildings, fields, road and river etc, is further introduced in more details. In fact, boundaries extraction by general active contour may be regarded as one kind of simplified active grid, which contains only single region. The basic principle of active grid is: an initial grid given by either manual or automatic methods in order to provide the correct topological structure and a starting grid. Then, based on an iterative algorithm, this grid can evolve according to the information of local image. Nodes (or boundaries) of grid are driven by forces of statistics from different grid region in target image. The evolvement of active grid can be represented by an energy function, as a result, the extreme value of energy is corresponding to the correct extraction of target. The experiment results indicate that the active grid is very effective in target extraction from imagery.

Citation Download Citation

Yu Zhang and Xiaodong Zhang "Active grid for feature extraction in remote sensing imagery", Proc. SPIE 7495, MIPPR 2009: Automatic Target Recognition and Image Analysis, 74954R (30 October 2009); https://doi.org/10.1117/12.832959

ACCESS THE FULL ARTICLE

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: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Image segmentation

Remote sensing

Feature extraction

Target detection

Roads

Image analysis

Buildings

Show All Keywords

Keywords/Phrases

Search In:

Publication Years