Please wait a minute...
img

Wechat

Remote Sensing Technology and Application  2003, Vol. 18 Issue (4): 254-257    DOI: 10.11873/j.issn.1004-0323.2003.4.254
    
Tracing Edge of Change Plot for Dynamic Monitroing
FENG De-jun1, LI Yong-shu1, SHEN Jing-shi2
(1.Geographic Information Engineer Center of Southwest Jiaotong University,Chengdu610031,China;
2.Sichan Institute Land Survey and Plan,Chengdu610031,China)
Download:  PDF (0KB) 
Export:  BibTeX | EndNote (RIS)      
Abstract  

Change information, which automatically detected by land using dynamic monitoring, is commonly from color images or gray images, and its gray threshold is distributed in a certain range. In order to rapidly extract change information, and expediently manage monitoring data using GIS software,research should do to express change information with vector data automatically. Since image including change information contain complicated background, it is a difficult thing to extract directly edge of change information from the image, so it is necessary to segment change information from the image, which is a bi-value process, then tracking vector edge for change information. The threshold segmentation arithmetic
is used to bi-value the image in this thesis, and an eight directions arithmetic is optimized to tracking edge for change information, and vector edge is judged to ensure it is inside or outside to confirm range of change information and to make sure topology relationship among edges. Last, displaying vector map and images containing change information and produced automatically in other methods together, so edit is done for vector map to enhance precision. Comparing to manual drawing vector data and verifying in field, our method is feasible, and data has reliable precision.

Key words:  Dynamic monitoring      Remote sensing      Vector boundary      Land using       
Received:  14 March 2003      Published:  24 November 2011
TP 75  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors

Cite this article: 

FENG De-jun, LI Yong-shu, SHEN Jing-shi. Tracing Edge of Change Plot for Dynamic Monitroing. Remote Sensing Technology and Application, 2003, 18(4): 254-257.

URL: 

http://www.rsta.ac.cn/EN/10.11873/j.issn.1004-0323.2003.4.254     OR     http://www.rsta.ac.cn/EN/Y2003/V18/I4/254

〔1〕 燕琴,张继贤,孙晓霞.IKONOS数据在土地利用动态监测中的应用方法研究〔J〕.测绘科学,2002,27(2):40~42.
〔2〕 TD/T 1010-1999,土地利用动态遥感监测规程〔S〕.1999.
〔3〕 章毓晋.图像分割〔M〕.北京:科学出版社,2001.
〔4〕 杨哲海,刘健.基于规则格网数据的区域边界矢量化算法〔J〕.测绘学院学报,2000,17(1):67~69.
〔5〕 庞正华,刘秀军.数字筛去处二值图像中斑点的方法〔J〕.晋中师范高等专科学校学报,2002,19(1):24~25.
〔6〕 崔凤魁,张丰收,白露,等.二值图像目标邻域点法边界跟踪算法〔J〕.洛阳工学院学报,2001,22(1):28~30.

No Suggested Reading articles found!