Title :
An algorithm for eliminating the isolated regions based on connected area in image classification
Author :
Jianghong, Song ; Zhongming, Zhao ; Qingye, Zeng ; Yanfeng, Wei
Author_Institution :
Inst. of Remote Sensing Applications
Abstract :
It is well known that the results of remote sensing image classification contain many small isolated regions. These isolated regions need to be eliminated and merged into the existing classes in the post-processing. The most critical issue among all is how we could recognize the isolated regions, and what strategy we should adopt in automatic elimination. We present in this paper an algorithm for isolated regions´ recognition based on connected area, in isolated region generation, we adopt an improved area filling algorithm in computer graphics. In automatic elimination, we propose a merge strategy which is based on the number of immediate pixels. Experimental results show that our recognition algorithm and merge strategy can effectively and automatically eliminate the isolated regions in the results of remote sensing image classification
Keywords :
computer graphics; geophysical signal processing; geophysical techniques; image classification; merging; remote sensing; area filling algorithm; computer graphics; connected area; image classification; isolated region elimination; isolated region generation; isolated region merging; remote sensing; Cities and towns; Classification algorithms; Computer graphics; Content addressable storage; Filling; Image classification; Image recognition; Merging; Oceans; Remote sensing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-8742-2
DOI :
10.1109/IGARSS.2004.1370343