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Detection and Removal of Clouds and Their Shadows from Remote Sensing Images(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2007年第03期
Page:
300-303
Research Field:
水资源与地质工程
Publishing date:

Info

Title:
Detection and Removal of Clouds and Their Shadows from Remote Sensing Images
Author(s):
TIAN Yang-jun; XUE Chun-ji
1. School of Earth Sciences and Resources, Chang'an University, Xi'an 710054, Shaanxi, China; 2. Key Laboratory of Remote Sensing Image of Geological Engineering and Mineral Resources, China University of Geoscience, Beijing 100083, China
Keywords:
remote sensing images;  cloud;  shadow;  detection;  removal
PACS:
TP751.1
DOI:
-
Abstract:
This paper studies the detection and removal of clouds and their shadows from remote sensing images based on the theory of image processing and analyzing, and sets up the image model and region restoring model. The image segment is made by the method of thresholding. Tests on removal of clouds and their shadows from ETM remote sensing images of the year 2002 with TM remote sensing images of the year 1988 represents the features of objectives on the Earth's surface in clouds and their shadow region. The results show that, it is found that the computation method is simple and effective by adopting threshold method that the threshold value is chosen according to the shape of histogram. Selecting proper gray scale ratio of twin remote sensing images may obtain ideal restoring results, which may represent the objectives on the Earth's surface in the clouds and shadow, and upgrade the application od remote sensing images.

References:

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Last Update: 1900-01-01