The Opencast Limestone Mine Information Extraction Based On Remote Sensing

Excessive mineral resources exploitation has led to serious pollution.To protect the seedlings is a matter of great urgency and mine management is at all imminent.It is convenient using remote sensing information extraction technique to obtain information of mine development.In this paper,methods in limestone mining information extraction has been researched.And the method used by predecessors has been improved to carry out an efficient and accurate model for open limestone mining information extraction.Characteristics and algorithms for classification are analyzed in this paper.Different algorithms appied for mine information extraction based on object-oriented method are made use of and compared to the traditional methods.The optimal classification model which can classify the open limestone mine is constructed.And the multiple Landsat images are utilized for open limestone mining information extraction in research area.The main results and innovation points are as follows:1)The texture variance index model which can highlight the open limestone mine has been constructed.Combined with existing spectral and spatial characteristics,experi-ment based on the object-oriented method to conduct mining boundary information extr-action.It turns out that very kind of accuracy has been significantly improved when using texture variance index as a rule of limestone mining information extraction.2)Comprehensive correlation turns out that the object-oriented decision tree classification based on is better than nearest neighbor fuzzy classification in terms of efficiency and accuracy.And both of them have obvious advantage in accuracy and graphics.3)Seven periods open limestone mining information extraction from 1987 to 2015 in Guye District was carried out by the use of the method in this paper.The results show that the area of open limestone mining has been increasing continuously.The most rapid growth occurred between 1998 and 2009,and the mining rate gradually decreased after 2009,which is all about the policy of national and local government.