The Study Of Extraction Method Based On Countryside Plowland Boundary Of Remote Sensing Images

Third Plenary Session of the Party’s Eighteen decision clear the orientation and task of rural land reform. In the recent years, the central government from safeguarding the legitimate rights and interests of farmers and rural social harmony and stability of the height, clear put forward the objectives and task of the rural land ownership. Since 2010, the street of four different types of pilot counties, towns were selected trial plot,like GaoLin county, Xiao Jin viliage, Lin Tong village Xiang Qiao street, Ren Zong street of shaanxi province,develop rural property rights system reform pilot work.This paper chooses Shen Dong village Xiang Qiao street village as a study of the test area.The study of cultivated land boundary extraction method based on remote sensing image has a strong practical significance; to find a method for automatic extraction of cultivated land boundary,and to use land boundary map to assist complete rural land ownership and other related work to achieve lower costs,shorten the working period and other practical problems.Considering that the countryside plowland of necessity in combine with own research need, such research project is put forward. Such article mainly in respect of methods to extract the plowland boundary information states as follows in detail, including edge inspection methods for Roberts operator, Sobel operator, Prewitt operator, Laplace operator, LOG operator and Canny operator, makes the particular theoretical statement correspondingly for each kind of the concerned operator and experiment emulation in the plowland at two experimental zones which are respectively located in the highland and plain, proceeds the analysisand comparison for the edge inspection results of the plowland in experimental zones through various methods as well as discusses the advantage and disadvantages of each method one by one.Such following points have been completed in this article during the research:(1) researching and summarizing plentiful related information;(2)Emphasizing on introducing the judgement criteria of Canny operator as well as the traditional Canny edge detection method which is achieved by programming via utilizing the MATLAB 2008 as the development platform, making the emulation test on two experimental plowland and getting the favorable experiment results;(3)Analyzingin combine with the above mentioned work the advantages and disadvantages of the traditional edge detection method of Canny when extracting the boundary information of the plowland in such two experimental zones, putting award an improved edge detection method of Canny in combine with the default that actual plowland effect that such article researches and extracts have on the such method;(4)Making the evaluation for the emulation experimental results through the methods put forward in such article to extract the plowland edge information by the objective observation with the eyes and subjective evaluation. Several other results than the traditional Canny operator of arable boundary extraction of some ideal, to make improvements to the Canny operator to extract the better.