Applying polygon synthesis indicator method for the integrated index calculation,regional differences of the 11 coastal provinces are evaluated for marine resources utilization benefits analysis.

In this paper,a method about contour extraction of regular targets in images is proposed,which is based on an improved rectangle fitting method and a polygon fitting method.

In the process of identification,the extraction and the outline of the polygon fitting algorithm are used to automatically search for images to identify and track targets.

In order to solve the problem,that is,the traditional methods of polygonal fitting based on mergence are very sensitive to the "burr" at the boundary,and the area encircled by the contour and the fitting polygon is hard to be controlled,a new drawing method for the arrangement of the leather image contour is proposed.

A simple and highly efficient polygonal fitting arithmetic is inroduced,and the arithmetic can avoid repeating calculation during traveling object image boundary data and all polygonal fitting points can be computed without the method of recursion call,and benefits to computer image realtime process and online test.

This paper presents an polygonal fitting method to image contour based on mergence.

Urban polygon aggregation algorithms based on delaunay trigonometry network;