The Research Of Radar Image Based On Vectorization

At present,the navigation radar generally forms the echo image in the form of the bitmap.However,the image of this format has obvious shortcomings:it needs relatively large storage space,it is not easy to carry out various image transformation processing,and the distortion will appear after amplification.Vector-formatted images do not have these shortcomings in the bitmap.In this paper,a process of radar image vectorization with excellent performance in terms of accuracy and processing efficiency is obtained by comparing the preprocessing,edge detection,feature point detection and element fitting of radar points map.In this paper,by recording the feature points that can be used to characterize the image contour information,the purpose of greatly reducing the amount of image data is achieved,thereby reducing the information storage space.An image with smoothing effect and closer to the real edge information is obtained by using the Bezier curve to fit the edge of the image.The real-time vectorization effect is achieved by taking the program design method of vectorizing the fan-shaped area of the radar image in turn.By using the standard vector format developed by the World Wide Web Consortium,it is convenient to carry out pseudo-color processing for the closed area in the image.The main contents of this paper are as follows:The basic principle of vectorization technology is studied,and the process of vectorization of radar image is summarized.The analysis and pretreatment of collected radar images data.Including the ori-ginal data format and storage,the formation principle of the radar bitmap,the radar image filtering and the radar image binarization and hierarchical processing.The studies of radar image edge detection methods.Finally,an edge detection algorithm based oin edge tracking is selected as the edge detection method of radar image.The studies of radar image points feature detection methods.Including the conventional and a points feature detection based on Bezier curve.Then,the feature points of the extracted radar images are fitted by Lusing the Bezier curve.Design and realization of radar image vectorization processing system.Includi-ng service processing procedures,customer processing procedures and manual vector processing procedures,respectively to achieve real-time vectorization processing functi-on,automatic vectorization processing and artificial vectorization processing function.