Modern warfare is developing in the direction of high technology and information.How to scientifically and timely understand the changes in the battlefield has aroused the attention of the military of all countries.Battle damage assessment has become an indispensable part of military operations.The paper has carried out in-depth research on the target change detection algorithm and damage assessment model for the actual situation of the battlefield strike,and obtained good experimental results.The details are as follows:An algorithm framework of image change detection algorithm based on pre-detection and re-detection is proposed.In the pre-detection part,This method obtains difference images by comparing the similarity of texture features of two images taken before and after attack.The pixels of the texture difference image are divided into changed,unchanged and unknown classes by FCM algorithm.In the re-detection part,the classification problem of unknown pixel points in pre-detection results is studied,and a change detection algorithm based on PCANet model is proposed.This method combines the images of the changed and unchanged class in the pre-detection to create the sample images to train the PCANet model.Finally,the trained PCANet model is used to detect the change between images taken before and after attack.This method solves the problem that the actual change area of the image part is difficult to detect.Experiments show that the proposed change detection algorithm obtains better results than traditional algorithms.A fuzzy evaluation model combining hierarchical target system is proposed.Aiming at the problems of the target damage information,the target knowledge base of hierarchical target system is established to comprehensively analyze the physical and functional damage information of the target to comprehensively characterize the damage situation.The comprehensive damage assessment of the target based on the concept of fuzzy evaluation solves the problem of how to quantitatively analyze the damage assessment.Experiments show that the damage assessment method proposed by this paper has a high match rate result with expert opinions.Developed the comprehensive damage assessment software based on the change detection algorithm and the fuzzy evaluation model combining hierarchical target system,and it can make the damage assessment of various typical targets. |