The Research Target Of Automatic Scoring System Based On Visual Inspection

In the military training of troops,the most basic is the shooting training,which is also the key to judge whether a soldier is qualified.At present,the main target of shooting training for the troops is the artificial target.This traditional reporting method is inefficient.The life safety of the target soldiers poses a threat,and there may be unfair phenomena.Therefore,it is very necessary to develop an automatic target system with high accuracy,real-time capability and to meet the requirements of military shooting training.It can not only promote the development of technology-based military,but also has considerable application prospects.The overall design of the automatic report system designed in this paper includes hardware and algorithm.The hardware part includes the selection of cameras,lenses,and the construction of an imaging system to ensure the quality of the target paper image and facilitate the detection of the algorithm part.The algorithm part is the most important part of the whole system,which is divided into four parts: target surface positioning,bullet hole identification,target line identification,and ring value determination.Target positioning: combined with the actual situation of the shooting range,the automatic target reporting system designed in this paper will place the imaging system below the ground and photograph the target paper image from the bottom up.This results in the shooting of the target paper image and the processing of the chest ring target area.There are some background areas.In order to facilitate the follow-up recognition,the Bastu target region is image segmented using the Ostu algorithm.Bullet hole identification: It is the core part of the whole algorithm part.By analyzing the bullet image,in order to be able to quickly identify the position of the bullet hole,the current image and the previous image are first subjected to image segmentation processing,and then the affine transformation method is used.The problem of registration between the current image and the previous image is achieved.Finally,sub-image subtraction is used to acquire the bullet hole information.However,due to some irresistible factors,there are some interference regions in addition to the bullet hole information after subtraction operations,using mathematical morphology.Open the operation to eliminate the interference area,leaving only the bullet hole information.Target line recognition: The edge detection algorithm is used to identify the loop targets of the thoracic ring target,and the 10-ring target line and the 9-ring target line are extracted by feature extraction to calculate the ring spacing and correction coefficient so as to more accurately calculate the ring value of the soldier shooting.Ring value determination: Firstly,the correction coefficient is used to correct the coordinates of the bullet center and the target center of the chest ring.Then the distance between the target center of the chest ring and the bullet center is calculated by a mathematical method.Since the radius of each ring of the chest ring target is equal to the sequence of the difference Therefore,according to the relationship between the distance between the chest center target center and the bullet center and the ring spacing,the ring value corresponding to the location of the bullet hole is determined.Based on MFC,this paper designs the human-computer interaction interface so that users can observe the shooting results more clearly and intuitively,and adopt targeted training methods to increase the shooting level of soldiers.After the establishment of the library,the study of theoretical algorithms,simulation of military training shooting environment,and simulation testing,this article designed the automatic reporting system with high accuracy,real-time,strong adaptability,able to meet the daily shooting training requirements,and low cost,The high efficiency ensures the fairness,fairness and openness of shooting training,and has a good application development prospect.