摘要:介紹了一種基于機器視覺的自動報靶系統(tǒng),該系統(tǒng)利用CCD攝像機不間斷地對靶面進行觀測,根據(jù)采集的靶面圖像的特點和變化,利用計算機圖像識別技術檢測靶面圖像中的真實彈點,然后通過彈點在靶面圖中的位置來對彈點區(qū)域進行編碼。在觀測過程中,采用圖像灰度配準與增強技術、圖像的幾何配準技術和小波變換等算法來解決由于光照變化、大風等干擾因素對識別精度的影響。在實際應用中,能夠達到較高精度,并能大大減少錯報和漏報的情況,該系統(tǒng)精度高、成木低、完全可靠,能夠很好地應用于部隊訓練和射擊比賽中有著重要的實際意義和良好的應用前景。
關鍵詞:自動報靶系統(tǒng);機器視覺;圖像識別;圖像配準;圖像增強
中圖分類號:TP212.12文獻標識碼:A文章編號:1009-3044(2008)33-1500-02
Summary on Automatic Target-scoring System
HUANG Ming, Wang Hao-hua, LIANG Xu
(School of Software Technology, Dalian Jiaotong University, Dalian 116028, China)
Abstract: An automatic target-scoring system is proposed, which based on machine vision. CCD camera was used to observe targets’ surface continuously. According to the feature and change of the images of targets’ surface observed by CCD, the technology of computer pattern recognition was used to detect the position of real shell in the target surface. Then the position was described in digital by coding target surface.In the process of observation, the technology on enhancement and matching of gray-scale, image matching technology in geometry, and wavelet transform algorithms were used to solve the effect on the accuracy of the identification due to changes in light, wind, and other factors. In practice, the system can achieve ideal accuracy, reduce the misstatements and omissions greatly. It was also high-precision, low-cost,and reliable system, can be used in military drill and shooting competitions. It will be meaningful and have good prospect.
Key words: automatic target-scoring system; machine vision; imagine recognition; imagine matching; imagine enhancement
1 引言
在專業(yè)與非專業(yè)軍事訓練中,實彈射擊是最基本的訓練項目。傳統(tǒng)的實彈射擊采用人工報靶。傳統(tǒng)人工報靶主要有四個方面的不足:1)依賴于報靶者的判靶經(jīng)驗,效率比較低。2)當靶板上彈著點多時,報靶員很難識別新舊彈孔,報靶誤差極大,直接影響射擊訓練質量。3)射擊未完全結束時,補靶員現(xiàn)身靶壕外或在補靶員察看靶板報靶和補靶時,射擊位管理者若稍有疏忽,就易出現(xiàn)槍支走火,造成人員傷亡,安全隱患極大。4)容易出現(xiàn)弄虛作假的現(xiàn)象。為了克服傳統(tǒng)人工報靶有不足和滿足軍事訓練現(xiàn)代化需求,提高部隊射擊水平,自動報靶的研究和應用對推進軍隊現(xiàn)代化將具有普遍意義。……