發(fā)布時間：2019-05-21 23:45

【摘要】：近年來，基于圖像處理的交通信息檢測技術(shù)成了交通領(lǐng)域研究的熱點。作為交通信息檢測的重要組成部分，圖像處理的車速檢測系統(tǒng)有著廣泛的應(yīng)用前景。因此，進行車速檢測方法的研究具有重要的意義。 論文對基于圖像處理的車速檢測系統(tǒng)和車速檢測算法進行了研究，設(shè)計了適用于車速檢測的一維和二維攝像機標(biāo)定方法。論文的工作主要內(nèi)容有以下幾點： 1.視頻車速檢測系統(tǒng)。論文對車速檢測系統(tǒng)進行了詳細的研究，分析現(xiàn)在存在的難點，針對本文設(shè)計了車速檢測系統(tǒng)的硬件結(jié)構(gòu)和軟件結(jié)構(gòu)。 2.攝像機標(biāo)定方法。將基于線性模型的一維標(biāo)定擴展到二維標(biāo)定，提高了攝像機標(biāo)定的精度。 3.車速檢測算法。論文通過圖像處理提取目標(biāo)車輛，獲得目標(biāo)車輛的特征點，對特征點運行軌跡進行擬合，結(jié)合攝像機標(biāo)定將每一幀之間的像素距離轉(zhuǎn)化為實際距離，最后對得到的距離和時間數(shù)據(jù)進行數(shù)據(jù)擬合，獲得目標(biāo)車輛的行駛速度。 本文設(shè)計了一種實用的車速檢測方法，，在城市道路中進行了測試，能夠?qū)崿F(xiàn)車輛瞬時速度的實時檢測，在實際應(yīng)用中精度達到95%以上。本設(shè)計可以滿足實際應(yīng)用要求，可應(yīng)用于城市道理車速檢測，車速調(diào)查等方面。
[Abstract]:In recent years, traffic information detection technology based on image processing has become a hot research topic in the field of traffic. As an important part of traffic information detection, the speed detection system of image processing has a wide range of application prospects. Therefore, it is of great significance to study the speed detection method. In this paper, the speed detection system and speed detection algorithm based on image processing are studied, and a one-dimensional and two-dimensional camera calibration method suitable for speed detection is designed. The main contents of this paper are as follows: 1. Video speed detection system. In this paper, the speed detection system is studied in detail, the existing difficulties are analyzed, and the hardware structure and software structure of the speed detection system are designed. 2. Camera calibration method. The one-dimensional calibration based on linear model is extended to two-dimensional calibration, and the accuracy of camera calibration is improved. 3. Speed detection algorithm. In this paper, the target vehicle is extracted by image processing, the feature points of the target vehicle are obtained, the running trajectory of the feature points is fitted, and the pixel distance between each frame is transformed into the actual distance combined with camera calibration. Finally, the distance and time data are fitted to obtain the speed of the target vehicle. In this paper, a practical speed detection method is designed, which is tested in urban roads, which can realize the real-time detection of vehicle instantaneous speed, and the accuracy is more than 95% in practical application. This design can meet the requirements of practical application, and can be used in urban reasonable speed detection, speed investigation and so on.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U495

【參考文獻】

相關(guān)期刊論文 前10條

1 李宇成;陰亮;王目樹;賈雁;;基于圖像的運動車輛速度測量[J];北方工業(yè)大學(xué)學(xué)報;2008年01期

2 邵丹,韓家偉;YUV與RGB之間的轉(zhuǎn)換[J];長春大學(xué)學(xué)報;2004年04期

3 李暉;賈輝然;牛曉輝;宋士普;;智能交通系統(tǒng)的研究現(xiàn)狀及發(fā)展趨勢[J];產(chǎn)業(yè)與科技論壇;2008年08期

4 王樹欣 ,伍湘彬;地感線圈在交通控制領(lǐng)域中的應(yīng)用[J];電子世界;2005年08期

5 楊粵湘;雷達測速在公安交通管理中的應(yīng)用[J];廣東公安科技;2005年01期

6 梁琳;;淺談我國智能交通系統(tǒng)的發(fā)展[J];廣西質(zhì)量監(jiān)督導(dǎo)報;2008年10期

7 王育慷;超聲波原理與現(xiàn)代應(yīng)用探討[J];貴州大學(xué)學(xué)報(自然科學(xué)版);2005年03期

8 馬慧明;;車速檢測技術(shù)述評[J];中北大學(xué)學(xué)報(自然科學(xué)版);2007年S1期

9 張曉東,姜桂艷,王江鋒,Q

本文編號：2482504