单像素几何矩探测运动物体定位技术(特邀)  

Geometric moment detection with single-pixel for moving object localization(Invited)

作　　者：查林彬 时东锋 黄见 王英俭 Zha Linbin;Shi Dongfeng;Huang Jian;Wang Yingjian(School of Environmental Science and Optoelectronic Technology,University of Science and Technology of China,Hefei 230026,China;Key Laboratory of Atmospheric Optics,Anhui Institute of Optics and Fine Mechanics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;Advanced Laser Technology Laboratory of Anhui Province,Hefei 230037,China)

机构地区：[1]中国科学技术大学环境科学与光电技术学院,安徽合肥230026 [2]中国科学院合肥物质科学研究院安徽光学精密机械研究所中国科学院大气光学重点实验室,安徽合肥230031 [3]先进激光技术安徽省实验室,安徽合肥230037

出　　处：《红外与激光工程》2021年第12期51-57,共7页Infrared and Laser Engineering

基　　金：中国科学院青年创新促进会(2020438);中国科学院科技创新重点实验室基金(CXJJ-20S028);安徽省先进激光技术实验室青年基金(20192201)。

摘　　要：针对快速实时定位运动物体的需求,提出了一种使用几何矩探测的单像素快速定位运动物体的方法。该方法的核心是通过探测运动物体的质心实现快速定位运动物体。根据几何矩性质构造3个几何矩照明光,并照射运动物体,利用单像素探测器收集运动物体与调制光相互作用后的反射或透射光的强度值。根据单像素成像理论,探测强度值与物体的零阶和一阶几何矩值相对应。标识物体位置的质心参数可由物体的零阶和一阶几何矩值获取。结合数字微镜调制器(DMD)和时间抖动的方法产生几何矩照明光,利用所提方法在不成像的前提下分别实现了帧频约为500 fps和1 000 fps运动物体定位。所提方法获取质心的误差在1.63个像素以内,均方误差为0.118 3个像素。文中所提方法为使用单像素探测器实现快速追踪运动物体提供了一种新思路。In response to the demands of fast real-time positioning of a moving object, a single-pixel fast moving object positioning method using geometric moment detection was proposed. The key to the approach was to locate the moving object by detecting the centroid of the moving object. According to the properties of geometric moments, three geometric moment illumination lights were constructed and illuminated the moving object. A single-pixel detector was used to collect the intensities of the reflected or transmitted light after the moving object interacted with the modulated light. According to the theory of single-pixel imaging, the detected intensity values corresponded to the zero-order and first-order geometric moment values. The centroid that identified the object position parameter could be obtained by corresponding calculations from the zero-order and first-order geometric moment values. The proposed method could reach an approximately frame rate of 500 fps and 1 000 fps to position a moving object without imaging. The error of the centroid obtained by the proposed method was within1.63 pixels, and the mean square error was 0.118 3 pixels. The proposed method provided a new way for tracking of a fast-moving object.

关 键 词：单像素成像 质心 几何矩 

分 类 号：O439[机械工程—光学工程]