CAJ | 학술논문

通过对视频测速应用场景的分析,提出一种在机混车道中应用视频测速的方法.该方法首先采用二维图像标定的方法获得视频坐标与实际地面坐标之间的映射关系,针对机混车道的复杂场景,采用Lab颜色空间和形态学处理相结合的方法对车牌进行识别,准确地跟踪到目标车辆,有效地避免了其他运动物体的干扰,同时提出了采用模板更新的方式防止目标车辆跟丢.最后通过适当选取车辆经过检测区时的图像帧,获得车辆的位移及对应的时间间隔,从而获得高精度的速度测量结果.
통과대시빈측속응용장경적분석,제출일충재궤혼차도중응용시빈측속적방법.해방법수선채용이유도상표정적방법획득시빈좌표여실제지면좌표지간적영사관계,침대궤혼차도적복잡장경,채용Lab안색공간화형태학처리상결합적방법대차패진행식별,준학지근종도목표차량,유효지피면료기타운동물체적간우,동시제출료채용모판경신적방식방지목표차량근주.최후통과괄당선취차량경과검측구시적도상정,획득차량적위이급대응적시간간격,종이획득고정도적속도측량결과.
Through analysis of video speed measurement scenarios,a way to detect the running speed of vehicles in mixed road by video speed measurement algorithm is proposed in this paper,in which the two-dimensional image labeling method is adopted to achieve the mapping relation between video coordinates and corresponding actual ground coordinates. Aiming at the complex scenarios of mixing road,the method of combining Lab color space with morphology is used to recognize the license plate,track the object vehicle precisely,avoid the disturbance of any other moving objects. Besides,the mode to refrain from missing object vehicles by a method of template updates is proposed. The displacement of vehicles and corresponding time inter-vals are got by picking up the image frame that the vehicles crossed the detection zone,with which the result of high-accuracy velocity measurement can be obtained.