Multi‐viewpoint parabolic reflector based panoramic vision system was presented ,because of the disadvantages of the parabolic reflector and hyperboloid reflector based panoramic vision systems which are used most widely in the single viewpoint curved reflector based panoramic vision system .The distribution of the system viewpoint was first analyzed ,and then the param‐eter model of system imaging was established .The projection point was solved using single viewpoint curved reflector based pano‐ramic vision system by analogy and the caustic surface’s properties was analyzed .Secondly ,the relationship between parameters of the maximum elevation ,the maximum detection horizontal range and resolution was established ,and the influence factors were analyzed .Based on these ,a prototype of multi‐viewpoint parabolic reflector based panoramic vision system was designed with lower cost ,higher installation accuracy and better imaging quality .Finally ,the maximum elevation ,maximum horizontal detec‐tion range and the resolution were verified experimentally ,and it was found that the maximum elevation is inversely proportional to the parameter p of parabolic reflector ,the maximum horizontal detection range is proportional to the target size and the resolu‐tion is proportional to the target size but is inversely proportional to the distance of the target location .%针对应用最多的2种单视点曲面反射式全景视觉系统———双曲面反射式和抛物面反射式全景视觉系统存在的安装精度高和远心透镜造价高等缺点，提出了多视点抛物面反射式全景视觉系统。首先分析了系统视点的分布情况，建立了系统成像的参数模型，利用类比单视点曲面反射式全景视觉系统模型进行投影点解算，然后分析了焦散面的特性。其次利用系统成像模型依次建立了系统的最大仰角、最大水平探测距离和分辨率的参数模型，讨论了对其产生影响的因数。在此分析的基础上研制了多视点抛物面反射式全景视觉系统样机，该样机成像效果好、安装精度高、成本低。最后实验验证了最大仰角参数模型、最大水平探测距离参数模型和分辨率的参数模型的正确性，最大仰角参数且与抛物面反射镜参数 p成反比，最大水平探测距离参数与目标大小成正比，分辨率的参数与目标大小成正比且与目标所处位置的远近成反比。
展开▼
