CAJ | 학술논문

为了获取整个球面全景图像,提出了全方位视觉传感器(omni-directional vision sensor,ODVS)的二次折反射的成像原理并设计了折反射镜面.利用4阶Runge-Kutta算法求得了镜面曲面的数值解,通过组合镜头的设计实现ODVS与广角镜头的集成以消除ODVS的固有死角,然后,将两台无死角的ODVS装置以背靠背的方式进行连接,并将所获取的全景视频图像进行展开及无缝拼接得到360°* 360°视频图像.实验结果表明,所设计的ODVS装置可以获取全球面的视场范围,在视频监控领域有重要的应用价值.
위료획취정개구면전경도상,제출료전방위시각전감기(omni-directional vision sensor,ODVS)적이차절반사적성상원리병설계료절반사경면.이용4계Runge-Kutta산법구득료경면곡면적수치해,통과조합경두적설계실현ODVS여엄각경두적집성이소제ODVS적고유사각,연후,장량태무사각적ODVS장치이배고배적방식진행련접,병장소획취적전경시빈도상진행전개급무봉병접득도360°* 360°시빈도상.실험결과표명,소설계적ODVS장치가이획취전구면적시장범위,재시빈감공영역유중요적응용개치.
In order to obtain a panoramic image with a full sphere view, this paper presents the two-catadioptric imaging principle of omni-directional vision sensor (ODVS), by which catadioptric mirrors can be made.The reflectors curvilinear numeric solutions of the catadioptric mirrors are obtained by means of the fourth order Runge-Kutta algorithm. the problem of dead angle existing in current ODVSs is solved through designing the combination lens, in which ODVSs and wide-angle lens are put together. In addition, two ODVS devices without dead angle are fixed in a back-to-back way, and then, the captured images by the two ODVS devices are unwrapped and seamlessly composed so that an image with 360° by 360° is obtained. The experimental results show that the proposed ODVS devices are capable of capturing panoramic images with a full sphere view and can be used in intelligent video surveillance fields.