CAJ | 학술논문

伴随着移动GIS和可穿戴计算的出现,GIS作业空间被拓展到户外,户外增强现实空间信息表达致力于将虚拟空间信息叠加到真实地理场景上,增强、拓展用户对地理场景的认知.为了有效地降低空间信息增强表达的虚实配准误差,汲取计算机视觉中的算法思想,提出通过建立全局仿射坐标系,解算虚拟物体到真实场景图像的投影坐标,找到获取像素相对深度参数的方法,进而避开相机定标这个复杂过程,最终为户外增强现实系统提供位置相关的信息源,也为空间信息可视化表达提供了新界面.
반수착이동GIS화가천대계산적출현,GIS작업공간피탁전도호외,호외증강현실공간신식표체치력우장허의공간신식첩가도진실지리장경상,증강、탁전용호대지리장경적인지.위료유효지강저공간신식증강표체적허실배준오차,급취계산궤시각중적산법사상,제출통과건립전국방사좌표계,해산허의물체도진실장경도상적투영좌표,조도획취상소상대심도삼수적방법,진이피개상궤정표저개복잡과정,최종위호외증강현실계통제공위치상관적신식원,야위공간신식가시화표체제공료신계면.
With the emergence of mobile GIS and wearable computing,operating space of GIS is extended to outdoor.Outdoor augmented reality spatial information representation is committed to enhance and expand user's spatial cognition by overlaying virtual geographic objects on real scene.For the purpose of reducing registration error and avoiding complicated camera calibra-tion,it borrows algorithm from computer vision to set up global affine coordinate system for computing projection coordinates of virtual objects into real scene images.Simultaneously,it brings forward an approach to get pixels relative depth.It provides loca-tion-related information sources for outdoor AR and becomes a new interface for spatial information visualization representation.