全景图中投影模型与算法

全景图技术由于其应用广泛,得到了许多学者的关注,已成为计算机视觉、计算机图形学、虚拟现实等领域的研究热点.本文从全景图的关键技术之一的投影算法出发,介绍了平面变换算法中核心变换矩阵及适用的场景、原则,详细分析各种空面变换算法,主要针对柱形全景技术中的投影算法及其改进算法、球形全景技术中的常规算法、分块对应算法及全向图转换算法和立方体全景技术中的传统算法、二维纹理算法及立体投影算法进行了深入的探讨,对全景图技术中投影算法的发展趋势作了展望.

The Projection Models and Algorithms of Panorama

Panoramic image technology made research by many specialists has become a research focus in certain area such as computer visual, computer graphics, virtual reality and so on because of being applied widely. Based on projection algorithm dealing with panoramic image, this paper introduced core transform matrix involved in plane transformation and the working context and prince of it, analyzed various curved surface transformation methods in detail, for example projection algorithm and an improved algorithm of it involved in cylindrical panoramic technology, conventional algorithm and block algorithm and conversion algorithm of complete directed graph referring to spherical panorama, probed deeply into traditional algorithm and two-dimensional texture algorithm and stereoscopic projector relating to cube panorama, prospected development trend of the projection algorithm involved in panoramic image technology.