视频图像在三维模型中的渲染

视频监控是大型安防工作中最重要的一个环节,传统的视频监控系统展示给用户的只是独立的二维平面图像,图像脱离环境,整体性不足,为了解决该问题,提出了将视频图像渲染显示于三维模型的思路.研究了纹理映射技术并结合视频图像渲染的特殊性分析研究了Z缓冲算法、Shadow map算法,根据实际应用提出Extend Shadow map算法以实现将视频图像与三维场景无缝贴合.实验结果表明,视频图像渲染显示于三维模型中所体现的优越性.

Rendering of live video on 3D model

Video surveillance system is one ofthe most important tools for security protection. The traditional video surveillance systems display separate live video in the form of 2D image which is divorced from the environment. The idea of rendering the live video on 3D model was bring forward to solve this problem, it enable the user view the live video in the context of a global 3D scene. This paper study the texture-mapping technique at first, then Z-buffer arithmetic and shadow map arithmetic were studied in combine with the parti-cularity of video rendering. This paper presents an ameliorating arithmetic according to the practical application to realize the integration of the video image and the 3D scene, the experiment result illuminates the advantage of this arithmetic and the idea of rendering the live video on 3D model.