精确的纹理映射是体现模型视觉真实感的关键因素。本文在阐述纹理映射技术原理的基础上，探讨了基于3维激光扫描设备进行3D重建过程中，实现具有高度真实感的纹理映射所遇到的实际问题，提出了基于纹理的模型重构和纹理光照连续性重建算法，解决了纹理图像空间不连续、光照不连续等因素对模型真实感的影响，并通过真实数据的实验对算法有效性进行了验证，为大型户外实体的真实感3D重建奠定了技术基础。

Accurate texture mapping is a key factor for reconstructing visually realistic models. After basic theory of texture mapping is introduced, two practical issues are discussed for 3D reconstruction based on 3D laser scanner. An algorithm of model reconstruction based on its texture and an algorithm of lighting consistency recovery of texture images are proposed to deal with the inconsistency of images in space and lighting. Experiments with real outdoor data prove the effectiveness of these algorithms, which will lay a technological foundation for improving visual reality of 3D reconstruction of outdoor objects in large scale.