图像的拼接问题是基于图像绘制（Image base Rendering，IBR）领域研究的一个重要课题，也是虚拟环境重建的主要技术手段。它要解决的问题是如何把小视域的照片拼接成一张大视域的图像，以满足人们观察、浏览大范围场景的需要。场景图像的拼接是伴随着虚拟现实（Virtual Reality，VR）技术的飞速发展和虚拟环境实时绘制的需求应允而生的。由于每一幅图像都反映了客观事物或某个场景在空间、时间上的局部信息，采用图像拼接技术可以提供一种有效且完整的场景表示方法，使人们能更加客观、形象地认识事物和理解真实世界。因此，图像拼接技术是摄影测量学、计算机图形学、图像处理和计算机视觉等学科的重要研究内容，并得到广泛的应用。
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