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By the two-dimensional image reconstruction of the scene of the three-dimensional (3D reconstruction) image processing, a very hot research topic in digital photography and computer vision and other fields, which combines computer technology, computer graphics, image processing technology, technology, and many high-tech in one. As the technology continues to mature in computer software and hardware development, as well as graphics, images, 3D reconstruction technology is maturing, and its increasingly wide range of applications. The stereo matching technology to solve the corresponding point of the image, which is a key technology found to be struck by the three-dimensional imaging principle of the corresponding point in the image on the corresponding point parallax and used to determine the depth information of the scene. Because the scene of mutual shading and stereo matching algorithm limitations, often by the image on and can not be restored depth information on all points, but only sparse data points, so interpolation became a very important part of a three-dimensional modeling, this article compared with other algorithms based on the Gaussian wavelet interpolation algorithm based on Delaunay triangulation, the algorithm is only calculated the advantages of simple interpolation effect, but also to overcome the other algorithms to define the weights and the shortcomings of the estimated parameters . To build three-dimensional model by interpolation to get a realistic image, the drawing must also be imposed on the three-dimensional model transformation, blanking, light, texture mapping processing. Drawing transform to solve the translation of the scene as a whole, rotation, symmetry, scale, projection for better visualization. Blanking graphics can eliminate ambiguity, it is a very important aspect of the scene realistic. But only for photorealistic scene hidden surface removal is not enough, in the fourth chapter describes how to deal with surface illumination light and shade effect, by using a different color gray, to increase the realism of the image , which is the main source of the scenes photorealistic. With the previously described method to generate the image of the object, often because its surface is too smooth and monotonic, instead look unreal, to increase its realism, but also on the surface of the object and its surface details, texture . Through texture mapping techniques, it is possible to transform the two-dimensional texture to the surface of the three-dimensional object, to form the final image, so that you see a photorealistic strong three-dimensional scene.
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