Rapid Texture Retrivement for Building-Wall in 3D City Model

In this paper, we not only outline key problems and propose reasonable solutions to them toward rapid texture extraction but also make specification on how to select image resource for texture, which way to take picture and what kind of software system should be set up. In addition, some effective algorithmics like Determining camera parameters, Matching building to its projection in images and so on, are detailed discussed and implemented in this paper. Last, taking two kind of image-one is close-image taken by digital camera and another is image sequences captured by digital video on helicopter, as texture resource, we design and implment two software system to make experiment and gain encourage result.