Textures are retouched from the original ones to remove obstacles. For example, the third texture from the right is modified to remove the portion of the building standing between the camera and the target object. It is an easy task to copy windows in the image using retouch software such as Photoshop, because the texture has been converted into frontview. 
  If you have a VRML plugin with your browser, you can see the 3D demo:  VRML
Last modified: May. 13. 1998