Internet-based interactive visualization method of 3D lunar model with texture
Because of the huge size of the laser altimetry dataset and the CCD dataset obtained by CE-1 (ChangE-1), how to use these data to visualize a lunar model with texture in real time through the Internet is a problem. This paper proposes a visualization method for a 3D lunar model with texture. The method increases the speed of data transmission through the Internet by using texture divide-and-conquer techniques, view-dependent evaluation of texture piece visibility, and progressive transmission and reconstruction techniques. Using this method, the convergence problem in the polar regions is solved, and multilevel labels can be added and displayed. An Internet-based client/server architecture has been built and implemented, which can be interactively browsed on a client almost in real time. This work offers a popular application (i.e., using personal terminals and the Internet), and the proposed modeling and visualization method could be applied to most global space-exploration datasets.
interactive visualization method progressive transmission and reconstruction change-1 visible texture piece