In order to realize a subterranean cave scene simulation system, this paper investigates the key technology of scene simulation just like texture mapping, collision detection, model dynamic scheduling, object picking up.

Automatic method of first break picking based on edge detection and spline interpolation.;

A 3D picking method based on parallel perspective model;

Picking Entities in 3D Scene Based on DirectX

This article put study emphases on picking up technique during the process of 3D-terrain (visualization) and interaction creation.

A technology for refined dissection and picking up of single DNA molecules at nanometer level has been demonstrated in this paper.

The methods for the picking up of the observation point,3D terrain viewshed analysis and result displaying were presented.

Constrained first-arrival pickup and first-break residual static correction;

An improved method for first arrival pickup using energy ratio.;

The implementation principle of key technologies of 3D object′s pickup and the controlling of touring in virtual 3D scene are mainly introduced.

This paper analyses envelope outlines and advances a method of the automated recognition and extraction of envelope outlines by computer, based on the recognition theory of the plane drawing outline.