Simulation of optical lens system imaging course based on visual channels

A way that could be improved was brought forward on the pin-hole camera model in allusion to the problems of the insufficient cue of depth. The relation formulas of the magnification and aspect angle were concluded according to the principles of digital zoom and the zooming function of visual channels was realized. The implementation of this method is simple and the effect is realistic. Besides, a simulation method for the course of adjusting focus was proposed, which brought blurry images into focus by particle system. Both vivid images and real time requirement could be achieved. The ameliorated model runs in the same way as the real camera system on the theory, thus enhancing the fidelity and immersion of visual effects. It is so easy to implement in project that this approach can be used universally in VR systems.