Analysis the image transfer characteristics of integral photography

Integral photography (IP) technology provides a method for recording and display of 3D animated images at real time. In order to analysis the 3D image transfer capability of integral photography (IP), the relationship between the longitudinal resolution of an image and the optical parameters of the system was derived. According to the imaging method of the system, the modulation transfer function (MTF) of capture and display micro-lens array, which includes the effect of the defocusing were deduced, and the Overall MTF of IP systems at different object distance in the direction of depth were obtained. Based on above work, the image transfer characteristics of the systems focusing on different plane position were analyzed, The result show that, if the focus is at the central plane of the object, the response is high for the reconstructed image of the object that only exists in an narrow depth direction; by focusing on the position at infinity, we can obtain a nearly flat images response over a wide rang of depth.