Extension of the depth of field in integral imaging: An overview

Integral Imaging has emerged as one of the most promising techniques for realization of true three-dimensional imaging. One of main challenges in this road map is to increase the depth of field of integral imaging systems. We provide a technical overview of various methods for extending the depth of field in integral imaging systems along with a discussion of advantages and disadvantages of each approach. Furthermore, we address the key balance of keeping a reasonable resolution limit while extending the depth of field. © 2009 SPIE.