Light field cameras for presentation attack resistant robust biometric ocular system

In this chapter, a new paradigm is presented for solving the problem of out-of-focus imaging in visible spectrum iris recognition by employing a Light Field Camera (LFC). The ability of LFC, to refocus the parts of interest in a scene after the image capture, is explored to solve the out-of-focus problem in iris imaging in visible spectrum. This chapter also extends the use of LFC for periocular recognition and thereby presents an ocular biometric system using LFC in visible spectrum. Further, the chapter also presents the weighted score level fusion of iris and periocular characteristics to improve the overall performance.