Extending Depth of Field for Iris Recognition

Iris recognition has become popular in recent years due to its rich textures and high accuracy. However, a major constraint in current iris recognition systems is the very shallow depth-of-field (DOF) that limits system usability and increases system complexity. In this paper, we used a spatial light modulator in place of the traditional cubic phase mask to dynamically optimize the wavefront coding in real time with different depth ranges. Proposed scheme will certainly has a promising impact on the development of computational imaging for iris recognition due to its rapidity and versatility.