On iris detection for mobile device applications

A novel transform called Gradient Direction Transform for fast detection of naturally curved items in digital images is described in this article. This general purpose image transform is defined to suit platforms with limited memory and processing footprints by utilizing only additions and simple shift and bitwise operations. We present this unique algorithmic approach in application to real world problems of iris detection. The new approach is tested on a large data set and the experiments show promising and superior performance compared to existing techniques.