Iris recognition used the iris features to verify and identify identity of human. The has many advantages such as stability over time, easy use high accuracy. However, poor quality images can degrade accuracy system. this system is depended on pattern captured during acquisition. due blurry image. Blurry image happened movement acquisition camera resolution. Due that, a deblurring method based ...

With the arrival of increasingly higher resolution PET systems, small amounts of motion can cause significant blurring in the images, compared to the intrinsic resolutions of the scanners. In this work, we have reviewed advanced correction methods for the three cases of (i) unwanted patient motion, as well as motions due to (ii) cardiac and (iii) respiratory cycles. For the first type of ...

In this paper, a novel decision based median (DBM) filter for enhancing MR images has been proposed. The method is based on eliminating impulse noise from MR images. A median-based method to remove impulse noise from digital MR images has been developed. Each pixel is leveled from black to white like gray-level. The method is adjusted in order to decide whether the median operation can be appli...