ICIP 2006, Atlanta, GA
 

Slide Show

Atlanta Conv. & Vis. Bureau

 

Technical Program

Paper Detail

Paper:TP-P5.10
Session:Image/Video Restoration and Enhancement
Time:Tuesday, October 10, 14:20 - 17:00
Presentation: Poster
Title: FREE IRIS SCENE RE-FOCUSING BASED ON A THREE-DIMENSIONAL FILTERING OF MULTIPLE DIFFERENTLY FOCUSED IMAGES
Authors: Kazuya Kodama; National Institute of Informatics 
 Hiroshi Mo; National Institute of Informatics 
 Akira Kubota; Tokyo Institute of Technology 
Abstract: This paper describes a method of scene re-focusing with various iris shapes by integrating a sequence of multiple differently focused images. First, we introduce a formula that combines the sequence and spatial information of a scene with a convolution of a 3-D blur. The blur expresses how the scene is defocused in the sequence. Based on the formula, in the 3-D frequency domain we can design filters merging certain frequency components of the sequence to generate images that would be acquired with various iris shapes. Some experiments of scene re-focusing using synthetic and real images indicate that we can not only arbitrarily suppress blurs of the sequence but also generate images with asymmetrical blurs like motion blurs.