Reconstruction Algorithm of Iris Image with Great Depth of Field Based on Multi-focus Fusion
This paper presents a new reconstruction algorithm of iris image with great depth of field. First, the focus issue in image capture process is proposed, and characteristic of multi-focus iris image is discussed, which proves the feasibility of reconstruction of iris image with great depth of field based on multi-focus fusion. The proposed method uses antisymmetric biorthogonal wavelet to detect the iris texture edge, and according to the density of edge pixels, chooses the iris sub-regions of high articulation for image fusion. Finally, experimental data set compared with traditional non-fusion method is presented, and the proposed method shows its advantages in performance and practical value in registration process.
Yazhuo Gong Pengfei Shi
Institute of Digital Printing, University of Shanghai for Science and Technology,Shanghai, China. 20 Institute of Image Processing & Pattern recognition, Shanghai Jiaotong University,Shanghai, China. 2
国际会议
长沙
英文
1456-1460
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）