9 December 2005 Iris image acquirement and preprocessing in biometrics
Author Affiliations +
Proceedings Volume 6024, ICO20: Optical Devices and Instruments; 602414 (2005) https://doi.org/10.1117/12.666847
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China
As a biometrics, iris recognition is becoming an active topic in recent years. Due to constriction and dilation of iris sphincter muscle affected by illumination, iris images should be captured under steady illumination. The principles of our homemade iris capture device and real product are introduced first. This device can be used to capture fine iris images and store them into the computer. Due to changes of head orientation and binocular vergence at different iris acquirement time, a preprocessing method including iris location, normalization, image enhancement and rotation correction is then applied to achieve rotation, shift and scale invariance. Finally the correlation measurement is used to evaluate the performance of this processing.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xing Ming, Xing Ming, Zhihui Li, Zhihui Li, Yuanning Liu, Yuanning Liu, } "Iris image acquirement and preprocessing in biometrics", Proc. SPIE 6024, ICO20: Optical Devices and Instruments, 602414 (9 December 2005); doi: 10.1117/12.666847; https://doi.org/10.1117/12.666847


Eye gaze tracking based on the shape of pupil image
Proceedings of SPIE (January 11 2018)
SIFT based iris feature extraction and matching
Proceedings of SPIE (July 24 2007)
A study of multibiometric traits of identical twins
Proceedings of SPIE (April 14 2010)
A kind of real-time infrared image enhancement algorithm
Proceedings of SPIE (January 22 2008)

Back to Top