Topics in this Issue
Magnified image with high resolution of an iris and corresponding analyzed areas acquired with a multispectral system developed and optimized for measurement of the spectral reflectance and the color of the human iris. The system is composed of a conventional three-channel color camera (RGB), which provides enough accuracy to reconstruct the analyzed reflectances, obtaining averaged color differences of around 2-3 CIEDE2000 units and root mean square errors of around 0.01.The device developed has been used to characterize 100 real irises corresponding to 50 subjects, 68 prostheses used in clinical practice, and 17 cosmetic colored contact lenses. For details, see the paper by Vilaseca et al., pp. 5622-5630.
- Jul 30 2014 : OSA Journal Portfolio Continues to Lead Optics Category in Total Citations and Articles in Thomson Reuters 2014 Journal Citation Reports - The Optical Society (OSA) is pleased to announce its full portfolio... more
- Jul 28 2014 : Wearable Device for the Early Detection of Common Diabetes-related Neurological Condition - A group of researchers in Taiwan has developed a new optical... more
- Jul 22 2014 : Self-cooling Solar Cells Boost Power, Last Longer - Scientists at Stanford University may have overcome one of the major... more
- Jul 22 2014 : The Optical Society Launches Optica, New Open-Access Journal for Highest-Impact Research in the Science of Light - The Optical Society (OSA) today published the first issue of Optica,... more
- Optical properties of the metals Al, Co, Cu, Au, Fe, Pb,...
- Optical properties of metallic films for vertical-cavity...
- Laser Beams and Resonators
- Fast & Furious focal-plane wavefront sensing
- Optical Constants of Water in the 200-nm to 200-?m...
- Exact analytic solutions of Maxwell’s equations...
- Phase retrieval algorithms: a comparison
- Simplifying numerical ray tracing for characterization of...
- Model-based phase shifting interferometry
- Measuring refractive index using the focal displacement...