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.
- Aug 28 2014 : This is Your Brain's Blood Vessels on Drugs - A new method for measuring and imaging how quickly blood flows in the... more
- Aug 20 2014 : Optica Research - UAlberta Engineers Take Major Step Toward Photonic Circuits. Nano-optical cables could replace copper wiring on computer chips… more
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- 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...