The polychrome analysis of biological samples can yield information usually masked in monochrome or even color analysis. This paper shows that after an accurate choice of the spectral bands, the information obtained can be useful for image analysis purposes (such as segmentation) and also for biochemical analysis through absorption or uorescence measurements. After a description of the image ac...

Multi-spectral imaging techniques are expected to solve the difficulties of cross-environment color reproduction for objects such as products for e-commerce or designing process, and human skin for tele-medicine. However, color is just one attribute for appearance of the objects. Other attributes such as glossiness, graininess and translucency should be also considered for practical crossenviro...

I am developing two related instruments for use in the Atmospheric Radiation Measurement (ARM) p,rogram; both use an automated rotating shadowband technique to make spectrally resolved measurements of the direct-normal, total horizontal, and diffuse horizontal irradiances. These parameters of the sky-radiance function are measured using the same detector (for a given wavelength), eliminating th...

The importance of the equipment and secondary systems in seismic design and performance evaluation is well recognized and has been the subject of many studies. In all of these studies, earthquake is considered as a single component, and in most of them the primary system is considered as shear building. Most attention has been concentrated on the response of secondary system and its response sp...