The late detection of skin cancer, especially melanoma, leads to an increase in mortality rates, therefore it is high time to embrace mobile teledermatology and adapt the existing methodologies to check out the malignancy level of a mole. Though, the usage of a smartphone camera gives rise to new pre-processing challenges like the treatment of reflections caused by the flash light or uneven ill...

A method for preferred color reproduction with a psychophysical study based upon a real-life scene demonstrated application is presented. A color correction matrix optimization algorithm is first introduced which applies additional hue constraints on top of the CIE delta E magnitude error to emphasize the importance of hue in the subjective quality of color reproduction. An application is imple...

Since there has been a strong demand from industry to have an efficient way of managing color image quality presented in different media, by specifically investigating partly changed complex images, this article proposed a revision to existing CIE color difference model which cannot give a proper color difference assessment on partly changed complex images. The key method applied is to find out...

Color calibration of imaging devices has been previously studied in a varied number of situations where the materials observed have diffuse or only slightly specular surfaces. Most of the calibration methods available in the literature consist in using standard diffuse color charts in order to determine the mathematical operations necessary to transform the colors measured by the imaging device...

1) Goal – Perform preliminary experiment to check the feasibility and evaluate the accuracy of spectral estimation using a digital camera. 2) Background Multi-spectral acquisition and linear methods have been widely used to estimate spectral properties of imaged materials. 1 2 0 0 O , (1) and the object spectral reflectance as r=(r 1 , r 2 , ... r n) T , where the index indicates the set of n w...

Concentration quenching is a major impediment to efficient organic light-emitting devices. We herein report on Organic Light-Emitting Diodes (OLEDs) based on a fluorescent amorphous red-emitting starbust triarylamine molecule (4-di(4’-tert-butylbiphenyl-4-yl)amino4’-dicyanovinylbenzene, named FVIN), exhibiting a very small sensitivity to concentration quenching. OLEDs are fabricated with variou...

Information about the spectral reflectance of a color surface is useful in many applications. Assuming that reflectance functions can be adequately approximated by a linear combination of a small number of basis functions and exploiting genetic algorithms, we address here the problem of synthesizing a spectral reflectance function, given the standard CIE 1931 tristimulus values. Different sets ...

There are three parts to this talk – related in rather tangential ways. First, I will give a recap of an argument developed in a couple of earlier talks – at IIiX in 2008 and at the SIGIR evaluation workshop in 2009. The gist of the argument is about thinking about IR as a science, and the consequences Appears in the Proceedings of The 2nd International Workshop on Contextual Information Access...

Millet idli batter was prepared from decorticated little millet and black gram (2:1, 3:1 and 4:1) using wet grinder with adequate amount of water and salt (1-2%). The different blends were allowed for fermentation at 0, 2, 4, 6, 8, 10, 12, 14 and 16 h, separately. The batter property viz. bulk density, percent volume rise, pH and titrable acidity was studied for different fermentation time. Idl...

Whilst many solutions have been found for the Quantum Yang-Baxter Equation (QYBE), there are fewer known solutions available for its higher dimensional generalizations: Zamolodchikov’s tetrahedron equation (ZTE) and Frenkel and Moore’s simplex equation (FME). In this paper, we present families of solutions to FME which may help us to understand more about higher dimensional generalization of QYBE.