Search results for " Color"
showing 10 items of 770 documents
<title>Factors affecting intraocular light scattering from different color straylight sources</title>
2008
Important optical parameter of the eye is intraocular light scattering. Straylight can reduce visual acuity, contrast sensitivity. It is one of the main factors for glare, especially for drivers at night, when there is light source some distance away from the fixation point. There are many factors, which can affect amount of light scattering in the eye. To assess the effect of the color of the straylight source on retinal image quality at different light scattering levels, retinal straylight was measured with and without light scattering occluder. Red, green and blue colors were choosed for straylight source. Psychophysical and electrophysiological methods were used to evaluate light scatte…
Spectral imaging system for money counterfeit detection
2019
A prototype with three different wavelength lasers (448nm, 532nm and 659nm) for money counterfeit illumination, analyzation and detection using RGB crosstalk correction and comparing spectral image ration for different banknote elements will be presented.
Tetrachromatic color vision in goldfish: evidence from color mixture experiments
1992
Additive color mixture experiments were performed in the goldfish using a behavioral training technique in which the fish had to discriminate between two test fields.
Terza Missione del DARCH
2017
La presenza del Piano del Colore nell’agenda delle attività del Comune di Favignana è segno importante di una volontà politica che intende orientare in termini qualitativi lo sviluppo di un territorio particolarmente sensibile. A tal fine, il Comune ha coinvolto la sezione di Trapani dell'INBAR che si è avvalsa della consulenza scientifica del Dipartimento di Architettura dell'Università degli Studi di Palermo. L’impegno del Dipartimento di Architettura, che sviluppa come Terza Missione l’impiego della ricerca scientifica per contribuire allo sviluppo sociale, culturale ed economico della società, è rivolto ad affrontare il Piano del Colore come strumento urbanistico per salvaguardare i val…
VALORIZZAZIONE PRODUTTIVA DEL GERMOPLASMA DELLE AREE INTERNE: PROVE DI COLTIVAZIONE DI ISATIS TINCTORIA L.
2009
Le linee più recenti della politica agricola comunitaria attribuiscono grande importanza all’espansione, o reintroduzione, di colture che, assenti dai sistemi colturali ordinari, siano in grado di fornire le più diverse tipologie di materie prime di interesse industriale. Tra queste, un ruolo considerevole spetta a tutte le specie utilizzabili per l'estrazione di principi coloranti. Isatis tinctoria L., conosciuta anche come Guado, viene adoperata in Europa fin da tempi remotissimi per l’estrazione dell’indaco, sostanza colorante blu contenuta in buona quantità nelle foglie. Nel corso del tempo, per effetto di svariate circostanze di ordine commerciale e politico, l’interesse verso questa C…
Smartphone determination of fat in cured meat products
2017
Abstract A method has been developed to determine the fat content in different cold meat products by image processing using the camera of a mobile phone. Salchichon , chorizo , salami and cured ham pictures were taken with a Meizu M2 Mini mobile phone camera under fixed lighting conditions of the light emitting diode flash of the mobile phone. Images were treated with Matlab to obtain the mean pixels of average red, green and blue camera values colours (RGB) of the pixels and different data pretreatments were taken into account to correlate colour parameters with fat content values determined in a series of commercially available samples by the Soxhlet method. RGB values were used as input …
Colorectal Cancer Stem Cells: From the Crypt to the Clinic
2014
Since their first discovery, investigations of colorectal cancer stem cells (CSCs) have revealed some unexpected properties, including a high degree of heterogeneity and plasticity. By exploiting a combination of genetic, epigenetic, and microenvironmental factors, colorectal CSCs metastasize, resist chemotherapy, and continually adapt to a changing microenvironment, representing a formidable challenge to cancer eradication. Here, we review the current understanding of colorectal CSCs, including their origin, relationship to stem cells of the intestine, phenotypic characterization, and underlying regulatory mechanisms. We also discuss limitations to current preclinical models of colorectal …
Autofluorescence imaging of basal cell carcinoma by smartphone RGB camera
2015
The feasibility of smartphones for in vivo skin autofluorescence imaging has been investigated. Filtered autofluorescence images from the same tissue area were periodically captured by a smartphone RGB camera with subsequent detection of fluorescence intensity decreasing at each image pixel for further imaging the planar distribution of those values. The proposed methodology was tested clinically with 13 basal cell carcinoma and 1 atypical nevus. Several clinical cases and potential future applications of the smartphone-based technique are discussed.
Convolutional Neural Network-Based Human Movement Recognition Algorithm in Sports Analysis
2021
In order to analyse the sports psychology of athletes and to identify the psychology of athletes in their movements, a human action recognition (HAR) algorithm has been designed in this study. First, a HAR model is established based on the convolutional neural network (CNN) to classify the current action state by analysing the action information of a task in the collected videos. Secondly, the psychology of basketball players displaying fake actions during the offensive and defensive process is investigated by combining with related sports psychological theories. Then, the psychology of athletes is also analysed through the collected videos, so as to predict the next response action of the …
VALUTAZIONE DELL'EFFICACIA E DURABILITÀ DI PROTETTIVI NANOSTRUTTURATI APPLICATI SU CAMPIONI DI MARMO DI CARRARA
2014
An integrated analytical approach can be useful to study the effectiveness of preservation treatment for Carrara marble surfaces, carried out for testing commercial products which are based on nano-structured silica oxides. Variation in hydrophobic properties, porosity distribution, and chemical composition of treated surfaces have been studied. With this aim, contact angle evaluation, NMR, XRF measurements have been used. Changes of above mentioned physical and chemical characteristics have been evaluated before and after aging in saline chamber of the treated and untreated samples. Moreover, the effectiveness of ultrasonic treatment in “safe” removal of the products from treated surfaces …