Estimation of Relative Iilluminance using Digital Hemispherical Photography

Assessment of automatic gap fraction estimation of forests from digital hemispherical photography

Thresholding is a central part of the analysis of hemispherical images in terms of gap fraction and leaf area index (LAI), and the selection of optimal thresholds has remained a challenge over decades. The need for an objective, automatic, operatorindependent thresholding method has long been of interest to scientists using hemispherical photography. This manuscript deals with the comparison of...

The computation of foliage clumping index using hemispherical photography

Hemispherical photography (HP) is extensively used for both canopy architecture such as leaf area index (LAI), and solar radiation regime determinations under forest canopies. This is done mainly by assuming that foliage elements occur in a spatially random manner. However, the majority of world forests occur in heterogeneous ecosystems and topography with rather complex canopy architecture. To...

Visible Light Source Temperature Estimation Using Digital Camera Photography

Light source temperature measurement has been an important aspect in many industrial applications. The aim of this study is to determine the temperature of different sources like flames, incandescent lamps. The sensor installation is difficult in these sources. Imaging these sources to correlate with the temperature is attempted. A digital still camera is used to capture the source images. The ...

Digital photography versus analogue photography 1 Running heading: DIGITAL PHOTOGRAPHY VERSUS ANALOGUE PHOTOGRAPHY. Digital versus Analogue Photography: a comparative analysis

Innovative Use of Opsite Flexigrid™ for Digital Photography in Rhinoplasty

Standardization of photography in plastic surgery is fundamental for pre-operative surgical planning, comparative post-operative assessment, and demonstration of surgical results.1 In rhinoplasty, slight changes in patient or camera position can lessen nasal hump, vary nose size, and alter skin tension.2 In order to prevent these common errors, photographic standardization with high-quality equ...