natural resources have been attracted a great deal of attentions and have been frequently exploited for many years. dust is one of natural disasters mainly in recent years; here, in south west of iran, it had destroyed the rangelands. the dust has detrimental effects on the rangelands, livestock and livestock production. high concentrations of dust may lead to the coughing, nasal discharge, whe...

In this study, we address the problem of online RGB-D tracking which confronted with various challenges caused by deformation, occlusion, background clutter, and abrupt motion. Various trackers have different strengths and weaknesses, and thus a single tracker can merely perform well in specific scenarios. We propose a 3D tracker-level fusion algorithm (TLF3D) which enhances the strengths of di...

A common approach for color image processing is to rst transform the RGB image to a new color space (such as LHS and YIQ), do the processing, and then transform back to RGB space. In many applications, only the luminance component is processed, and the hue and saturation are preserved. However, when the processed values in the new color system are transformed back to RGB, the transformed values...

We present 3DMV, a novel method for 3D semantic scene segmentation of RGB-D scans in indoor environments using a joint 3Dmulti-view prediction network. In contrast to existing methods that either use geometry or RGB data as input for this task, we combine both data modalities in a joint, end-to-end network architecture. Rather than simply projecting color data into a volumetric grid and operati...

Better understanding of plant root dynamics is essential to improve resource use efficiency of agricultural systems and increase the resistance of crop cultivars against environmental stresses. An experimental protocol is presented for RGB and hyperspectral imaging of root systems. The approach uses rhizoboxes where plants grow in natural soil over a longer time to observe fully developed root ...

The first step in performing colour-based segmentation is choosing an appropriate colour space in which to operate from the wide variety of choices such as RGB, HSV, CMYK, YCbCr, etc [1]. Of these, RGB (red-greenblue) and HSV (hue-saturation-value) have been the most widely used. Figure 1 illustrates the geometries of the two spaces. By way of example, HSV representation has certain advantages ...

Tunable leaky-mode resonant silicon-nitride pixels providing red/green/blue spectral lines are analyzed. Critical dimensions, rate of tuning, linewidths, and polarization properties are quantified. ©2007 Optical Society of America OCIS codes: (050.1950) Diffraction gratings; (310.2790) guided waves; (120.2440) filters. Microelectromechanical systems (MEMS) methods are useful for tuning the spec...

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this study was conducted to assess the concentration of some heavy metals and to examine their contamination hazard in atmospheric dust of urban, industrial and non-urban areas in bushehr province, southwestern iran. fifty dust samples from the leaves of the palm trees and fifty surface soil samples from bushehr and assaluyeh cities as urban and industrial areas, respectively, and also from the...