نتایج جستجو برای: lwir
تعداد نتایج: 274 فیلتر نتایج به سال:
This paper discusses recent advances in the full spectral simulation of scenes with partial cloud cover. We examine the effect of broken cloud fields on the solar illumination reaching the ground. Application of aerosol retrieval techniques in the vicinity of broken clouds leads to significant over-prediction of aerosol optical depth because of the enhancement of visible illumination due to sca...
Assuring high quality of welded joins is a vital task in many industrial branches also when joints are made manually. It the case metal-arc welding with covered electrode. One main imperfection, that can occur this process slag inclusion. In paper an method for detection inclusion multipass manual proposed and validated. The key idea small temperature disturbances will be noticeable consecutive...
Mid-wave and long-wave infrared (MWIR LWIR) detection play vital roles in applications that include health care, remote sensing, thermal imaging. However, detectors this spectral range often require complex fabrication processes and/or cryogenic cooling are typically expensive, which motivates the development of simple alternatives. Here, we demonstrate broadband (0.43-10 μm) room-temperature p...
Trends of environmental awareness, combined with a focus on personal fitness and health, motivate many people to switch from cars public transport micromobility solutions, namely bicycles, electric cargo bikes, or scooters. To accommodate urban planning for these changes, cities communities need know how vehicles are the road. In previous work, we proposed concept compact, mobile, energy-effici...
Ground bearing capacity has become a relevant concept for site-specific management that aims to protect soil from the compaction and the rutting produced by the indiscriminate use of agricultural and forestry machines. Nevertheless, commonly known techniques for its estimation are cumbersome and time-consuming. In order to alleviate these difficulties, this paper introduces an innovative sensor...
This paper proposes a technique for using infrared (IR) imagery to eliminate false forward-looking ground penetrating radar (FLGPR) detections by examining areas in IR images corresponding to FLGPR alarm locations. The FLGPR and IR co-location is based on the assumption of a flat earth and the pinhole camera model. The parameters of the camera and its location on the vehicle are not assumed to ...
Recently, DRDC Valcartier has been investigating longwave hyperspectral imaging (HSI) remote sensing techniques using ground-based and airborne sensors. Specific projects to date involve the development of a new ground-based sensor called MoDDIFS (Multi-Option Differential Detection and Imaging Fourier Spectrometer), and the testing of a commercial-off-the-shelf airborne sensor, called Hyper-Ca...
Typically a regression approach is applied in order to identify the gaseous constituents present in a hyperspectral image, and the task of species identification amounts to choosing the best regression model. Common model selection approaches (stepwise and criterion based methods) have well known multiple comparisons problems, and they do not allow the user to control the experiment-wise error ...
HgCdTe is a well known material for Infrared detection applications because of its special properties like high absorption coefficient, adjustable bandgap and moderate dielectric constant etc. Vertical PC detectors of HgCdTe are very easy to fabricate as compared to the other detectors with the desired uniformity and therefore, these detectors may be proved better choice if the cost and the yie...
Establishment of Human Performance Baseline for Image Fusion Algorithms in the LWIR and SWIR Spectra
The performance benchmark process for discriminating between image fusion algorithms presented by Howell [3] and again by Moyer and Howell [6] establishes a performance goal for any aggregate function merging the source band imagery under investigation. It was reported by Moyer and Howell, in “Establishment of Human Performance Baseline for Image Fusion Algorithms in the LWIR and MWIR Spectra,”...
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