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Peng Wang, Hongliang Zhao and Guoying Ren
A standard device of steel measuring tape based on machine vision is used for the intelligent detection of steel measuring tape, with accurate, fast, and automatic characteristics. The application of this device falls within the scope of metrology.
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Ayman Wagdy, Veronica Garcia-Hansen, Gillian Isoardi and Kieu Pham
High Dynamic Range (HDR) imaging using a fisheye lens has provided new opportunities to evaluate the luminous environment in visual comfort research. For glare analysis, strict calibration is necessary to extract accurate luminous maps to achieve reliabl...
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Jiayuan Tao, Yuwei Wang, Bolin Cai and Keyi Wang
Planar targets with known features have been widely used for camera calibration in various vision systems. This paper utilizes phase-shifting wedge grating (PWG) arrays as an active calibration target. Features points are encoded into the carrier phase, ...
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Hoyong Kim, Chanil Jeon, Kiwon Kim and Jeonghwa Seo
The present study suggests a methodology for acquiring wave elevation fields using a depth camera sensor, with assessment results for the test uncertainty. The depth camera module of an Azure Kinect is calibrated using marker arrays on the optic table, t...
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Yuli Wang, Hui Liu and Nan Chen
This paper proposes a 3D vehicle-detection algorithm based on multimodal feature fusion to address the problem of low vehicle-detection accuracy in unmanned system environment awareness. The algorithm matches the coordinate relationships between the two ...
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Yi-Sha Ku, Po-Yi Chang, Han-Wen Lee, Chun-Wei Lo, Yi-Chang Chen and Chia-Hung Cho
We developed a telecentric 3D measurement system based on the fringe projection technique to measure phases corresponding to the 3D shape of bumps on a surface. A measurement algorithm based on an area scan camera with a flexibly programmable region of i...
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Yu Han, Xugang Lian, Fan Wang and Haodi Fan
Slope hazards threaten the safety of buildings and people?s lives and property. Real-time and dynamic monitoring of slope deformation by digital image monitoring technology is an effective method to prevent slope hazards. In this study, the Zhang Zhengyo...
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M. Joseph Hughes, S. Douglas Kaylor and Daniel J. Hayes
In the species-rich and structurally complex forests of the Eastern United States, disturbance events are often partial and therefore difficult to detect using remote sensing methods. Here we present a set of new algorithms, collectively called Vegetatio...
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Marios Spiliotopoulos, Nicholas M. Holden and Athanasios Loukas
The applicability of a land surface temperature (LST)-evapotranspiration (ET) regression model to estimate ET fraction (ETrF) was tested in the temperate maritime climate of Central Ireland. In this study, the Mapping ET at high Resolution and with Inter...
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Marios Spiliotopoulos, Nicholas M. Holden, Athanasios Loukas
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The applicability of a land surface temperature (LST)-evapotranspiration (ET) regression model to estimate ET fraction (ETrF) was tested in the temperate maritime climate of Central Ireland. In this study, the Mapping ET at high Resolution and with Inter...
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Jonas Gliß, Kerstin Stebel, Arve Kylling, Anna Solvejg Dinger, Holger Sihler and Aasmund Sudbø
Ultraviolet (UV) SO2 cameras have become a common tool to measure and monitor SO2 emission rates, mostly from volcanoes but also from anthropogenic sources (e.g., power plants or ships). Over the past decade, the analysis of UV SO2 camera data has seen m...
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Huanan Dong, Ming Wen and Zhouwang Yang
Vehicle speed estimation is an important problem in traffic surveillance. Many existing approaches to this problem are based on camera calibration. Two shortcomings exist for camera calibration-based methods. First, camera calibration methods are sensiti...
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Hyeonah Jeong, Eunsu Lee and Hoon Yoo
This paper presents a new method for extracting an elemental image array in three-dimensional (3D) integral imaging. To reconstruct 3D images in integral imaging, as the first step, a method is required to accurately extract an elemental image array from...
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Isabelle Schilling, Claus Maximilian Bäcker, Christian Bäumer, Carina Behrends, Marius Hötting, Jana Hohmann, Kevin Kröninger, Beate Timmermann and Jens Weingarten
The accurate measurement of the beam range in the frame of quality assurance (QA) is a requirement for clinical use of a proton therapy machine. Conventionally used detectors mostly estimate the range by measuring the depth dose distribution of the proto...
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Vilém Pechanec, Alexander Mráz, Ladislav Rozko?ný and Pavel Vyvlecka
Soil is a significant natural resource composed of organic and inorganic material. Nitrogen, one of the essential elements, is traditionally measured using laboratory methods. The development of hyperspectral imaging enables the cost-effective acquisitio...
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Daniel Stow, Caroline J. Nichol, Tom Wade, Jakob J. Assmann, Gillian Simpson and Carole Helfter
Small unmanned aerial systems (UAS) have allowed the mapping of vegetation at very high spatial resolution, but a lack of standardisation has led to uncertainties regarding data quality. For reflectance measurements and vegetation indices (Vis) to be com...
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Jakub Langhammer, Jana Bernsteinová and Jakub Mirijovský
This paper explores the potential of the joint application of unmanned aerial vehicle (UAV)-based photogrammetry and an automated sensor network for building a hydrodynamic flood model of a montane stream. UAV-based imagery was used for three-dimensional...
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