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- Author:
- David, Ciprian; Nafornita, Corina; Gui, Vasile; Campeanu, Andrei; Carrie, Guillaume; Monnerat, Michel
- Source:
- Remote Sensing 2021 v.13 no.10
- ISSN:
- 2072-4292
- Subject:
- cameras, etc ; probability; satellites; Show all 3 Subjects
- Abstract:
- ... Satellite localization often suffers in terms of accuracy due to various reasons. One possible source of errors is represented by the lack of means to eliminate Non-Line-of-Sight satellite-related data. We propose here a method for fusing existing data with new information, extracted by using roof-mounted cameras and adequate image processing algorithms. The roof-mounted camera is used to robustly ...
- DOI:
- 10.3390/rs13102021
-
http://dx.doi.org/10.3390/rs13102021
- Author:
- Girnis, Jaimie; Agag, Tarek; Nobiling, Tobias; Sweet, Vanessa; Kim, Bokkyu
- Source:
- Journal of visualized experiments 2021 no.171 pp. e61940
- ISSN:
- 1940-087X
- Subject:
- cameras, etc ; kinematics; stroke; Show all 3 Subjects
- Abstract:
- ... Trunk compensation is the most common movement strategy to substitute for upper extremity (UE) motor deficits in chronic stroke survivors. There is a lack of evidence examining how task conditions impact trunk compensation and goal-directed arm reaching kinematics. This protocol aims to investigate the impact of task conditions, including task difficulty and complexity, on goal-directed arm reachi ...
- DOI:
- 10.3791/61940
-
http://dx.doi.org/10.3791/61940
- Author:
- MacKechnie-Guire, Russell; Fisher, Mark; Mathie, Helen; Kuczynska, Kat; Fairfax, Vanessa; Fisher, Diana; Pfau, Thilo
- Source:
- Animals 2021 v.11 no.4
- ISSN:
- 2076-2615
- Subject:
- cameras, etc ; exercise; horses; thermography; Show all 4 Subjects
- Abstract:
- ... Thermography is a non-invasive method for measuring surface temperatures and may be a convenient way of identifying hypo/hyperthermic areas under a saddle that may be related to saddle pressures. A thermal camera quantified minimum/maximum/mean temperatures at specific locations (left/right) of the thoracic region at three-time points: (1) baseline; (2) post lunging; (3) post ridden exercise in ei ...
- DOI:
- 10.3390/ani11041105
-
http://dx.doi.org/10.3390/ani11041105
- Author:
- Calvari, Sonia; Giudicepietro, Flora; Di Traglia, Federico; Bonaccorso, Alessandro; Macedonio, Giovanni; Casagli, Nicola
- Source:
- Remote Sensing 2021 v.13 no.5
- ISSN:
- 2072-4292
- Subject:
- cameras, etc ; deformation; tourists; Italy; Show all 4 Subjects
- Abstract:
- ... Strombolian activity varies in magnitude and intensity and may evolve into a threat for the local populations living on volcanoes with persistent or semi-persistent activity. A key example comes from the activity of Stromboli volcano (Italy). The “ordinary” Strombolian activity, consisting in intermittent ejection of bombs and lapilli around the eruptive vents, is sometimes interrupted by high-ene ...
- DOI:
- 10.3390/rs13050944
-
http://dx.doi.org/10.3390/rs13050944
- Author:
- Kabachi, M.A; Stettler, L.; Arreguin, S.; Ermanni, P.
- Source:
- Composites 2021 v.141 pp. 106203
- ISSN:
- 1359-835X
- Subject:
- cameras, etc ; glass fibers; permeability; Show all 3 Subjects
- Abstract:
- ... Flow-induced fiber-bed compaction has considerable effects on through-thickness permeability due to resulting changes in fiber-volume-fractions. This study introduces a novel method for the simultaneous characterization of compaction and unsaturated out-of-plane permeability of engineering textiles in one single experiment. The measurement technique relies on visually tracking flow-front positions ...
- DOI:
- 10.1016/j.compositesa.2020.106203
-
https://dx.doi.org/10.1016/j.compositesa.2020.106203
- Author:
- Bayar, Gokhan
- Source:
- Journal of food measurement & characterization 2021 v.15 no.1 pp. 296-308
- ISSN:
- 2193-4126
- Subject:
- cameras, etc ; algorithms; chickpeas; measurement; Show all 4 Subjects
- Abstract:
- ... In this study, a new perspective for increasing the measurement accuracy of a chickpea pile volume and weight estimation tool is proposed. The system proposed uses the principles of machine learning methods and focuses on the adaptation of Moore-neighbor tracing algorithm in sphericity calculation of chickpeas. An experimental setup including a two degrees of freedom moving mechanism, a low-cost l ...
- DOI:
- 10.1007/s11694-020-00637-4
-
http://dx.doi.org/10.1007/s11694-020-00637-4
- Author:
- Senthil Kumar, A.; Aparna, N.; Nayak, Shailesh R.
- Source:
- Journal of the Indian Society of Remote Sensing 2021 v.49 no.1 pp. 9-22
- ISSN:
- 0255-660X
- Subject:
- cameras, etc ; geometry; satellites; India; Show all 4 Subjects
- Abstract:
- ... India’s second-generation earth observation satellite series started with the launch of IRS-1C in December 1995, twenty-five years ago. It is considered to be a “game changer” for Indian earth observation program. With a 5.8 m panchromatic (PAN) camera onboard, IRS-1C became the highest spatial resolution civilian operational satellite at the time of launch and maintained this status till the laun ...
- DOI:
- 10.1007/s12524-020-01183-8
-
http://dx.doi.org/10.1007/s12524-020-01183-8
- Author:
- Morphis, Michaella; van Staden, Johan A.; du Raan, Hanlie; Ljungberg, Michael
- Source:
- Heliyon 2021 v.7 no.6 pp. e07196
- ISSN:
- 2405-8440
- Subject:
- cameras, etc ; air; energy; geometry; medicine; Show all 5 Subjects
- Abstract:
- ... Monte Carlo (MC) modelling techniques can assess the quantitative accuracy of both planar and SPECT Nuclear Medicine images. It is essential to validate the MC code's capabilities in modelling a specific clinical gamma camera, for radionuclides of interest, before its use as a clinical image simulator. This study aimed to determine if the SIMIND MC code accurately simulates emission images measure ...
- DOI:
- 10.1016/j.heliyon.2021.e07196
-
https://dx.doi.org/10.1016/j.heliyon.2021.e07196
- Author:
- Chai, Binhu; Wei, Zhenzhong
- Source:
- Remote Sensing 2021 v.13 no.10
- ISSN:
- 2072-4292
- Subject:
- cameras, etc ; aircraft; calibration; models; vision; Show all 5 Subjects
- Abstract:
- ... The mobile vision measurement system (MVMS) is widely used for location and attitude measurement in aircraft takeoff and landing, and its on-site global calibration is crucial to obtaining high-accuracy measurement aimed at obtaining the transformation relationship between the MVMS coordinate system and the local-tangent-plane coordinate system. In this paper, several new ideas are proposed to rea ...
- DOI:
- 10.3390/rs13101982
-
http://dx.doi.org/10.3390/rs13101982
- Author:
- Kilfoil, James P.; Campbell, Matthew D.; Heithaus, Michael R.; Zhang, Yuying
- Source:
- Ecological modelling 2021 v.447 pp. 109507
- ISSN:
- 0304-3800
- Subject:
- cameras, etc ; sharks; simulation models; surveys; Show all 4 Subjects
- Abstract:
- ... Baited remote underwater video systems (BRUVS) have become an important and frequently used tool by resource managers to monitor relative abundances for a variety of marine species. As with any abundance survey method, fundamental assumptions of the technique are that counts derived from videos accurately reflect true changes to abundances, while being robust to changes in density-independent fact ...
- DOI:
- 10.1016/j.ecolmodel.2021.109507
-
https://dx.doi.org/10.1016/j.ecolmodel.2021.109507
- Author:
- Xu, Meimei; Ge, Wanyin; Tian, Ye; Wu, Yuanting; Li, Yongxiang
- Source:
- Journal of materials science 2021 v.56 no.15 pp. 9302-9314
- ISSN:
- 0022-2461
- Subject:
- cameras, etc ; fluorescence; nanofibers; surface temperature; Show all 4 Subjects
- Abstract:
- ... Unraveling the morphology of the sensing material is of paramount in realizing the better sensitivity. For this purpose, the Bi₂Ti₂O₇:Yb³⁺/Er³⁺ nanofibers (0:1, 4:1, 8:1, 15:1, 20:1) and nanoparticles were synthesized via an electrospinning and sol–gel route, respectively. Subsequently, the temperature sensing properties based on the fluorescence intensity ration were studied within Bi₂Ti₂O₇:Yb³⁺/ ...
- DOI:
- 10.1007/s10853-021-05895-1
-
https://dx.doi.org/10.1007/s10853-021-05895-1
- Author:
- Fu, Dong; Xia, Hao; Qiao, Yanyou
- Source:
- Remote Sensing 2021 v.13 no.9
- ISSN:
- 2072-4292
- Subject:
- cameras, etc ; algorithms; data collection; vision; Show all 4 Subjects
- Abstract:
- ... Simultaneous localization and mapping (SLAM) systems have been generally limited to static environments. Moving objects considerably reduce the location accuracy of SLAM systems, rendering them unsuitable for several applications. Using a combined vision camera and inertial measurement unit (IMU) to separate moving and static objects in dynamic scenes, we improve the location accuracy and adaptabi ...
- DOI:
- 10.3390/rs13091610
-
http://dx.doi.org/10.3390/rs13091610
- Author:
- Liu, Jinghui; Wang, Yuezong
- Source:
- Micron 2021 v.143 pp. 103022
- ISSN:
- 0968-4328
- Subject:
- cameras, etc ; deformation; hairs; loess; microscopes; Show all 5 Subjects
- Abstract:
- ... Aiming at the problem of 3D surface reconstruction of small height objects, a method based on the scanning principle with thin structured light is proposed. The laser fringe is produced by a laser light source. It scans the surface of small height object under the control of a precise motion control system, and is integrated with a stereo light microscope and two cameras to form a complete structu ...
- DOI:
- 10.1016/j.micron.2021.103022
-
https://dx.doi.org/10.1016/j.micron.2021.103022
- Author:
- Buzol Mülayim, Beyza; Göktepe, Fatma
- Source:
- The journal of the Textile Institute 2021 v.112 no.3 pp. 494-504
- ISSN:
- 1754-2340
- Subject:
- cameras, etc ; electric field; nanofibers; polyacrylonitrile; Show all 4 Subjects
- Abstract:
- ... Nanofiber production by electrospinning has become a common production method as it is an easy and flexible system producing nanofibrous webs. However, direct spinning of nanofibers into a yarn would lead to conversion of nanofibers into woven or knitted fabrics easily, therefore improving end-use possibilities of these fibers substantially. In this work a successful nanofiber yarn spinning system ...
- DOI:
- 10.1080/00405000.2020.1768772
-
http://dx.doi.org/10.1080/00405000.2020.1768772
- Author:
- Varnam, Matthew; Burton, Mike; Esse, Ben; Salerno, Giuseppe; Kazahaya, Ryunosuke; Ibarra, Martha
- Source:
- Remote Sensing 2021 v.13 no.5
- ISSN:
- 2072-4292
- Subject:
- cameras, etc ; spectrometers; wind direction; Nicaragua; Show all 4 Subjects
- Abstract:
- ... SO₂ cameras are able to measure rapid changes in volcanic emission rate but require accurate calibrations and corrections to convert optical depth images into slant column densities. We conducted a test at Masaya volcano of two SO₂ camera calibration approaches, calibration cells and co-located spectrometer, and corrected both calibrations for light dilution, a process caused by light scattering b ...
- DOI:
- 10.3390/rs13050935
-
http://dx.doi.org/10.3390/rs13050935
- Author:
- Kumar, K. Senthil; Venkatesan, M.; Karuppaswamy, S.
- Source:
- Journal of the Indian Society of Remote Sensing 2021 v.49 no.3 pp. 629-640
- ISSN:
- 0255-660X
- Subject:
- cameras, etc ; lidar; video recording; vision; Show all 4 Subjects
- Abstract:
- ... Autonomous UAV technology is limited in its ability to land safely at distinct airfields that have not been precisely surveyed and where GPS is unavailable. In this paper, we present a multi-sensor system for the automatic landing of fixed-wing UAV. The system is composed of a high precision aircraft controller, a range finder (Lidar) and a vision module used for detection and tracking of runways. ...
- DOI:
- 10.1007/s12524-020-01238-w
-
http://dx.doi.org/10.1007/s12524-020-01238-w
- Author:
- MacRae, Ian; Baker, Timothy; Thompson, Asunta
- Source:
- American journal of potato research 2021 v.98 no.1 pp. 16-23
- ISSN:
- 1099-209X
- Subject:
- cameras, etc ; insects; pests; potatoes; research; Show all 5 Subjects
- Abstract:
- ... The development in the past decade of both unmanned aerial systems, or drones, and near infrared camera technology has significantly augmented the use of remote sensing in agriculture. The increased consumer availability, rapid deployment, and simple operation of drones when partnered with the smaller size and high resolution of imagery obtained by newer near infrared cameras makes them an ideal t ...
- DOI:
- 10.1007/s12230-020-09816-x
-
https://dx.doi.org/10.1007/s12230-020-09816-x
- Author:
- Zhu, Zijian; Li, Xu; Xu, Jianhua; Yuan, Jianhua; Tao, Ju
- Source:
- Remote Sensing 2021 v.13 no.3
- ISSN:
- 2072-4292
- Subject:
- cameras, etc ; algorithms; data collection; lidar; Show all 4 Subjects
- Abstract:
- ... The segmentation of unstructured roads, a key technology in self-driving technology, remains a challenging problem. At present, most unstructured road segmentation algorithms are based on cameras or use LiDAR for projection, which has considerable limitations that the camera will fail at night, and the projection method will lose one-dimensional information. Therefore, this paper proposes a road b ...
- DOI:
- 10.3390/rs13030495
-
http://dx.doi.org/10.3390/rs13030495
- Author:
- Mansour, Mostafa; Davidson, Pavel; Stepanov, Oleg; Piché, Robert
- Source:
- Remote Sensing 2021 v.13 no.3
- ISSN:
- 2072-4292
- Subject:
- cameras, etc ; algorithms; computers; models; traffic; Show all 5 Subjects
- Abstract:
- ... In this paper, an EKF (Extended Kalman Filter)-based algorithm is proposed to estimate 3D position and velocity components of different cars in a scene by fusing the semantic information and car model, extracted from successive frames with camera motion parameters. First, a 2D virtual image of the scene is made using a prior knowledge of the 3D Computer Aided Design (CAD) models of the detected ca ...
- DOI:
- 10.3390/rs13030388
-
http://dx.doi.org/10.3390/rs13030388
- Author:
- Zhang, Jiarui; Xia, Zhixun; Ma, Likun; Huang, Liya; Feng, Yunchao; Yang, Dali
- Source:
- Energy 2021 v.214 pp. 118889
- ISSN:
- 0360-5442
- Subject:
- cameras, etc ; aluminum; combustion; energy; temperature; Show all 5 Subjects
- Abstract:
- ... In this study, experimental investigation on the aluminum particles turbulent jet flame is carried out. The fluidized aluminum particles ignite and burn in the post-flame environment supported by a premixed flat flame burner. High-speed camera and Mie scattering technique are employed to photograph the flame structure. The jet flame is divided into a preheating zone, a flame zone and a burnout zon ...
- DOI:
- 10.1016/j.energy.2020.118889
-
https://dx.doi.org/10.1016/j.energy.2020.118889
