Results 31 to 40 of about 1,316,422 (315)

Estimation of biometric, physiological, and nutritional variables in lettuce seedlings using multispectral images

Revista Brasileira de Engenharia Agrícola e Ambiental, 2021
The formation of seedlings is one of the most important phases of lettuce cultivation. Therefore, any strategy that aims to obtain high-quality seedlings can increase productivity.
George D. Martins, Onésio F. da Silva Neto, Glecia J. dos S. Carmo, Renata Castoldi, Ludymilla C. S. Santos, Hamilton C. de O. Charlo   +5 more
doaj   +1 more source

Water-Quality Monitoring with a UAV-Mounted Multispectral Camera in Coastal Waters

Remote Sensing, 2022
Remote-sensing ocean colour studies have already been used to determine coastal water quality, coastal biodiversity, and nutrient availability. In recent years, Unmanned Aerial Vehicles (UAVs) equipped with multispectral sensors, originally designed for ...
A. Román, A. Tovar-Sánchez, A. Gauci, A. Deidun, I. Caballero, E. Colica, S. D'Amico, G. Navarro   +7 more
semanticscholar   +1 more source

Using a UAV-Mounted Multispectral Camera for the Monitoring of Marine Macrophytes

Frontiers in Marine Science, 2021
Marine macrophytes constitute one of the most productive ecosystems on the planet, as well as one of the most threatened by anthropogenic activities and climate change.
A. Román, A. Tovar-Sánchez, I. Olivé, G. Navarro   +3 more
semanticscholar   +1 more source

A novel method for the definition of central wavelength and spectral bandwidth

Results in Physics, 2020
Spectral calibration is an essential step in the calibration process of multispectral camera for Mars exploration. The precision of spectral calibration has a direct impact on the accuracy of Mars multispectral data inversion.
Hong Wang, Jianfeng Yang, Bin Xue
doaj   +1 more source

Design and Ground Verification for Multispectral Camera on the Mars Tianwen-1 Rover

Space Science Reviews, 2022
As part of China’s first Mars exploration mission ‘Tianwen-1’, the Zhurong rover has successfully touched down on the surface of southern Utopia Planitia on May 15th 2021 and has been conducting surface operations for several months.
Jianfeng Yang, Da-Wei Liu, Bin Xue, Juan Lyu, Jian-Jun Liu, Fu Li, Xin Ren, Wei Ge, Bin Liu, Xiao-Long Ma, Bao-Gang Lyu, Ping Ruan, Weidong Qiao, Di Lu   +13 more
semanticscholar   +1 more source

Spectral Angle Mapping and AI Methods Applied in Automatic Identification of Placer Deposit Magnetite Using Multispectral Camera Mounted on UAV

Minerals, 2022
The use of drones in mining environments is one way in which data pertaining to the state of a site in various industries can be remotely collected. This paper proposes a combined system that employs a 6-bands multispectral image capturing camera mounted
Brian Bino Sinaice, N. Owada, H. Ikeda, H. Toriya, Z. Bagai, E. Shemang, Tsuyoshi Adachi, Y. Kawamura   +7 more
semanticscholar   +1 more source

A single sensor based multispectral imaging camera using a narrow spectral band color mosaic integrated on the monochrome CMOS image sensor

APL Photonics, 2020
A multispectral image camera captures image data within specific wavelength ranges in narrow wavelength bands across the electromagnetic spectrum. Images from a multispectral camera can extract a additional information that the human eye or a normal ...
Xin He, Yajing Liu, Kumar Ganesan, Arman Ahnood, Paul Beckett, Fatima Eftekhari, Dan Smith, Md Hemayet Uddin, Efstratios Skafidas, Ampalavanapillai Nirmalathas, Ranjith Rajasekharan Unnithan   +10 more
doaj   +1 more source

Location of Latent Forensic Traces Using Multispectral Bands

Sensors, 2022
In this paper, a conventional camera modified to capture multispectral images, has been used to locate latent forensic traces with a smart combination of wavelength filters, capturing angle, and illumination sources.
Samuel Miralles-Mosquera, Bernardo Alarcos, Alfredo Gardel   +2 more
doaj   +1 more source

Deploying four optical UAV-based sensors over grassland: challenges and limitations [PDF]

Biogeosciences, 2015
Unmanned aerial vehicles (UAVs) equipped with lightweight spectral sensors facilitate non-destructive, near-real-time vegetation analysis. In order to guarantee robust scientific analysis, data acquisition protocols and processing methodologies need to ...
S. K. von Bueren, A. Burkart, A. Hueni, U. Rascher, M. P. Tuohy, I. J. Yule   +5 more
doaj   +1 more source

Justifying the Parameters for an Unmanned Aircraft Flight Missions of Multispectral Aerial Photography

Сельскохозяйственные машины и технологии, 2022
The paper shows the possibility of collecting multispectral and RGB data on the crop condition using an unmanned aircraft. The use of several programs for creating a flight mission is likely to lead to the inefficient use of the unmanned aircraft ...
R. K. Kurbanov, N. I. Zakharova
doaj   +1 more source