Results 31 to 40 of about 3,522,681 (315)

Identification of plant leaf phosphorus content at different growth stages based on hyperspectral reflectance. [PDF]

BMC Plant Biol, 2021
Modern agriculture strives to sustainably manage fertilizer for both economic and environmental reasons. The monitoring of any nutritional (phosphorus, nitrogen, potassium) deficiency in growing plants is a challenge for precision farming technology.
Siedliska A, Baranowski P, Pastuszka-Woźniak J, Zubik M, Krzyszczak J.   +4 more
europepmc   +2 more sources

Illumination invariance and shadow compensation on hyperspectral images [PDF]

, 2014
To obtain intrinsic reflectance of the scene by hyperspectral imaging systems has been a scientific and engineering challenge. Factors such as illumination variations, atmospheric effects and viewing geometries are common artefacts which modulate the way
Ibrahim, Izzati
core   +7 more sources

Linking leaf hyperspectral reflectance to gene expression. [PDF]

Commun Earth Environ
Forest diversity and dynamics are governed by the interactions between organismal function and the abiotic and biotic environment. Functional traits have been widely employed in forest ecology to estimate key functional tradeoffs related to tree performance in a given environment.
Chen Y, Monks L, Rubio VE, Cox AJ, Swenson NG.   +4 more
europepmc   +4 more sources

Detection of Lettuce Discoloration Using Hyperspectral Reflectance Imaging [PDF]

Sensors, 2015
Rapid visible/near-infrared (VNIR) hyperspectral imaging methods, employing both a single waveband algorithm and multi-spectral algorithms, were developed in order to discrimination between sound and discolored lettuce.
Changyeun Mo, Giyoung Kim, Jongguk Lim, Moon S. Kim, Hyunjeong Cho, Byoung-Kwan Cho   +5 more
doaj   +5 more sources

EVALUATION OF ZY1-02D HYPERSPECTRAL SATELLITE SURFACE REFLECTANCE PRODUCTS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
ZY-1 02D satellite is an important satellite in China space infrastructure planning. The Land Satellite Remote Sensing Application Center of the Ministry of Natural Resources of the People’s Republic of China (LASAC) undertook the construction of the ...
S. Liu, L. Guo, B. Xue, X. Wang, H. Zhang, H. Zhang   +5 more
doaj   +1 more source

Using soil library hyperspectral reflectance and machine learning to predict soil organic carbon: Assessing potential of airborne and spaceborne optical soil sensing

Remote Sensing of Environment, 2022
: 20 Soil organic carbon (SOC) is a key variable to determine soil functioning, ecosystem services, and global 21 carbon cycles. Spectroscopy, particularly optical hyperspectral reflectance coupled with machine learning, 22 can provide rapid, efficient ...
Sheng Wang, K. Guan, Chen-Hui Zhang, Dokyoung Lee, Andrew J. Margenot, Y. Ge, Jian Peng, Wang Zhou, Qu Zhou, Yi-Zhi Huang   +9 more
semanticscholar   +1 more source

Waterlogging Effects on Soybean Physiology and Hyperspectral Reflectance during the Reproductive Stage

Agriculture, 2023
In humid climates, waterlogging from excessive rainfalls can be a major limiting factor for soybean production, particularly during the reproductive stage.
Grace A. Adegoye, O. J. Olorunwa, F. Alsajri, Charles H. Walne, Chaturika Wijewandana, Swatantra R. Kethireddy, K. N. Reddy, K. Reddy   +7 more
semanticscholar   +1 more source

Detection of early bruises on apples using hyperspectral reflectance imaging coupled with optimal wavelengths selection and improved watershed segmentation algorithm.

The Journal of the Science of Food and Agriculture, 2023
BACKGROUND Bruise caused by mechanical collision during the harvesting and storage and transportation period is difficult to detect using traditional machine vision technologies because there is no obvious appearance between bruised and sound tissues ...
Xi Tian, Xue-Feng Liu, Xin-yu He, Chi Zhang, Jiang-Bo Li, Wen-Qian Huang   +5 more
semanticscholar   +1 more source

Utilizing Hyperspectral Reflectance and Machine Learning Algorithms for Non-Destructive Estimation of Chlorophyll Content in Citrus Leaves

Remote Sensing, 2023
To address the demands of precision agriculture and the measurement of plant photosynthetic response and nitrogen status, it is necessary to employ advanced methods for estimating chlorophyll content quickly and non-destructively at a large scale ...
Dasui Li, Qingqing Hu, Siqi Ruan, Jun Liu, Jin-Zhi Zhang, Chun-Gen Hu, Yong-Zhong Liu, Yuanyong Dian, Jingjing Zhou   +8 more
semanticscholar   +1 more source

REFLECTANCE RECONSTRUCTION OF HYPERSPECTRAL IMAGE BASED ON GAUSSIAN SURFACE FITTING [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Different from the field of remote sensing, artificial lights are often utilized as the energy source for spectral imaging in the ground hyperspectral applications.
S. Lyu, S. Lyu, C. Huang, M. Hou, M. Hou
doaj   +1 more source