Results 1 to 10 of about 6,995 (101)

High Spatiotemporal Resolution Monitoring of Water Body Dynamics in the Tibetan Plateau: An Innovative Method Based on Mixed Pixel Decomposition [PDF]

open access: yesSensors
The Tibetan Plateau, known as the “Third Pole” and the “Water Tower of Asia”, has experienced significant changes in its surface water due to global warming.
Yuhang Jing, Zhenguo Niu
doaj   +4 more sources

Retrieval of Fractional Vegetation Cover from Remote Sensing Image of Unmanned Aerial Vehicle Based on Mixed Pixel Decomposition Method

open access: yesDrones, 2023
FVC (fractional vegetation cover) is highly correlated with wheat plant density in the reviving period, which is an important indicator for conducting variable-rate nitrogenous topdressing.
Mengmeng Du   +4 more
doaj   +3 more sources

Estimating Endmember Backscattering Coefficients Within the Mixed Pixels Based on the Microwave Backscattering Contribution Decomposition Model [PDF]

open access: yesSensors
The complexity of land types and the limited spatial resolution of Synthetic Aperture Radar (SAR) imagery have led to widespread mixed-pixel contamination in radar backscatter images.
Yubin Song   +6 more
doaj   +2 more sources

Simulation of the Impact of a Sensor’s PSF on Mixed Pixel Decomposition: 1. Nonuniformity Effect

open access: yesRemote Sensing, 2016
The nonuniformity of the spatial response to surface radiation is a fundamental characteristic of all airborne and spaceborne sensors that inevitably introduces uncertainty into the estimation of object proportions by the spectral unmixing of mixed ...
Chao Xu, Zhaoli Liu, Guanglei Hou
doaj   +3 more sources

Automatic Extraction Method of Green Tide Based on Mixed Pixel Decomposition Feedback Adjustment

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Since 2007, recurring green tides in the Yellow Sea have caused substantial ecological and socioeconomic impacts. Accurate and efficient automated extraction from remote sensing images is vital for monitoring these events.
Dongxue Li   +4 more
doaj   +3 more sources

Inversion of Cotton Soil and Plant Analytical Development Based on Unmanned Aerial Vehicle Multispectral Imagery and Mixed Pixel Decomposition

open access: yesAgriculture
In order to improve the accuracy of multispectral image inversion of soil and plant analytical development (SPAD) of the cotton canopy, image segmentation methods were utilized to remove the background interference, such as soil and shadow in UAV ...
Bingquan Tian   +10 more
doaj   +3 more sources

SURFACE HANDWRITING ENHANCEMENT OF ARTIFACTS BASED ON MANIFOLD LEARNING AND MIXED PIXEL DECOMPOSITION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Written information on the surface of cultural relics can record important historical events. Due to the influence of natural and human factors, the surface of cultural relics fades and the words are difficult to identify.
S. H. Wang   +9 more
doaj   +1 more source

Spatio-Temporal Mixed Pixel Analysis of Savanna Ecosystems: A Review

open access: yesRemote Sensing, 2021
Reliable estimates of savanna vegetation constituents (i.e., woody and herbaceous vegetation) are essential as they are both responders and drivers of global change.
Hilma S. Nghiyalwa   +6 more
doaj   +1 more source

Sub-Pixel Mapping Model Based on Total Variation Regularization and Learned Spatial Dictionary

open access: yesRemote Sensing, 2021
In this research study, we deal with remote sensing data analysis over high dimensional space formed by hyperspectral images. This task is generally complex due to the large spectral, spatial richness, and mixed pixels.
Bouthayna Msellmi   +4 more
doaj   +1 more source

Research on rice acreage estimation in fragmented area based on decomposition of mixed pixels [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Rice acreage estimation is a key aspect to guarantee food security and also important to support government agricultural subsidy system. In this paper, we explored a sophisticated method to improve rice estimation accuracy at county scale and we ...
H. Zhang   +4 more
doaj   +1 more source

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