Results 11 to 20 of about 100,332 (258)
The primary goal of thematic accuracy assessment is to measure the quality of land cover products and it has become an essential component in global or regional land cover mapping.
Jianyu Gu, Russell G. Congalton
doaj +3 more sources
Automatic Extraction Method of Green Tide Based on Mixed Pixel Decomposition Feedback Adjustment
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 +2 more sources
The southeastern portion of the Urumieh–Dokhtar magmatic arc (UDMA), known as Kerman Cenozoic magmatic arc (KCMA), is a major host to world-class giant to subeconomic small porphyry copper deposits (PCDs) in Iran.
Yousef Bahrami +2 more
doaj +2 more sources
With the increase in the availability of multitemporal hyperspectral images (HSIs), HSIs change detection (CD) methods, including pixel-level and subpixel-level based methods, have attracted great attention in recent years.
Qingle Guo +3 more
doaj +1 more source
A New Elbow Estimation Method for Selecting the Best Solution in Sparse Unmixing
The goal of hyperspectral image analysis is often to determine which materials, out of a given set of possibilities, are present in each pixel. As hyperspectral data are being gathered in rapidly increasing amounts, automatic image analysis is becoming ...
Risto Sarjonen, Tomi Raty
doaj +1 more source
MAPPING FOREST DISTURBANCE USING PURE FOREST INDEX TIME SERIES AND CCDC ALGORITHM [PDF]
Forest dynamics are closely related to climate change, natural disasters, and ecological diversity. The accumulated Landsat archive provides an unprecedented opportunity for long-term forest dynamics monitoring globally.
Y. Cai, Q. Shi, X. Liu
doaj +1 more source
Estimation of the Conifer-Broadleaf Ratio in Mixed Forests Based on Time-Series Data
Most natural forests are mixed forests, a mixed broadleaf-conifer forest is essentially a heterogeneously mixed pixel in remote sensing images. Satellite missions rely on modeling to acquire regional or global vegetation parameter products.
Ranran Yang +4 more
doaj +1 more source
Low-dose CT Reconstruction Algorithm Based on Iterative Asymmetric Blind Spot Network [PDF]
Aiming at the problem that the method of low-dose CT reconstruction by machine learning method relies too much on pairwise legends,a low-dose CT reconstruction algorithm based on iterative asymmetric blind spot network is proposed.Firstly,low-dose CT is ...
GUO Guangxing, YIN Guimei, LIU Chenxu, DUAN Yonghong, QIANG Yan, WANG Yanfei, WANG Tao
doaj +1 more source
INFRARED ROTATION PLANE RADAR CHANGE DETECTION [PDF]
The existing change detection method mainly stays on the pixel-level, which is very susceptible to light, shadow, etc. And the complex calculation and analysis for each pixel reduce the detection efficiency.
Y. Wang +5 more
doaj +1 more source
Discriminating small wooded elements in rural landscape from aerial photography: a hybrid pixel/object-based analysis approach [PDF]
While small, fragmented wooded elements do not represent a large surface area in agricultural landscape, their role in the sustainability of ecological processes is recognized widely.
Ouin, Annie +5 more
core +1 more source

