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From Arrays to Graph: Different Ways to Represent Image Data in Remote Sensing
A practical overview of image data structures and how they support different analytical methods.
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Revisiting NDFI: A Flexible Index for Forest Monitoring and Beyond
A practical dive into the Normalized Difference Fraction Index (NDFI), its origins in forest degradation monitoring, a deeper understanding on its foundation, and how we can adapt it for different goals like above-ground biomass estimation.
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Mapping Lithium Bearing Mineral in Granite Core Sample with Hyperspectral Imaging
Using Minimum Wavelength Mapper and Decision Tree Classifier to analyze hyperspectral image of lithium bearing granite core sample.
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Multi Sensor Object Based Image Classification for Land Use/Land Cover Analysis
Combinining Landsat-8, Sentinel-1, VIIRS NTL, and SRTM for object based image classification using SNIC and Random Forest
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Spatio-Temporal Analysis of Industrial and Artisinal Offshore Tin Mining Vessel
Object-based image classification of mining vessels using Sentinel-1 timeseries.
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Sentinel 1 Change Detection for Forest Monitoring
Using Sentinel-1 data to detect monthly disturbance of forest canopy
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Sentinel-2 Bare Earth Mosaics
First trial to build Sentinel-2 bare earth mosaics for Indonesia in Earth Engine
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Illegal Mining From Space
Using satellite imagery to monitor illegal mining
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Exploratory Data Analysis (EDA) for Hyperspectral Imagery
My typical approach on EDA for a new hyperspectral projects for geological investigations. Includes method such as PCA, K-Means, N-FINDR, Linear Spectral Unmixing, and Minimum Wavelength Mapping.
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Endmember Extraction from Hyperspectral Imagery Using N-FINDR
A brief overview, ilustration and case example of N-FINDR algorithm to extract mineral endmembers in hyperspectral imagery.