Lmst

Improving Forest Loss Mapping In Nepal Using Landtrendr Time-Series And Machine Learning
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https://doi.org/10.1016/j.rsase.2025.101864 <-- share paper
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“HIGHLIGHTS:
• ViT-based forest mask, multispectral ensemble LandTrendr and terrain shadow mask.
• District-level RF/XGBoost model training with expert-weighted validation.
• Outperformed GFC and REDD + AI benchmarks in accuracy and F1 performance.
• RF excelled in High Mountains/Himalayas; XGBoost in the lower Mountain regions.
• NBR contributed the most; snow-impacted forest loss uncertainty was observed..."
#Forestdisturbance #forest #disturbance #remotesensing #LandTrendr #workflow #timeseries #ViT #RF #XGBoost #GEE #Nepal #ForestNepal #spatial #GIS #mapping #earthobservation #landsat #Himalayas #mountains #alpine #vegetation #AI #multispectral #monitoring #spatialanalysis #spatiotemporal #loss #change #machinelearning #NDR #conservation #planning #policy #mitagion #ecology #Karnali #Bagmati, #Darchula #Siwalik #GlobalForestChange #Degradation

🫥 Cameras that see the unseen promise smarter, faster recycling of everyday waste

https://techxplore.com/news/2025-09-cameras-unseen-smarter-faster-recycling.html

#sensors #imaging #multispectral #technology #materials #recycling #waste

Am vergangenen Freitag und Samstag fand unser Sommerkurs „Schriftkulturen des Mittelalters in digitaler Perspektive“ in der Staatsbibliothek zu Berlin statt (https://blog.sbb.berlin/termin/mittelalterliche-schriftkulturen-in-digitaler-perspektive/). Neben #TEI und #HTR ging es auch um #multispectral imaging und Materialanalyse. Wir hatten tolle Teilnehmende, die in den verschiedenen Hands-On-Sessions mitgemacht haben, z.b. in unserem Handschriftenlesesaal, um das digitale DinoLite-Mikroskop (UV, VIS, IR) kennenzulernen.

Blick in den Handschriftenlesesaal mit mittelalterlichen Handschriften, Laptops und DinoLite-Mikroskopen

Monday is the start of the summer school in #digital #palaeography which I run in Göttingen every summer. We have 16 amazing international students and 2 weeks to play with #medieval fragments, #multispectral imaging, network analysis, bookbindings, biocodicology and much much more, topped off by a trip to the fabulous @hab_wf and a hackathon. It's the absolute highlight of my year. Follow this year's posts and photos via #SummerSchool25. @histodons @medievodons @historikerinnen

Book frame made of light wood lying on a white metal chest of drawers, with two books on top and one next to it on the top left.

Over the past week, we've conducted drone surveys at archaeological sites in Sinarcas, Caudete de las Fuentes, Ademuz, and Moixent, using #multispectral and #LiDAR sensors. A big thank you to the #NTNU University Museum for their invaluable support, particularly to Professor Ole Risbøl and Magnar Mojaren Gran for their expertise. Through this collaboration, we’ve had the opportunity to learn from their extensive knowledge, enhancing our skills and understanding while working with these methods.

[New Video] Real-time Human Detection with 4-Band Raspberry Pi Camera
Check out our new demo video showing real-time human detection using a 4-Band Raspberry Pi Camera! The video displays the camera's view along with inference results highlighting detected humans.
🎥 Demo Video: https://youtu.be/oafrmEUXJYA?si=mPRbKomyCWjVvOAb
📄 Paper: https://doi.org/10.3390/jimaging11040093
#Multispectral #ComputerVision #EdgeAI #RaspberryPi #HumanDetection

Monitoring Earth's Glacial Lakes From Space With Machine Learning
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https://dx.doi.org/10.2139/ssrn.5200494 <-- shared paper
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#GIS #spatial #mapping #spatialanalysis #spatiotemporal #satellite #earthobservation #remotesensing #glacier #glacial #glaciallakes #lakes #water #hydrology #melting #climatechange #risk #hazard #publicsafety #infrastructure #damage #loss #cost #economics #mountain #cryosphere #artificiaintelligence #glaciallakeoutburstflood #GLOF #satelliteimageanalysis #AI #machinelearning #deeplearning #literaturereview #landsat #sentinel #radar #highalpine #costbenefit #multispectral #hyperspectral #detection

[New Paper] A Color‑Based Multispectral Imaging Approach for a Human‑Detection Camera
“HitoMi‑Cam” uses a 4‑band snapshot filter + Raspberry Pi to detect humans in real‑time (15 fps).
📄 Paper: https://doi.org/10.3390/jimaging11040093
🎥 Demo: https://youtu.be/VE2gudrNOCs?si=HBEnEruAqIxxN1Dt
#Multispectral #ComputerVision #EdgeAI

The Harmonized Landsat Sentinel-2 Project Releases Vegetation Indices
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https://www.earthdata.nasa.gov/news/harmonized-landsat-sentinel-2-project-releases-vegetation-indices <-- shared technical article
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https://hls.gsfc.nasa.gov/ <-- shared NASA Harmonized Landsat Sentinel-2 Project page
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https://youtu.be/63ljR84c85M?si=3Q0PDOuFgKG8nIrA <-- shared NASA overview video
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#GIS #spatial #mapping #fedscience #OPERA #remotesensing #earthobservation #satellite #opendata #global #vegetation #indices #HLS #Landsat #Sentinel #HLSL30VI #HLSSS30VI #greenness #moisturecontent #burned #change #OLI #MultiSpectral #NDVI
@nasa | @ESA

A Google-Backed… [Satellite] To [Help] Battle Wildfires Made It Into Orbit
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https://techcrunch.com/2025/03/17/a-google-backed-weapon-to-battle-wildfires-made-it-into-orbit/ <-- shared technical article
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https://sites.research.google/gr/wildfires/firesat/ <-- shared Google FireSat home page
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https://youtu.be/pmQlXLaHT_Y?si=q3wM80t7qQysAQxU <-- shared video overview of FireSat
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https://www.earthfirealliance.org/ <-- shared Earth Fire Alliance home page
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[this post should not be considered an endorsement of this product]
#GIS #spatial #mapping #FireSat #monitoring #fire #wildfire #EarthFireAlliance #Google #satellite #remotesensing #earthobservation #detection #tracking #earlywarning #multispectral #infrared #spatialanalysis #spatiotemporal #risk #hazard #climatechange #extremeweather #impacts #humanimpacts #infrastructure #damage #AI #machinelearning #emergencyresponse #model #modeling
@Google @GoogleResearch @EarthFireAlliance @MuonSpace

Multispectral Remote Sensing Expression of Lineaments and Alteration Minerals in Part of Crystalline Rock Units of Southwestern Nigeria - Implication on Gold Prospecting
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https://doi.org/10.1016/j.oreoa.2025.100091 <-- shared paper
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#GIS #spatial #mapping #ASTER #Gold #Hydrothermal #HydrothermalAlteration #Lineament #Landsat #ETM #EnhancedThematicMapper #phyllic #Ilesha #schist #belt #geology #mining #Nigeria #naturalresources #mineral #mineralresources #golddeposits #aerogeophysical #remotesensing #geophysical #spatialanalysis #geomorphology #geomorphometry #alteration #propylitic #argillic #mineralogy #XRD #structuralgeology #lithology #PrincipalComponentAnalysis #PCA #prospecting #fracture #joints #faulting #Multispectral #Lineaments #Crystalline

aerial oblique image - existing gold mine, Nigeria

geology/geomorphology map - Showing VES Positions Overlay on Mineral Prospective Map

(a) Lineament Map of the Study Area (b) Lineament Density Map of the Study Area (c) Superposition of Lineament on Geology Map of the Study Area

maps of remote sensing data - (a) Composite (RGB) 7, 5, 2 Image of the Study Area (b) Composite (RGB) 3, 2, 1 Image of the Study Area (c) Composite (RGB) 4, 3, 1 Image of the Study Area (d) Composite (RGB) 3, 2, 1 Image of the Study Area

Revealing #palimpest with #multispectral #imaging! These amazing results, showing a #Merovingian overtext and a 5th-century Gospel undertext, were achieved by my colleague Alex Zawacki at Göttingen. I'll be presenting the full results of this and other cool discoveries in May at a German-language conference in Kiel.

#palaeography @medievodons @histodons

Part of a medieval manuscript, set on its side, with the two lines of the overtext in 2 vertical lines on the left, and 6 lines of faintly brown undertext running horizontally across the image.

A false-color #multispectral photo I took of a larkspur with UV and IR light mapped on top of a regular visible-color photo. Inner parts of the flower petals reflect more UV than others and thus show up in blue. Other parts absorb UV but reflect IR, resulting in the red colors seen in the inner part of the flower and stems. Many flowers use this contrast to help pollinators (who often can see UV) to distinguish key parts of the flower.

#photography #uvphotography #infraredphotography

A close-up of a flower with droplets of water on its petals. The flower exhibits shades of blue, purple and pink, set against a dark background.

All Huawei Pura 80 models tipped to feature Mate 70's multi-spectral camera sensor
#Huawei #HuaweiPura80 #MultiSpectral #Camera
https://www.huaweicentral.com/all-huawei-pura-80-models-can-feature-multi-spectral-camera-sensor/

Evidenced Paleodrainages In Desert Regions Of Saudi Arabia - Satellite Images With Field-Based Study
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https://doi.org/10.21203/rs.3.rs-4959129/v1 <-- shared paper
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#GIS #spatial #mapping #water #hydrology #streams #poroussediments #pebbles #RadarImages #SaudiArabia #MiddleEast #remotesensing #drainage #paleodrainage #desert #evidence #satellite #imagery #fieldwork #fieldchecked #Quaternary #Pleistocene #climatechange #geology #landform #geomorphology #arid #streamnetwork #PALSAR #ASTER #thermaldifferentiation #spatialanalysis #multispectral #sediment #lithology #hydromorphic #geomorphmetry #waterresources #usecase

maps and photo - Abrupt cut of drainages when reaching loose materials (e.g., sands) as revealed on a geologic map; the same location in the map is shown in the attached photo

annotated image maps - The images above show the current drainages existed on SRTM DEM; while the image below is a processed ALOS PALSAR image showing traces of delta-like shape paleodrainages (DPl); but they do not coincide with the current drainages in the SRTM DEM (image above). Triangle at point S1 is the site where the stratigraphic sequence was investigated.

photo - sand meets the rock outcrops, Hafar Al Batin desert

annotated image maps - he image above shows a shaded figure for an odd paleodrainage (OPl) as shown on the processed ASTER image. The same ASTER image was used below after projecting the current drainages extracted from STRM DEM. There is no coincidence between the OPl and the current drainages evidencing an invisible paleodrainage (OPl). Triangle at point S2 is the site where the stratigraphic sequence was investigated

My first image from my hacked-together #multispectral (IR, UV, and visible light) camera. Near IR is in red, visible light is in green, and UV is in blue.

The camera itself is a monochrome camera I normally use for solar imaging, while the lens is just a regular Nikon 50 f/1.8D. Between the two is an electronic filter wheel with IR pass, IR cut, and UV pass filters.

#uvphotography #irphotography #photography

A landscape with a greenish-blue sky and distant hills with houses on them. In the foreground are more houses and palm trees. The vegetation varies between orange and red instead green.

Project 2, supervised by @fbenitez.bsky.social:

Identification of native vegetation species by linking UAV imagery with terrestrial spectroradiometers
https://iapetus2.ac.uk/studentships/identification-of-native-vegetation-species-by-linking-uav-imagery-with-terrestrial-spectroradiometers/

This project will develop accurate and efficient spatial data science methods to classify and monitor native vegetation species in subtropical regions from #UAV #multispectral #imagery and field #spectrometer data.

#PhD #GISchat #SpatialDataScience #SpatialAnalysis #StudyInScotland

Zum Ende meines Bibliotheksreferendariats habe ich vier Wochen lang das Handschriftenzentrum an der @ubleipzig kennengelernt. Inklusive war die Teilnahme am „9. Alfried Krupp-Sommerkurs für Handschriftenkultur“, in dem auch #multispectral #imaging zum Einsatz kam. Danke an das tolle Team für eine schöne Zeit 😊

Liturgische Handschrift mit Musiknotation. 15. Jahrhundert, UB Leipzig, Ms 770

From 09 Sep: New multispectral analysis of Voynich manuscript reveals hidden details - Enlarge / Medieval scholar Lisa Fagin Davis examined multispectral images of 10 pages from... https://arstechnica.com/science/2024/09/new-multispectral-analysis-of-voynich-manuscript-reveals-hidden-details/ #archaeology #cryptography #medieval-manuscripts #multispectral-imaging #science #voynich-manuscript

#MultiSpectral

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