Demining Research Community Seeded Field: High-Resolution RGB, Thermal IR, and Multispectral Orthomosaics

Motivation & Field Design The Demining Research Community’s seeded test field in Pawnee, Oklahoma, comprises 150 diverse explosive remnants of war (ERW) buried at systematically varied depths. Operated in partnership with the OSU Global Consortium for Explosive Hazard Mitigation, this site provides a well-characterized benchmark for the humanitarian mine-action community—enabling rigorous testing and comparison of remote-sensing methods and instruments for landmine and UXO detection. Dataset Overview This release includes fifteen orthomosaic datasets spanning three sensor modalities—visible (RGB), thermal infrared (TIR), and multispectral—collected over the seeded fields. All missions flew at 12 m altitude in grid patterns with 80 % frontlap and 75 % sidelap to maximize coverage and uniform ground-sampling distance (GSD). RGB Imagery Platforms: Autel EVO II Dual (RGB) and DJI Mavic 3E (wide-angle RGB) GSD: 0.21 cm/pixel Surveys: Six flights at intervals from immediate post-burial to one year Flight Planning: Native Autel/DJI controller software Thermal Infrared (TIR) Imagery Platform: Autel EVO II Dual (TIR) GSD: 0.37 cm/pixel Surveys: Five flights covering pre-burial through one-year post-burial Multispectral Imagery Sensor: Parrot Sequoia (Green, Red, Red-Edge, NIR) mounted on DJI Phantom 3 Pro GSD: 1.17 cm/pixel Survey: Single mission at one year post-burial, flown via UgCS All raw imagery were processed in Pix4D Mapper (2025) using: 3D Maps template for RGB Thermal Camera template for TIR Ag Multispectral template for Sequoia Processed orthomosaics were imported into QGIS, georeferenced using six Trimble GNSS ground control points (linear transformation), and clipped to the study-area polygon to yield clean, rectangular outputs. Orthomosaic Catalog ID Field Sensor & Band Timing (post burial of items) 3-1 Field 1 EVO II Dual RGB 0 days (pre-burial) 3-2 Field 1 EVO II Dual RGB 3 months 19-1 Field 2 Mavic 3E RGB 0 days 19-2 Field 2 Mavic 3E RGB 1 year 34-1 Field 3 Mavic 3E RGB 0 days (pre-burial) 34-2 Field 3 Mavic 3E RGB 0 days 4-1 Field 1 EVO II Dual TIR 0 days (pre-burial) 4-2 Field 1 EVO II Dual TIR 1 hour 4-3 Field 1 EVO II Dual TIR 3 months 18-1 Field 2 EVO II Dual TIR 1 year 18-2 Field 2 EVO II Dual TIR 1 year 30-1 Field 2 Sequoia RED 1 year 30-2 Field 2 Sequoia RED-EDGE 1 year 30-3 Field 2 Sequoia NIR 1 year 30-4 Field 2 Sequoia GREEN 1 year Usage & CitationWhen using these orthomosaics, please cite the foundational field design paper: Baur, J., Steinberg, G., Frucci, J., & Brinkley, A. (2023). An accessible seeded field for humanitarian mine action research. The Journal of Conventional Weapons Destruction, 27(3), 2.