XyloMaMi-Bench: A Dual-Scale Macroscopic–Microscopic Wood Species Benchmark

XyloMaMi-Bench-v1.0 Full macroscopic image archive and benchmark infrastructure for XyloMaMi-Bench.The package contains 36,742 macroscopic end-grain images from 100 tropicaltimber species, together with complete split definitions, protocol metadata, andspecies catalogues for the P1/P2/P3 evaluation protocols. Companion Code https://github.com/khanhnt/xylo-mami-bench --- Dataset Access Open Access — no registration required (CC BY-NC 4.0) | File / Folder | Contents ||---|---|| `splits/` | P1/P2/P3 train / validation / test CSV files || `metadata/` | Species catalogues, overlap annotations, genus map || `protocols/` | Protocol definitions and checkpoint-selection rules || `seeds/` | Repeated-seed settings for P3 robustness experiments || `README.md` | This file || `LICENSE.txt` | CC BY-NC 4.0 license || `DATA_USE_AGREEMENT.md` | Data Use Agreement for image archive | Restricted Access — request via Zenodo | File / Folder | Contents ||---|---|| `images/` | 36,742 macroscopic JPEG images (100 species) | To request access:1. Click **"Request access"** on the Zenodo record page.2. Provide your name, institution, and a brief description of intended use.3. Requests are reviewed within five business days. --- Directory Layout ```XyloMaMi-Bench-v1.0/├── README.md├── LICENSE.txt├── DATA_USE_AGREEMENT.md├── images/ │ ├── Afzelia_africana/│ └── ... (100 species directories)├── splits/│ ├── p1_train.csv / p1_val.csv / p1_test.csv│ ├── p2_train.csv / p2_val.csv / p2_test.csv (if --p2)│ └── p3_train.csv / p3_val.csv / p3_test.csv├── metadata/│ ├── species_catalogue.csv│ ├── overlap_annotations.csv│ ├── supp_xylomami_species_catalog.csv│ ├── supp_congo_micro_overlap_catalog.csv│ └── genus_map.json├── protocols/│ ├── protocol_definitions.md│ └── checkpoint_selection_rules.md└── seeds/ └── p3_robustness_seeds.json``` --- Export Summary - Export mode: All images per species (full archive, 36,742 total)--- Dataset Statistics | Item | Value ||---|---|| Macro species | 100 || Total macro images | 36,742 || Image resolution | 1,280 × 1,024 px || Magnification | 50× (Dino-Lite Edge AM4115ZT) || Exact-overlap species (with Congo micro) | 33 || Genus-only overlap species | 22 || Macro-only species | 45 || Label verification | IAWA anatomical + DART-TOFMS (dual-channel) | --- Congo Microscopic Reference The Congo microscopic reference collection (1,219 images, 77 species) used forcross-scale retrieval evaluation is **not included** in this record.It is publicly available at: Rosa da Silva et al. (2017). Annals of Forest Science, 74, 30. Dataset: https://doi.org/10.5281/zenodo.235668 --- Citation ```bibtex@dataset{nguyentrong2026xylomami_data, author = {Nguyen-Trong, Khanh and Le, Loc Thi and Nguyen Bao, Ngoc}, title = {{XyloMaMi-Bench-v1.0}: A Dual-Scale Macroscopic--Microscopic Wood Species Benchmark}, year = {2026}, publisher = {Zenodo}, doi = {10.5281/zenodo.20350819}}``` Contact Khanh Nguyen-Trong — [e-mail] and Telecommunications Institute of Technology (PTIT), Hanoi, Vietnam