TEM Axon & Myelin Segmentation Challenge

An international benchmark for nanometer-scale instance segmentation of axons and myelin sheaths in TEM images, tackling the core computer vision bottleneck in automated g-ratio quantification.

€
Prize Pool 500 EUR
🏆 250 EUR
🥈 150 EUR
🥉 100 EUR
Imaging Modality
TEM (100 kV, 3000x, 2.15 nm/px)
Target Classes
Axon & Myelin (paired instances)
Evaluation Metrics
Dice + $\text{HD}_{95}$
Registration Deadline
Nov 09, 2026 (23:59 CET)

Challenge Overview & Registration

Review the scientific background, clinical motivation, and critical dates, then complete the mandatory challenge registration below.

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TEM Dataset & Download Portal

High-resolution 100 kV transmission electron microscopy (TEM) images annotated for two classes: axons and myelin sheaths.

TEM Dataset Repositories

Access the curated training cohort with expert manual pixel annotations, as well as the unannotated test set upon release.

0: Background 1: Artifacts (Ignored) ID X (Even ≥ 2): Axon Instance (e.g., 14) ID X+1 (Odd ≥ 3): Paired Myelin (e.g., 15)
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Evaluation Metrics & Submission

Mathematical formulation of segmentation overlap ($\text{Dice}$), boundary error ($\text{HD}_{95}$), and clinical morphological biomarker error ($\Delta g$-ratio).

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Official Leaderboard & Winners

Official ranking, award distinctions, and validated metric scores for all participating research groups.

🏆

Winners will be announced at SIPAIM 2026

Submissions are currently under independent validation by the ICM.Quant team on high-performance compute clusters. Official awards, oral presentation selections, and certificates will be revealed live during the conference session.

Award Ceremony • SIPAIM 2026
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