Visual Reference Gallery
Annotated examples, training images, and reference materials organized by dataset and category.
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FAFB 2019
FlyWireFull Adult Fly Brain dataset. Primary source for Drosophila connectomics research.
Synapse
T-bar Synapse
Classic T-bar morphology with platform structure, dense body visible in cross-section.
Synapse
Elongated T-bar
Extended platform variant. Note the longer horizontal extent compared to standard T-bars.
Synapse
Multiple T-bars (Smudge)
Clustered synapses appearing as smudge-like shapes. Common in regions of high synaptic density.
Tissue Fold
Section folded during preparation showing doubled tissue appearance.
Tissue Crack
Fracture in section creating void. Mark as defect, do not annotate across.
False Merger
Two neurons incorrectly joined by automated segmentation. Requires split operation.
BANC
Brain and Nerve CordFull brain and ventral nerve cord dataset providing complete CNS connectivity.
Cell Body (Soma)
Neuronal cell body with visible nucleus. Starting point for morphological tracing.
Axon Bundle
Fasciculated axons in the nerve cord. Note uniform diameter and parallel arrangement.
False Split
Single neuron fragmented into multiple segments. Requires merge operation to reconnect.
Staining Artifact
Uneven heavy metal staining causing contrast issues. May obscure fine structures.
Reference Materials
TrainingProtocol reference images and training materials from expert annotators.
Synapse
GT Protocol Reference 1
Tommy Macrina ground truth protocol. Demonstrates synapse identification criteria.
Synapse
GT Protocol Reference 2
Vesicle cloud identification and synaptic cleft visualization.
Synapse
GT Protocol Reference 3
Post-synaptic density (PSD) characteristics and boundary marking.
Structure
GT Protocol Reference 4
Neurite identification and process tracing guidelines.
Synapse
GT Protocol Reference 5
Synapse type classification and annotation conventions.
Synapse
GT Protocol Reference 6
Ambiguous cases and decision criteria for edge cases.
Additional Resources
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