Axonet VAE Stage1
A variational autoencoder for semantic segmentation of neuronal morphologies from 2D projections.
Modellquelle
- Art
- Other
- Dateigröße
- 58,8–176 MB
- Version
- vRevision 392df99
- Aktualisiert
- 9. Okt. 2026
- Downloads
- 17
- Quelle
- Hugging Face
Quellenbeschreibung
AxoNet VAE Stage 1
A variational autoencoder for semantic segmentation of neuronal morphologies from 2D projections.
Model Description
AxoNet VAE is a U-Net architecture with:
- Variational bottleneck: Global latent space for neuron embeddings
- Variational skip connections: Prevents information bypass around the bottleneck
- Multi-task heads: Segmentation (6 classes) + depth estimation
Architecture
- Base channels: 64
- Latent channels: 128
- Input: Single-channel grayscale (512x512)
- Output: 6-class segmentation + depth map
Segmentation Classes
| Index | Class | Description |
|---|---|---|
| 0 | background | Non-neuron pixels |
| 1 | soma | Cell body |
| 2 | axon | Axonal processes |
| 3 | basal_dendrite | Basal dendritic arbor |
| 4 | apical_dendrite | Apical dendritic arbor |
| 5 | other | Unclassified neurite |
Training
- Dataset: broadinstitute/axonet-neuromorpho-dataset
- Neurons: 7,158 (curated from NeuroMorpho.org)
- Images: ~164K multi-view renderings
- Epochs: 22
- Batch size: 32
- Hardware: 2x NVIDIA A100 80GB
Usage
Quick Start
import torch
from huggingface_hub import hf_hub_download
# Download model
model_path = hf_hub_download(
repo_id="broadinstitute/axonet-vae-stage1",
filename="pytorch_model.bin"
)
# Load weights (requires axonet package)
from axonet.models.d3_swc_vae import SegVAE2D
model = SegVAE2D(
in_channels=1,
base_channels=64,
num_classes=6,
latent_channels=128,
skip_mode="variational",
)
model.load_state_dict(torch.load(model_path))
model.eval()
Inference
import torch
from PIL import Image
import numpy as np
# Load and preprocess image
img = Image.open("neuron_mask.png").convert("L")
img = img.resize((512, 512))
tensor = torch.from_numpy(np.array(img) / 255.0).float()
tensor = tensor.unsqueeze(0).unsqueeze(0) # (1, 1, 512, 512)
# Run inference
with torch.no_grad():
outputs = model(tensor, return_latent=True)
segmentation = outputs["seg_logits"].argmax(dim=1) # (1, 512, 512)
depth = outputs["depth"] # (1, 1, 512, 512)
embedding = outputs["mu"].mean(dim=(2, 3)) # (1, 128) - latent embedding
Extract Embeddings
# Get neuron embedding for downstream tasks
with torch.no_grad():
z, mu, logvar, _, _, _ = model.encode(tensor)
embedding = mu.mean(dim=(2, 3)) # Global average pooling
Files
| File | Description |
|---|---|
pytorch_model.bin | PyTorch state dict |
model.safetensors | Safetensors format (recommended) |
config.json | Model configuration |
full_checkpoint/best.ckpt | Full Lightning checkpoint |
Downstream Model
This model serves as the encoder for:
- broadinstitute/axonet-clip-stage2 - CLIP model for text-image retrieval
Citation
@misc{axonet2025,
author = {Hall, Giles},
title = {AxoNet: Multimodal Neuron Morphology Embeddings via 2D Projections},
year = {2025},
publisher = {HuggingFace},
howpublished = {\url{https://huggingface.co/broadinstitute/axonet-vae-stage1}}
}
License
MIT License
Quellen
1 Quelle
Quellen
1 QuelleVerifiziert 9. Okt.
Modellartefakte
3 Artefakte
Modellartefakte
3 ArtefakteQuellenauszüge
3 Auszüge
Quellenauszüge
3 Auszüge--- language: - en license: mit library_name: pytorch tags: - neuroscience - vae - segmentation - morphology - unet pipeline_tag: image-segmentation datasets: - broadinstitute/axonet-neuromorpho-dataset --- # AxoNet VAE Stage 1 A variational autoencoder for semantic segmentation of neuronal morphologies from 2D projections. ## Model Description AxoNet VAE is a U-Net architecture with: - **Variational bottleneck**: Global latent space for neuron embeddings - **Variational skip connections**: Prevents information bypass around the bottleneck - **Multi-task heads**: Segmentation (6 classes) + depth estimation ### Architecture - Base channels: 64 - Latent channels: 128 - Input: Single-channel grayscale (512x512) - Output: 6-class segmentation + depth map ### Segmentation Classes | Index | Class | Description | |-------|-------|-------------| | 0 | background | Non-neuron pixels | | 1 | soma | Cell body | | 2 | axon | Axonal processes | | 3 | basal_dendrite | Basal dendritic arbor | | 4 | apical_dendrite | Apical dendritic arbor | | 5 | other | Unclassified neurite | ## Training - **Dataset**: [broadinstitute/axonet-neuromorpho-dataset](https://huggingface.co/datasets/broadinstitute/axonet-neuromorpho-dataset) - **Neurons**: 7,158 (curated from NeuroMorpho.org) - **Images**: ~164K multi-view renderings - **Epochs**: 22 - **Batch size**: 32 - **Hardware**: 2x NVIDIA A100 80GB ## Usage ### Quick Start ```python import torch from huggingface_hub import hf_hub_download # Download model model_path = hf_hub_download( repo_id="broadinstitute/axonet-vae-stage1", filename="pytorch_model.bin" ) # Load weights (requires axonet package) from axonet.models.d3_swc_vae import SegVAE2D model = SegVAE2D( in_channels=1, base_channels=64, num_classes=6, latent_channels=128, skip_mode="variational", ) model.load_state_dict(torch.load(model_path)) model.eval() ``` ### Inference ```python import torch from PIL import Image import numpy as np # Load and preprocess image img = Image.open("neuron_mask.png").convert("L") img = img.resize((512, 512)) tensor = torch.from_numpy(np.array(img) / 255.0).float() tensor = tensor.unsqueeze(0).unsqueeze(0) # (1, 1, 512, 512) # Run inference with torch.no_grad(): outputs = model(tensor, return_latent=True) segmentation = outputs["seg_logits"].argmax(dim=1) # (1, 512, 512) depth = outputs["depth"] # (1, 1, 512, 512) em...
Source context: 17 downloads · 0 likes · Pipeline image-segmentation · Library pytorch · Repo broadinstitute/axonet-vae-stage1
Source context: 4 downloads · 0 likes · Pipeline image-segmentation · Library pytorch · Repo broadinstitute/axonet-vae-stage1
