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Typer CLI package for the Vit medical multi-axis Vision Transformer project.

Project description

btvit-cli

基于 PyTorch 的三轴 ViT 医学影像二分类 CLI。

安装

pip install btvit-cli
vit --version

当前主线

项目现在只保留一条流程:

  1. axis 阶段分别训练 x / y / z 三个轴的单轴 ViT
  2. fusion 阶段复用三轴 encoder,训练患者级 fusion_nn
  3. pred 阶段支持两种患者级输出:
    • weighted_vote
    • fusion_nn
    • both

每个患者的每张 (16, 368) 灰度图都作为独立样本共享患者标签,不再使用旧的中间特征缓存或跨轴组合穷举训练流程。

快速开始

1. 导出模板

vit get --path ./configs

导出内容:

  • model_config.yaml
  • data_config.yaml
  • training_config.yaml
  • experiment_config.yaml
  • multi_axis_config.yaml
  • monitoring_config.yaml
  • USAGE.md

2. 训练三轴 ViT

vit train --config configs/base --stage axis --axis x --verbose
vit train --config configs/base --stage axis --axis y --verbose
vit train --config configs/base --stage axis --axis z --verbose

关键参数:

  • --stage axis
  • --axis x|y|z
  • --config <yaml_dir>
  • --data 可选。未提供时使用 multi_axis.axis_data_paths.<axis>
  • --label 可选。未提供时使用配置文件中的标签路径

3. 训练 fusion 头

vit train --config configs/base --stage fusion --fusion concat --verbose

fusion 阶段会默认解析:

  • experiments/<name>/axis-x/checkpoints/best_model.pth
  • experiments/<name>/axis-y/checkpoints/best_model.pth
  • experiments/<name>/axis-z/checkpoints/best_model.pth

也可以显式覆盖:

  • --axis-checkpoint-x
  • --axis-checkpoint-y
  • --axis-checkpoint-z
  • --fusion sum|concat

4. 患者级预测

vit pred --mode weighted_vote --config configs/base --data dataset/predict_root
vit pred --mode fusion_nn --config configs/base --data dataset/predict_root --fusion concat
vit pred --mode both --config configs/base --data dataset/predict_root --label dataset/label.csv --fusion sum

预测模式:

  • weighted_vote:单图概率 -> 轴内患者均值 -> 三轴均值;均值 > 2/3 判阳性
  • fusion_nn:单图特征 -> 轴内患者均值 -> sum|concat -> fusion head
  • both:同时输出两条分支

预测数据支持:

  1. 根目录包含 data-x/data-y/data-z/
  2. 平铺 PNG 目录,文件名为 {patient_id}_{Z}_{Y}_{X}.png

输出结构

训练输出:

experiments/<experiment_name>/
  axis-x/
    checkpoints/
    results/
    logs/
  axis-y/
    checkpoints/
    results/
    logs/
  axis-z/
    checkpoints/
    results/
    logs/
  fusion/
    checkpoints/
    results/
    logs/
  testset/
    data-x/
    data-y/
    data-z/
    label.csv

预测输出:

  • predictions.csv
  • prediction_summary.json
  • confusion_matrix_weighted_vote.png,当有标签且启用 weighted_vote
  • confusion_matrix_fusion_nn.png,当有标签且启用 fusion_nn

配置要点

  • training.common:设备、worker、混合精度等公共训练参数
  • training.axis:单轴 ViT 训练参数
  • training.fusion:fusion 头训练参数
  • multi_axis.patient_pooling:患者内均值聚合规则
  • multi_axis.weighted_vote:固定三轴投票开关
  • multi_axis.fusion_head:患者级 fusion 头配置,包含 fusion: sum|concat
  • monitoring.axis / monitoring.fusion / monitoring.prediction:分阶段监控与 fusion_nn 预测阈值

开发

conda activate Vit
pip install -e .
vit --help

构建:

conda run -n Vit python -m build

许可证

Apache-2.0

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