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chore: README improve
Browse filesREADME.md changed from en -> zh
add frontmatter within it
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README.md
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> **
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---
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##
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1. [Official Pretrained Models](#official-pretrained-models)
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2. [Fine-tuned Models
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3. [ONNX Model Variants](#onnx-model-variants)
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4. [Directory Structure](#directory-structure)
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5. [Generation & Deployment Guide](#generation--deployment-guide)
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---
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## 1. Official Pretrained Models
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### 1.1 Photographic Portrait Matting
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### 1.2 Webcam Portrait Matting
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```
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MODNet
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### 1.3 MobileNetV2 Human Segmentation
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```
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---
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## 2. Fine-tuned Models
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### 2.1 Pure Batch Normalization Variant
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####
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####
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|------
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| Dataset | P3M-10k
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| Batch Size | 8 |
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| Epochs | 15 |
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| Learning Rate
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| Optimizer | Adam (β₁=0.9, β₂=0.999) |
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| Loss Function | L1
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| Device | NVIDIA A100 (CUDA 11.8) |
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#### Artifacts
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```
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photographic/finetune/
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├── checkpoints/
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│ ├── modnet_bn_best.ckpt # ★
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│ ├── modnet_bn_epoch_01.ckpt
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│ ├── modnet_bn_epoch_02.ckpt
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│ ├── ...
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│ └── modnet_bn_epoch_15.ckpt
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├── logs/
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│ └── block1_2_training_20260319_154018.log #
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├── onnx/
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│ └── modnet_bn_best_pureBN.onnx # ★ ONNX
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└── output/
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├── epoch_01_val.png #
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├── epoch_02_val.png
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├── ...
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└── epoch_15_val.png #
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```
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#### Validation Loss Curve
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```
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Epoch | Val L1 Loss |
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------|-------------|-------------------
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1 | 0.0264 | Δ = -0.0202
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2 | 0.0175 | Δ = -0.0089
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3 | 0.0121 | Δ = -0.0054
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4 | 0.0098 | Δ = -0.0023
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5 | 0.0089 | Δ = -0.0009
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6 | 0.0081 | Δ = -0.0008
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7 | 0.0076 | Δ = -0.0005
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8 | 0.0074 | Δ = -0.0002
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9 | 0.0072 | Δ = -0.0002
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10 | 0.0070 | Δ = -0.0002
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11 | 0.0068 | Δ = -0.0002
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12 | 0.0066 | Δ = -0.0002
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13 | 0.0065 | Δ = -0.0001
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14 | 0.0063 | Δ = -0.0002
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15 | 0.0062 | Δ = -0.0001
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→
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```
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####
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```
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# PyTorch
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import torch
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from modnet import MODNet
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model.load_state_dict(checkpoint)
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model.eval()
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#
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import onnxruntime
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sess = onnxruntime.InferenceSession('photographic/finetune/onnx/modnet_bn_best_pureBN.onnx')
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```
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## 3. ONNX Model Variants
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### 3.1
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```
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### 3.2 Folded Variant
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- Var(x) = E[x²] − (E[x])²
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```
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### 3.3
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```
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★
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✓
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✓
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✓
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✓
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✓
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- ONNX Runtime 1.16.3
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- ONNX Runtime 1.16.3
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- RKNN
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```
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####
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```
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Golden Test Vector
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- Python
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```
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## 4. Directory Structure
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```
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MODNet/
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│
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├── README.md ←
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│
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├── [
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│ ├── mobilenetv2_human_seg.ckpt
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│ └── modnet_webcam_portrait_matting.ckpt
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│
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└── photographic/ ← ★
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├── README.md
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├── [
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│ ├── modnet_photographic_portrait_matting.ckpt (1.8 GB)
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│ ├── modnet_photographic_portrait_matting.onnx (26 MB, InstanceNorm)
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│ └── modnet_photographic_portrait_matting_in_folded.onnx (26 MB, folded)
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└── finetune/ ← ★
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│
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├── checkpoints/
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│ ├── modnet_bn_best.ckpt ★ (1.8 GB,
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│ ├── modnet_bn_epoch_01.ckpt
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│ ├── modnet_bn_epoch_02.ckpt
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│ ├── ... (
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│ └── modnet_bn_epoch_15.ckpt
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├── onnx/
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│ └── modnet_bn_best_pureBN.onnx ★ (25 MB,
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├── logs/
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│ └── block1_2_training_20260319_154018.log
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│
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└── output/
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├── epoch_01_val.png
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├── epoch_02_val.png
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├── ... (
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└── epoch_15_val.png
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```
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## 5. Generation & Deployment Guide
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### 5.1
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```python
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# $ cd helmsman.git/
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# $ python3 third-party/scripts/modnet/train_modnet_block1_2.py
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import torch
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import onnx
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from modnet import MODNet # Pure-BN
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checkpoint = torch.load('checkpoints/modnet_bn_best.ckpt')
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model = MODNet()
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model.load_state_dict(checkpoint)
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model.eval()
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# Dummy
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dummy_input = torch.randn(1, 3, 512, 512)
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#
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torch.onnx.export(
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model, dummy_input,
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'onnx/modnet_bn_best_pureBN.onnx',
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export_params=True,
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opset_version=11,
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do_constant_folding=False, #
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input_names=['input'],
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output_names=['output'],
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dynamic_axes={
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onnx_model = onnx.load('onnx/modnet_bn_best_pureBN.onnx')
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onnx.checker.check_model(onnx_model)
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print("✓ ONNX
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```
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### 5.2 C++
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```bash
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cd helmsman.git/
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./helmsman prepare #
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./helmsman build cpp cb native #
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./install/native/release/bin/Helmsman_Matting_Client \
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<input_image> \
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photographic/finetune/onnx/modnet_bn_best_pureBN.onnx \
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<output_dir>
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#
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python3 tools/MODNet/verify_golden_tensor.py
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```
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### 5.3 Deployment Checklist
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- [ ] ONNX
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- [ ] C++
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- [ ] Python
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## 6. Quick Reference
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## 7. RobustVideoMatting
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### 7.1 ONNX
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| **MobileNetV3 FP32** | `rvm_mobilenetv3_fp32.onnx` | 14.3MB | MobileNetV3 |
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| **MobileNetV3 FP16** | `rvm_mobilenetv3_fp16.onnx` | 7.2MB | MobileNetV3 |
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| **256×256 FP16** | `rvm_mobilenetv3_fp16_256x256_rk3588_fp16_v20260416.rknn` | 9.0MB | 256×256 | FP16 | 0.25 | Phase-1 验证用 | §3 |
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| **288×512 FP16** | `rvm_mobilenetv3_fp16_288x512_rk3588_fp16_v20260416.rknn` | 9.3MB | 288×512 | FP16 | 0.25 | 早期
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| **1080p FP16 (dsr=0.25)** | `rvm_mobilenetv3_fp16_1080x1920_rk3588_fp16.rknn` | 12MB | 1080×1920 | FP16 | 0.25 | **当前默认模型** | §12-§13, §20 |
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| **1080p FP16 (dsr=0.5)** | `rvm_mobilenetv3_fp16_1080x1920_0.5-dsr_rk3588_fp16.rknn` | 16MB | 1080×1920 | FP16 | 0.5 | **最佳质量模型** | §21 |
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| **256×256 INT8** | `rvm_mobilenetv3_int8_256x256_rk3588_int8_v20260416.rknn` | 5.5MB | 256×256 | INT8 | 0.25 | Phase-4 量化实验 | §4 |
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| **288×512 INT8** | `rvm_mobilenetv3_int8_288x512_rk3588_int8_v20260416.rknn` | 5.7MB | 288×512 | INT8 | 0.25 | Phase-4 量化实验 | §4 |
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| 1080p FP16 (s20) | 0.25 | 2.30 | 86.6% | ~485ms | r2o stride padding: OK |
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| **Quality-first** | `rvm_mobilenetv3_fp16_1080x1920_0.5-dsr_rk3588_fp16.rknn` | mean_diff=2.18, best alpha edges |
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| **Low memory** | `rvm_mobilenetv3_fp16_288x512_rk3588_fp16_v20260416.rknn` | Smallest r-state footprint |
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## 8. Related Documentation
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---
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##
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```
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[Config] Device: cuda
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---
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---
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language:
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- en
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- zh
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tags:
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- image-matting
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- portrait-segmentation
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- modnet
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- onnx
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- rknn
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- rk3588
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- video-matting
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| 13 |
+
- robust-video-matting
|
| 14 |
+
license: mit
|
| 15 |
+
library_name: pytorch
|
| 16 |
+
base_model: ZHKKKe/MODNet
|
| 17 |
+
pipeline_tag: image-segmentation
|
| 18 |
+
---
|
| 19 |
|
| 20 |
+
# MODNet 模型制品仓库 (Model Artifact Registry)
|
| 21 |
+
|
| 22 |
+
> **用途**:集中管理 MODNet 检查点(Checkpoint)、ONNX 模型及训练制品(Training Artifacts)
|
| 23 |
+
>
|
| 24 |
+
> **维护者**:PotterWhite
|
| 25 |
+
> **最后更新**:2026-03-31
|
| 26 |
+
> **许可证(License)**:MIT
|
| 27 |
|
| 28 |
---
|
| 29 |
|
| 30 |
+
## 目录(Table of Contents)
|
| 31 |
|
| 32 |
+
1. [官方预训练模型(Official Pretrained Models)](#1-官方预训练模型official-pretrained-models)
|
| 33 |
+
2. [微调模型(Fine-tuned Models)—— 摄影数据集](#2-微调模型fine-tuned-models-摄影数据集)
|
| 34 |
+
3. [ONNX 模型变体(ONNX Model Variants)](#3-onnx-模型变体onnx-model-variants)
|
| 35 |
+
4. [目录结构(Directory Structure)](#4-目录结构directory-structure)
|
| 36 |
+
5. [生成与部署指南(Generation & Deployment Guide)](#5-生成与部署指南generation--deployment-guide)
|
| 37 |
+
6. [速查表(Quick Reference)](#6-速查表quick-reference)
|
| 38 |
+
7. [RobustVideoMatting(RVM)模型](#7-robustvideoMattingrvm模型)
|
| 39 |
+
8. [相关文档(Related Documentation)](#8-相关文档related-documentation)
|
| 40 |
|
| 41 |
---
|
| 42 |
|
| 43 |
+
## 1. 官方预训练模型(Official Pretrained Models)
|
| 44 |
|
| 45 |
+
### 1.1 摄影人像抠图(Photographic Portrait Matting)
|
| 46 |
|
| 47 |
+
**文件**:`photographic/modnet_photographic_portrait_matting.ckpt`
|
| 48 |
|
| 49 |
```
|
| 50 |
+
原始 MODNet 检查点,在人像抠图数据集上训练
|
| 51 |
+
- 来源:作者 Google Drive(ZHKKKe/MODNet)
|
| 52 |
+
- 格式:PyTorch .ckpt(state_dict)
|
| 53 |
+
- 架构:MODNet + IBNorm + InstanceNormalization
|
| 54 |
+
- 输入尺寸:512×512
|
| 55 |
+
- 用途:微调实验的基线参考
|
| 56 |
+
- 状态:✓ 生产基线
|
| 57 |
```
|
| 58 |
|
| 59 |
+
### 1.2 摄像头人像抠图(Webcam Portrait Matting)
|
| 60 |
|
| 61 |
+
**文件**:`modnet_webcam_portrait_matting.ckpt`
|
| 62 |
|
| 63 |
```
|
| 64 |
+
针对摄像头实时抠图优化的 MODNet 检查点
|
| 65 |
+
- 来源:作者 Google Drive
|
| 66 |
+
- 格式:PyTorch .ckpt(state_dict)
|
| 67 |
+
- 架构:MODNet + IBNorm + InstanceNormalization
|
| 68 |
+
- 输入尺寸:384×384(更低延迟)
|
| 69 |
+
- 用途:实时视频/直播场景
|
| 70 |
+
- 状态:✓ 可用,当前管线未使用
|
| 71 |
```
|
| 72 |
|
| 73 |
+
### 1.3 MobileNetV2 人体分割(Human Segmentation)
|
| 74 |
|
| 75 |
+
**文件**:`mobilenetv2_human_seg.ckpt`
|
| 76 |
|
| 77 |
```
|
| 78 |
+
辅助分割模型,用于预处理阶段
|
| 79 |
+
- 来源:作者 Google Drive
|
| 80 |
+
- 格式:PyTorch .ckpt
|
| 81 |
+
- 用途:可选预处理阶段(当前未部署)
|
| 82 |
+
- 状态:✓ 可用作参考
|
| 83 |
```
|
| 84 |
|
| 85 |
---
|
| 86 |
|
| 87 |
+
## 2. 微调模型(Fine-tuned Models)—— 摄影数据集
|
| 88 |
|
| 89 |
+
### 2.1 纯批归一化变体(Pure Batch Normalization Variant)
|
| 90 |
|
| 91 |
+
**训练轮次**:Block 1.2 微调(2026-03-19 ~ 2026-03-19)
|
| 92 |
|
| 93 |
+
#### 概要
|
| 94 |
|
| 95 |
```
|
| 96 |
+
在 P3M-10k 摄影数据集上微调 MODNet-BN
|
| 97 |
+
- 将所有 IBNorm + InstanceNormalization 替换为纯 BatchNorm2d
|
| 98 |
+
- 15 个 Epoch 的监督训练,含学习率调度(Learning Rate Schedule)
|
| 99 |
+
- 最佳模型:验证集 L1 Loss 0.0062
|
| 100 |
```
|
| 101 |
|
| 102 |
+
#### 训练配置
|
| 103 |
+
|
| 104 |
+
| 参数 | 值 |
|
| 105 |
+
|------|-----|
|
| 106 |
+
| 数据集(Dataset) | P3M-10k(Photographic 子集) |
|
| 107 |
+
| 训练样本数 | 9,421 |
|
| 108 |
+
| 验证样本数 | 500 |
|
| 109 |
+
| 批大小(Batch Size) | 8 |
|
| 110 |
+
| 轮次(Epochs) | 15 |
|
| 111 |
+
| 初始学习率(Learning Rate) | 0.01 |
|
| 112 |
+
| 学习率调度 | StepLR:γ=0.1 @ epoch 5, 10 |
|
| 113 |
+
| 输入尺寸 | 512×512 |
|
| 114 |
+
| 优化器(Optimizer) | Adam (β₁=0.9, β₂=0.999) |
|
| 115 |
+
| 损失函数(Loss Function) | L1(MAE),作用于 alpha 遮罩 |
|
| 116 |
+
| 设备(Device) | NVIDIA A100 (CUDA 11.8) |
|
| 117 |
+
| 训练时长 | ~4 小时 |
|
| 118 |
+
| 时间戳 | 2026-03-19 15:40:18 |
|
| 119 |
+
|
| 120 |
+
#### 生成的制品(Artifacts)
|
| 121 |
|
| 122 |
```
|
| 123 |
photographic/finetune/
|
| 124 |
├── checkpoints/
|
| 125 |
+
│ ├── modnet_bn_best.ckpt # ★ 最佳模型(Val L1: 0.0062)
|
| 126 |
│ ├── modnet_bn_epoch_01.ckpt
|
| 127 |
│ ├── modnet_bn_epoch_02.ckpt
|
| 128 |
+
│ ├── ...(epoch 3-14 省略)
|
| 129 |
│ └── modnet_bn_epoch_15.ckpt
|
| 130 |
├── logs/
|
| 131 |
+
│ └── block1_2_training_20260319_154018.log # 训练日志(详细)
|
| 132 |
├── onnx/
|
| 133 |
+
│ └── modnet_bn_best_pureBN.onnx # ★ ONNX 导出(见 §3.3)
|
| 134 |
└── output/
|
| 135 |
+
├── epoch_01_val.png # 验证预览(第 1 轮)
|
| 136 |
├── epoch_02_val.png
|
| 137 |
+
├── ...(epoch 3-14 省略)
|
| 138 |
+
└── epoch_15_val.png # 最终验证可视化
|
| 139 |
```
|
| 140 |
|
| 141 |
+
#### 验证损失曲线(Validation Loss Curve)
|
| 142 |
|
| 143 |
```
|
| 144 |
+
Epoch | Val L1 Loss | 改进幅度
|
| 145 |
------|-------------|-------------------
|
| 146 |
+
1 | 0.0264 | Δ = -0.0202(新最佳)
|
| 147 |
+
2 | 0.0175 | Δ = -0.0089(新最佳)
|
| 148 |
+
3 | 0.0121 | Δ = -0.0054(新最佳)
|
| 149 |
+
4 | 0.0098 | Δ = -0.0023(新最佳)
|
| 150 |
+
5 | 0.0089 | Δ = -0.0009(新最佳)
|
| 151 |
+
6 | 0.0081 | Δ = -0.0008(新最佳)
|
| 152 |
+
7 | 0.0076 | Δ = -0.0005(新最佳)
|
| 153 |
+
8 | 0.0074 | Δ = -0.0002(新最佳)
|
| 154 |
+
9 | 0.0072 | Δ = -0.0002(新最佳)
|
| 155 |
+
10 | 0.0070 | Δ = -0.0002(新最佳)
|
| 156 |
+
11 | 0.0068 | Δ = -0.0002(新最佳)
|
| 157 |
+
12 | 0.0066 | Δ = -0.0002(新最佳)
|
| 158 |
+
13 | 0.0065 | Δ = -0.0001(新最佳)
|
| 159 |
+
14 | 0.0063 | Δ = -0.0002(新最佳)
|
| 160 |
+
15 | 0.0062 | Δ = -0.0001(最终)
|
| 161 |
+
|
| 162 |
+
→ 第 5 轮后收敛(学习率调度生效),持续稳步改进
|
| 163 |
```
|
| 164 |
|
| 165 |
+
#### 使用方法
|
| 166 |
|
| 167 |
+
```python
|
| 168 |
+
# PyTorch 推理
|
| 169 |
import torch
|
| 170 |
from modnet import MODNet
|
| 171 |
|
|
|
|
| 174 |
model.load_state_dict(checkpoint)
|
| 175 |
model.eval()
|
| 176 |
|
| 177 |
+
# 或使用 ONNX 推理(推荐用于部署)
|
| 178 |
import onnxruntime
|
| 179 |
sess = onnxruntime.InferenceSession('photographic/finetune/onnx/modnet_bn_best_pureBN.onnx')
|
| 180 |
```
|
| 181 |
|
| 182 |
---
|
| 183 |
|
| 184 |
+
## 3. ONNX 模型变体(ONNX Model Variants)
|
| 185 |
|
| 186 |
+
### 3.1 官方原始版本(Photographic)
|
| 187 |
|
| 188 |
+
**文件**:`photographic/modnet_photographic_portrait_matting.onnx`
|
| 189 |
|
| 190 |
```
|
| 191 |
+
从官方检查点直接导出的 ONNX
|
| 192 |
+
- 来源:作者 Google Drive
|
| 193 |
+
- 格式:ONNX opset 11
|
| 194 |
+
- 包含:InstanceNormalization 算子
|
| 195 |
+
- 输入:[1, 3, 512, 512](float32,[-1, 1] 归一化)
|
| 196 |
+
- 输出:[1, 1, 512, 512](float32,[0, 1] 范围)
|
| 197 |
+
- 状态:✓ 对比参考
|
| 198 |
+
- 注意:InstanceNormalization 在 NPU 上会回退到 CPU,**不推荐用于边缘部署**
|
| 199 |
```
|
| 200 |
|
| 201 |
+
### 3.2 折叠变体(Folded Variant,Anti-fusion)
|
| 202 |
|
| 203 |
+
**文件**:`photographic/modnet_photographic_portrait_matting_in_folded.onnx`
|
| 204 |
|
| 205 |
```
|
| 206 |
+
通过 anti-fusion 方法展开 InstanceNormalization
|
| 207 |
+
- 优化者:PotterWhite (potter_white@outlook.com)
|
| 208 |
+
- 日期:2026-03-11 16:11
|
| 209 |
+
- 方法:将 InstanceNorm 展开为算术原语
|
| 210 |
- Var(x) = E[x²] − (E[x])²
|
| 211 |
+
- 防止 RKNN 编译器重新识别 InstanceNormalization
|
| 212 |
+
- 强制在 CPU 上执行(负面效果)
|
| 213 |
+
- 状态:⚠️ 实验性,不推荐
|
| 214 |
+
- 分析:违背了优化初衷
|
| 215 |
```
|
| 216 |
|
| 217 |
+
### 3.3 纯批归一化版本(ONNX 导出)
|
| 218 |
|
| 219 |
+
**文件**:`photographic/finetune/onnx/modnet_bn_best_pureBN.onnx`
|
| 220 |
|
| 221 |
```
|
| 222 |
+
★ 推荐用于部署
|
| 223 |
+
|
| 224 |
+
从 modnet_bn_best.ckpt(微调模型)导出的 ONNX
|
| 225 |
+
- 来源:PyTorch 微调训练(第 15 轮)
|
| 226 |
+
- 导出日期:2026-03-31 16:15
|
| 227 |
+
- 格式:ONNX opset 11
|
| 228 |
+
- 架构:纯 BatchNormalization(无 InstanceNorm)
|
| 229 |
+
- 输入:[1, 3, 512, 512](float32,[-1, 1] 归一化)
|
| 230 |
+
- 输出:[1, 1, 512, 512](float32,[0, 1] 范围)
|
| 231 |
+
- 文件大小:25 MB
|
| 232 |
+
- 状态:✓ 可用于 C++ 推理的生产版本
|
| 233 |
+
|
| 234 |
+
推荐理由:
|
| 235 |
+
✓ 无 InstanceNormalization → 更好的 NPU 调度
|
| 236 |
+
✓ 全部算子:Conv2d, BatchNorm2d, ReLU 等(硬件友好)
|
| 237 |
+
✓ 定点推理下数值精度更优
|
| 238 |
+
✓ RKNN 工具链编译更快
|
| 239 |
+
✓ 比 IBNorm 变体收敛更好
|
| 240 |
+
|
| 241 |
+
已测试环境:
|
| 242 |
+
- ONNX Runtime 1.16.3(CPU, x86_64)
|
| 243 |
+
- ONNX Runtime 1.16.3(aarch64, 模拟环境)
|
| 244 |
+
- RKNN 工具链 v2.3.2(编译阶段验证)
|
| 245 |
```
|
| 246 |
|
| 247 |
+
#### 验证结果(对比参考)
|
| 248 |
|
| 249 |
```
|
| 250 |
+
黄金测试向量(Golden Test Vector):green-fall-girl-point-to.png (1803×1019)
|
| 251 |
+
- Python 推理输出:py_08_inference-Output.bin ✓
|
| 252 |
+
- C++ 推理输出:cpp_08_inference-Output.bin(待 C++ 构建)
|
| 253 |
+
- 预期匹配:像素级 L∞ 误差 < 1e-5(float32 精度)
|
| 254 |
```
|
| 255 |
|
| 256 |
---
|
| 257 |
|
| 258 |
+
## 4. 目录结构(Directory Structure)
|
| 259 |
|
| 260 |
```
|
| 261 |
MODNet/
|
| 262 |
│
|
| 263 |
+
├── README.md ← 当前文件
|
| 264 |
│
|
| 265 |
+
├── [官方模型 - 根目录]
|
| 266 |
+
│ ├── mobilenetv2_human_seg.ckpt (备份,非活跃)
|
| 267 |
+
│ └── modnet_webcam_portrait_matting.ckpt (参考用,384×384)
|
| 268 |
│
|
| 269 |
+
└── photographic/ ← ★ 活跃部署变体
|
| 270 |
│
|
| 271 |
+
├── README.md (历史文件,已被取代)
|
| 272 |
│
|
| 273 |
+
├── [官方基线]
|
| 274 |
│ ├── modnet_photographic_portrait_matting.ckpt (1.8 GB)
|
| 275 |
│ ├── modnet_photographic_portrait_matting.onnx (26 MB, InstanceNorm)
|
| 276 |
│ └── modnet_photographic_portrait_matting_in_folded.onnx (26 MB, folded)
|
| 277 |
│
|
| 278 |
+
└── finetune/ ← ★ 活跃训练输出
|
| 279 |
│
|
| 280 |
+
├── checkpoints/ (PyTorch 制品)
|
| 281 |
+
│ ├── modnet_bn_best.ckpt ★ (1.8 GB, 最佳模型)
|
| 282 |
│ ├── modnet_bn_epoch_01.ckpt
|
| 283 |
│ ├── modnet_bn_epoch_02.ckpt
|
| 284 |
+
│ ├── ... (epoch 3-14)
|
| 285 |
│ └── modnet_bn_epoch_15.ckpt
|
| 286 |
│
|
| 287 |
+
├── onnx/ (部署用)
|
| 288 |
+
│ └── modnet_bn_best_pureBN.onnx ★ (25 MB, 推荐)
|
| 289 |
│
|
| 290 |
+
├── logs/ (元数据)
|
| 291 |
│ └── block1_2_training_20260319_154018.log
|
| 292 |
│
|
| 293 |
+
└── output/ (验证可视化)
|
| 294 |
├── epoch_01_val.png
|
| 295 |
├── epoch_02_val.png
|
| 296 |
+
├── ... (epoch 3-14)
|
| 297 |
└── epoch_15_val.png
|
| 298 |
```
|
| 299 |
|
| 300 |
---
|
| 301 |
|
| 302 |
+
## 5. 生成与部署指南(Generation & Deployment Guide)
|
| 303 |
|
| 304 |
+
### 5.1 ONNX 生成方法
|
| 305 |
|
| 306 |
```python
|
| 307 |
+
# 第 1 步:训练微调检查点
|
| 308 |
# $ cd helmsman.git/
|
| 309 |
# $ python3 third-party/scripts/modnet/train_modnet_block1_2.py
|
| 310 |
+
# → 输出:photographic/finetune/checkpoints/modnet_bn_best.ckpt
|
| 311 |
|
| 312 |
+
# 第 2 步:导出为 ONNX(Pure-BN 架构)
|
| 313 |
import torch
|
| 314 |
import onnx
|
| 315 |
+
from modnet import MODNet # Pure-BN 版本
|
| 316 |
|
| 317 |
checkpoint = torch.load('checkpoints/modnet_bn_best.ckpt')
|
| 318 |
model = MODNet()
|
| 319 |
model.load_state_dict(checkpoint)
|
| 320 |
model.eval()
|
| 321 |
|
| 322 |
+
# 虚拟输入(Dummy Input)
|
| 323 |
dummy_input = torch.randn(1, 3, 512, 512)
|
| 324 |
|
| 325 |
+
# 导出,支持动态轴(Dynamic Axes)
|
| 326 |
torch.onnx.export(
|
| 327 |
+
model, dummy_input,
|
| 328 |
'onnx/modnet_bn_best_pureBN.onnx',
|
| 329 |
export_params=True,
|
| 330 |
opset_version=11,
|
| 331 |
+
do_constant_folding=False, # 保留 BN 参数可见
|
| 332 |
input_names=['input'],
|
| 333 |
output_names=['output'],
|
| 334 |
dynamic_axes={
|
|
|
|
| 337 |
}
|
| 338 |
)
|
| 339 |
|
| 340 |
+
# 第 3 步:验证 ONNX 模型
|
| 341 |
onnx_model = onnx.load('onnx/modnet_bn_best_pureBN.onnx')
|
| 342 |
onnx.checker.check_model(onnx_model)
|
| 343 |
+
print("✓ ONNX 模型验证通过")
|
| 344 |
```
|
| 345 |
|
| 346 |
+
### 5.2 C++ 推理部署
|
| 347 |
|
| 348 |
```bash
|
| 349 |
+
# 构建 C++ 推理引擎
|
| 350 |
cd helmsman.git/
|
| 351 |
+
./helmsman prepare # 安装 Python 依赖、MODNet 子模块
|
| 352 |
+
./helmsman build cpp cb native # 清理构建(x86_64 原生)
|
| 353 |
|
| 354 |
+
# 运行推理
|
| 355 |
./install/native/release/bin/Helmsman_Matting_Client \
|
| 356 |
<input_image> \
|
| 357 |
photographic/finetune/onnx/modnet_bn_best_pureBN.onnx \
|
| 358 |
<output_dir>
|
| 359 |
|
| 360 |
+
# 对比 Python 黄金参考
|
| 361 |
python3 tools/MODNet/verify_golden_tensor.py
|
| 362 |
```
|
| 363 |
|
| 364 |
+
### 5.3 部署清单(Deployment Checklist)
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+
- [ ] ONNX 模型通过 `onnx.checker.check_model()` 验证
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| 367 |
+
- [ ] C++ 构建通过黄金张量验证(Golden Tensor Verification)
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| 368 |
+
- [ ] Python 与 C++ 推理输出匹配(L∞ 误差 < 1e-5)
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| 369 |
+
- [ ] 边缘设备(RK3588S)交叉编译测试通过
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+
- [ ] 延迟基准测试:每次推理 < 100ms(512×512 输入)
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---
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+
## 6. 速查表(Quick Reference)
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+
| 模型 | 文件 | 大小 | 用途 | 状态 |
|
| 377 |
+
|------|------|------|------|------|
|
| 378 |
+
| **官方摄影模型** | `photographic/modnet_photographic_portrait_matting.ckpt` | 1.8 GB | 基线参考 | ✓ 参考 |
|
| 379 |
+
| **官方 ONNX** | `photographic/modnet_photographic_portrait_matting.onnx` | 26 MB | InstanceNorm 变体 | ⚠️ 不推荐 |
|
| 380 |
+
| **微调最佳模型** | `photographic/finetune/checkpoints/modnet_bn_best.ckpt` | 1.8 GB | PyTorch 部署 | ✓ 生产 |
|
| 381 |
+
| **微调 ONNX** | `photographic/finetune/onnx/modnet_bn_best_pureBN.onnx` | 25 MB | C++/RKNN 部署 | ★ **推荐** |
|
| 382 |
+
| **摄像头模型** | `modnet_webcam_portrait_matting.ckpt` | 1.8 GB | 实时流媒体 | ✓ 可用 |
|
| 383 |
|
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---
|
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|
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+
## 7. RobustVideoMatting(RVM)模型
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|
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+
### 7.1 ONNX 模型
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|
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+
位于 `RobustVideoMatting/onnx/`。
|
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|
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+
| 模型 | 文件 | 大小 | 骨干网络(Backbone) | 精炼器(Refiner) | 来源 |
|
| 393 |
+
|------|------|------|----------|---------|------|
|
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+
| **MobileNetV3 FP32** | `rvm_mobilenetv3_fp32.onnx` | 14.3MB | MobileNetV3 | 无 | PeterL1n/RobustVideoMatting v1.0.0 |
|
| 395 |
+
| **MobileNetV3 FP16** | `rvm_mobilenetv3_fp16.onnx` | 7.2MB | MobileNetV3 | 无 | FP16 导出 |
|
| 396 |
+
| **MobileNetV3 FP32(无精炼器)** | `rvm_mobilenetv3_fp32_no_refiner.onnx` | 14.3MB | MobileNetV3 | 无 | 移除 refiner 算子 |
|
| 397 |
+
| **ResNet50 FP32** | `rvm_resnet50_fp32.onnx` | ~90MB | ResNet50 | 无 | PeterL1n v1.0.0 |
|
| 398 |
+
| **ResNet50 FP16** | `rvm_resnet50_fp16.onnx` | ~45MB | ResNet50 | 无 | FP16 导出 |
|
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|
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+
**关键模型属性**(MobileNetV3):
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+
- Opset 12,IR version 6,353 个节点
|
| 402 |
+
- 零个 InstanceNorm 节点(NPU 友好)
|
| 403 |
+
- 无精炼器算子(DeepGuidedFilterRefiner 未包含)
|
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+
- 6 个输入:`src [1,3,H,W]`、`r1i~r4i`(ConvGRU 状态)、`downsample_ratio [1]`
|
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+
- 经 ArcFoundry `fold_constant_inputs` 处理后:5 个输入(downsample_ratio 烘焙为常量)
|
| 406 |
|
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+
### 7.2 RKNN 模型
|
| 408 |
|
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+
位于 `RobustVideoMatting/rknn/`。
|
| 410 |
|
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+
| 模型 | 文件 | 大小 | 分辨率 | 精度 | dsr | 状态 | PKB 参考 |
|
| 412 |
+
|------|------|------|--------|------|-----|------|----------|
|
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| **256×256 FP16** | `rvm_mobilenetv3_fp16_256x256_rk3588_fp16_v20260416.rknn` | 9.0MB | 256×256 | FP16 | 0.25 | Phase-1 验证用 | §3 |
|
| 414 |
+
| **288×512 FP16** | `rvm_mobilenetv3_fp16_288x512_rk3588_fp16_v20260416.rknn` | 9.3MB | 288×512 | FP16 | 0.25 | 早期板端实验 | §3 |
|
| 415 |
| **1080p FP16 (dsr=0.25)** | `rvm_mobilenetv3_fp16_1080x1920_rk3588_fp16.rknn` | 12MB | 1080×1920 | FP16 | 0.25 | **当前默认模型** | §12-§13, §20 |
|
| 416 |
| **1080p FP16 (dsr=0.5)** | `rvm_mobilenetv3_fp16_1080x1920_0.5-dsr_rk3588_fp16.rknn` | 16MB | 1080×1920 | FP16 | 0.5 | **最佳质量模型** | §21 |
|
| 417 |
| **256×256 INT8** | `rvm_mobilenetv3_int8_256x256_rk3588_int8_v20260416.rknn` | 5.5MB | 256×256 | INT8 | 0.25 | Phase-4 量化实验 | §4 |
|
| 418 |
| **288×512 INT8** | `rvm_mobilenetv3_int8_288x512_rk3588_int8_v20260416.rknn` | 5.7MB | 288×512 | INT8 | 0.25 | Phase-4 量化实验 | §4 |
|
| 419 |
|
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+
**转换工具**:[ArcFoundry](https://github.com/PotterWhite/ArcFoundry.git) v0.14.0
|
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+
- 配置目录:`ArcFoundry.git/configs/rvm/`
|
| 422 |
+
- 目标平台:RK3588
|
| 423 |
+
- 归一化:`mean=[0,0,0], std=[255,255,255]`(RKNN 运行时执行 `/255.0`)
|
| 424 |
|
| 425 |
+
### 7.3 质量总结(s14/s20/s21 板端实验)
|
| 426 |
|
| 427 |
+
| 模型 | dsr | 与 PyTorch 的 mean_diff | bg_ratio | 速度(推理+合成) | 备注 |
|
| 428 |
+
|------|-----|------------------------|----------|------------------|------|
|
| 429 |
+
| 1080p FP16 (s14) | 0.25 | 2.30 | 86.6% | ~485ms | NCHW→NHWC 转置修复 |
|
| 430 |
| 1080p FP16 (s20) | 0.25 | 2.30 | 86.6% | ~485ms | r2o stride padding: OK |
|
| 431 |
+
| 1080p FP16 (s21) | 0.5 | **2.18** | **86.5%** | ~691ms | **最佳质量** |
|
| 432 |
+
|
| 433 |
+
- PyTorch 基线 bg_ratio:86.6%(dsr=0.25)、86.5%(dsr=0.5)
|
| 434 |
+
- 所有模型在 `dance.mp4` 上测试(363 帧,1920×1080)
|
| 435 |
+
- 板端:RK3588S,NPU0=40%,NPU1&2=10%
|
| 436 |
|
| 437 |
+
### 7.4 推荐模型选择
|
|
|
|
|
|
|
| 438 |
|
| 439 |
+
| 使用场景 | 推荐模型 | 理由 |
|
| 440 |
+
|----------|---------|------|
|
| 441 |
+
| **质量优先** | `rvm_mobilenetv3_fp16_1080x1920_0.5-dsr_rk3588_fp16.rknn` | mean_diff=2.18,最佳 alpha 边缘 |
|
| 442 |
+
| **速度优先** | `rvm_mobilenetv3_fp16_1080x1920_rk3588_fp16.rknn` | 比 dsr=0.5 快 1.43 倍 |
|
| 443 |
+
| **低内存** | `rvm_mobilenetv3_fp16_288x512_rk3588_fp16_v20260416.rknn` | 最小 r-state 占用 |
|
| 444 |
|
| 445 |
+
---
|
|
|
|
|
|
|
|
|
|
|
|
|
| 446 |
|
| 447 |
+
## 8. 相关文档(Related Documentation)
|
| 448 |
|
| 449 |
+
- **训练脚本**:`helmsman.git/third-party/scripts/modnet/train_modnet_block1_2.py`
|
| 450 |
+
- **ONNX 导出脚本**:`helmsman.git/third-party/scripts/modnet/onnx/export_onnx_pureBN.py`
|
| 451 |
+
- **C++ 推理**:`helmsman.git/runtime/cpp/apps/matting/client/`
|
| 452 |
+
- **Python 黄金参考**:`helmsman.git/third-party/scripts/modnet/onnx/generate_golden_files.py`
|
| 453 |
+
- **验证工具**:`helmsman.git/tools/MODNet/verify_golden_tensor.py`
|
| 454 |
+
- **RVM PKB**:`/volumes_pkb_helmsman/model/round2-rvm/log-MR2-P5-rknn-inference.md`
|
| 455 |
+
- **RVM ArcFoundry 配置**:`ArcFoundry.git/configs/rvm/`
|
| 456 |
|
| 457 |
---
|
| 458 |
|
| 459 |
+
## 附录:训练日志摘要
|
| 460 |
|
| 461 |
```
|
| 462 |
[Config] Device: cuda
|
|
|
|
| 478 |
|
| 479 |
---
|
| 480 |
|
| 481 |
+
**文档版本**:1.1
|
| 482 |
+
**最后更新**:2026-05-06 by Claude Code (AI Agent)
|
| 483 |
+
**提交历史**:通过 Git commit message 追踪
|