6ad9c4d149
V3 architecture for CVGL caption validation on GTA-UAV-LR dataset: - AsymmetricEncoder: DINOv3 ViT-L/16 (LVD drone + SAT satellite, frozen) + LRSCLIP/DGTRS-CLIP ViT-L-14 text encoder (248 tok, partial unfreeze) - L1/L2/L3 hierarchical captions from VLM-generated descriptions - TextFusionMLP (concat 3x768 -> MLP -> 512) + GatedFusion - Segmentation filter: exclude images with >=90% background+water - 10.9M trainable / 733M total params, 256x256 input - coloredlogs + tqdm + emoji for training UX - Baseline mode (--baseline): image-only, no text encoder loaded Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
133 lines
4.2 KiB
Markdown
133 lines
4.2 KiB
Markdown
# Caption Quality Test for Cross-View Geo-Localization
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Validate whether generated text captions improve retrieval R@1 in cross-view
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geo-localization (drone-to-satellite).
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## Experiments
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### V3 — GTA-UAV + DINOv3 + LRSCLIP (active)
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Asymmetric architecture with domain-specific image encoders and hierarchical text.
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```
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Query: drone_img (DINOv3 LVD) + L1/L2/L3 captions (LRSCLIP) -> GatedFusion -> query
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Gallery: sat_img (DINOv3 SAT) -> gallery
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Loss: InfoNCE(query, gallery)
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```
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**Models:**
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- Drone: DINOv3 ViT-L/16 (LVD-1689M, web pretrained) — 1024-dim, 303M params, frozen
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- Satellite: DINOv3 ViT-L/16 (SAT-493M, satellite pretrained) — 1024-dim, 303M params, frozen
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- Text: DGTRS-CLIP ViT-L-14 (LRSCLIP, 248 tokens) — 768-dim, partial unfreeze
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- Total: 733M params, 10.9M trainable (1.49%)
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**Input:** 256x256, ImageNet normalization
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**Dataset:** GTA-UAV-LR (33K drone + 14K satellite, GTA V synthetic)
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- RGB: `/home/servml/Документы/datasets/GTA-UAV-LR/`
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- Captions: `/home/servml/Документы/datasets/GTA-UAV-LR-captions/` (40K JSON, 3-paragraph VLM)
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- Segmentation: `/home/servml/Документы/datasets/GTA-UAV-LR-aug/` (17 classes)
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- Seg filter: 37,498 passed / 10,905 excluded (>=90% background+water)
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- Train: 15,693 pairs, Test: 18,015 pairs (cross-area split)
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### V2 — UAV-GeoLoc + GeoRSCLIP (legacy)
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Single backbone with template captions.
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```
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Query: drone_img + caption -> GeoRSCLIP -> GatedFusion -> query
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Gallery: sat_img -> GeoRSCLIP -> gallery
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```
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**Dataset:** UAV-GeoLoc Terrain split (206K train queries)
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## Structure
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```
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caption-test/
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├── conf/ # Gin configs (v2)
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│ ├── balanced.gin
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│ ├── baseline_no_text.gin
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│ └── text_heavy.gin
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├── nn_models/ # Pre-trained checkpoints (v3)
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│ ├── DINO_WEB/ # DINOv3 ViT-L/16 LVD-1689M
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│ ├── DINO_SAT/ # DINOv3 ViT-L/16 SAT-493M
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│ └── LRSCLIP/ # DGTRS-CLIP ViT-L-14
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├── scripts/
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│ ├── filter_segmentation.py # Meta-file: exclude 90%+ background/water
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│ ├── compare_runs.py # Delta R@1 comparison report
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│ └── generate_captions.py # Offline caption generation
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├── src/
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│ ├── datasets/
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│ │ ├── gtauav_dataset.py # GTA-UAV-LR loader + L1/L2/L3 captions (v3)
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│ │ └── visloc_with_captions.py # UAV-GeoLoc loader (v2)
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│ ├── models/
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│ │ ├── asymmetric_encoder.py # DINOv3 + LRSCLIP + GatedFusion (v3)
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│ │ └── dual_encoder.py # GeoRSCLIP + GatedFusion (v2)
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│ ├── losses/
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│ │ └── multi_infonce.py # InfoNCE with cosine temperature
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│ ├── training/
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│ │ ├── train_gtauav.py # Training loop GTA-UAV (v3)
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│ │ └── train.py # Training loop UAV-GeoLoc (v2)
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│ └── eval/
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│ └── evaluate.py # R@K metrics, Delta R@1
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└── checkpoints/ # GeoRSCLIP RS5M_ViT-B-32.pt (v2)
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```
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## Prerequisites
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```
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torch>=2.0
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open_clip_torch
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safetensors
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timm
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gin-config
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Pillow
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numpy
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```
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## Workflow (V3 — GTA-UAV)
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### 1. Filter segmentation (exclude uninformative images)
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```bash
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python -m scripts.filter_segmentation --output meta/seg_filter.json
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```
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### 2. Train baseline (no text)
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```bash
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python -m src.training.train_gtauav --baseline --filter-meta meta/seg_filter.json
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```
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### 3. Train with captions (L1/L2/L3)
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```bash
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python -m src.training.train_gtauav --filter-meta meta/seg_filter.json
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```
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### 4. Compare and get verdict
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```bash
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python -m scripts.compare_runs \
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--baseline_report out/gtauav/baseline/eval_report.json \
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--full_report out/gtauav/with_text/eval_report.json \
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--output out/gtauav/comparison.md
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```
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## Decision rule
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| Delta R@1 (drone->satellite) | Verdict |
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| >= +3% | PASS -- captions informative, proceed to NADEZHDA teacher |
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| +1% to +3% | MARGINAL -- add VLM refinement, re-run |
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| 0 to +1% | WEAK -- redesign caption pipeline |
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| < 0 | HARMFUL -- critical bug |
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## Code style
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- `from __future__ import annotations` everywhere
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- Type hints on all signatures
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- Google-style docstrings
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- No emojis in code, English-only comments
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