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app.py

@@ -26,7 +26,7 @@ else:
 ROOT = Path(__file__).resolve().parent
 
 # Self-heal the training script if a deployment omitted the training/ directory.
-_TRAINING_SCRIPT_B64 = "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"
+_TRAINING_SCRIPT_B64 = "import argparse
import json
from pathlib import Path

import torch
from PIL import Image
from torch.utils.data import Dataset, DataLoader
from tqdm import tqdm
from transformers import RTDetrImageProcessor, RTDetrForObjectDetection

BASE_MODEL = "PekingU/rtdetr_r50vd"

def load_classes(path):
    return [x.strip() for x in Path(path).read_text().splitlines() if x.strip()]

class COCODetectionDataset(Dataset):
    def __init__(self, image_dir, annotation_file, processor):
        self.image_dir = Path(image_dir)
        self.processor = processor
        coco = json.loads(Path(annotation_file).read_text())
        self.images = {x["id"]: x for x in coco["images"]}
        cats = sorted(coco["categories"], key=lambda x: x["id"])
        self.category_id_to_label = {c["id"]: i for i,c in enumerate(cats)}
        anns = {}
        for a in coco["annotations"]:
            if not a.get("iscrowd", 0):
                anns.setdefault(a["image_id"], []).append(a)
        self.records = []
        for image_id, info in self.images.items():
            self.records.append({
                "image_id": image_id, "file_name": info["file_name"],
                "width": info["width"], "height": info["height"],
                "annotations": anns.get(image_id, [])
            })

    def __len__(self): return len(self.records)

    def __getitem__(self, idx):
        r = self.records[idx]
        image = Image.open(self.image_dir / r["file_name"]).convert("RGB")
        anns = []
        for a in r["annotations"]:
            x,y,w,h = a["bbox"]
            if w <= 0 or h <= 0: continue
            anns.append({
                "id": a["id"], "image_id": int(idx),
                "category_id": self.category_id_to_label[a["category_id"]],
                "bbox": [x,y,w,h], "area": float(a.get("area",w*h)),
                "iscrowd": 0
            })
        encoded = self.processor(
            images=image,
            annotations={"image_id": int(idx), "annotations": anns},
            return_tensors="pt"
        )
        encoded["pixel_values"] = encoded["pixel_values"].squeeze(0)
        if "pixel_mask" in encoded:
            encoded["pixel_mask"] = encoded["pixel_mask"].squeeze(0)
        encoded["labels"] = encoded["labels"][0]
        return encoded

def collate_fn(batch):
    out = {"pixel_values": torch.stack([x["pixel_values"] for x in batch]),
           "labels": [x["labels"] for x in batch]}
    if "pixel_mask" in batch[0]:
        out["pixel_mask"] = torch.stack([x["pixel_mask"] for x in batch])
    return out

def move_to_device(obj, device):
    if torch.is_tensor(obj):
        return obj.to(device)
    if isinstance(obj, dict):
        return {k: move_to_device(v, device) for k, v in obj.items()}
    if isinstance(obj, list):
        return [move_to_device(v, device) for v in obj]
    if isinstance(obj, tuple):
        return tuple(move_to_device(v, device) for v in obj)
    return obj

def evaluate(model, loader, device):
    model.eval(); total=0; n=0
    with torch.no_grad():
        for batch in loader:
            batch=move_to_device(batch, device)
            total += float(model(**batch).loss.item()); n += 1
    model.train()
    return total/max(n,1)

def main():
    p=argparse.ArgumentParser()
    p.add_argument("--train-dir",required=True); p.add_argument("--val-dir",required=True)
    p.add_argument("--classes",required=True); p.add_argument("--output-dir",default="model")
    p.add_argument("--epochs",type=int,default=30); p.add_argument("--batch-size",type=int,default=2)
    p.add_argument("--learning-rate",type=float,default=1e-5); p.add_argument("--weight-decay",type=float,default=1e-4)
    p.add_argument("--num-workers",type=int,default=2)
    a=p.parse_args()

    classes=load_classes(a.classes)
    id2label={i:n for i,n in enumerate(classes)}
    label2id={n:i for i,n in enumerate(classes)}

    proc=RTDetrImageProcessor.from_pretrained(BASE_MODEL)
    train=COCODetectionDataset(Path(a.train_dir)/"images",Path(a.train_dir)/"annotations.json",proc)
    val=COCODetectionDataset(Path(a.val_dir)/"images",Path(a.val_dir)/"annotations.json",proc)

    if len(train)==0 or len(val)==0:
        raise ValueError("Training and validation datasets must contain at least one image.")
    if len(train.category_id_to_label)!=len(classes) or len(val.category_id_to_label)!=len(classes):
        raise ValueError("COCO categories do not match classes.txt. Rebuild the dataset after saving the classes.")

    model=RTDetrForObjectDetection.from_pretrained(
        BASE_MODEL,num_labels=len(classes),id2label=id2label,label2id=label2id,
        ignore_mismatched_sizes=True
    )
    # The Hugging Face RT-DETR implementation can leave the contrastive
    # denoising class-index tensor on CPU while the model is on CUDA. This
    # causes the embedding lookup to fail during fine-tuning. Disable the
    # optional denoising branch; ordinary object-detection training remains
    # enabled and works with the 10 custom classes.
    model.config.num_denoising = 0
    if hasattr(model, "model") and hasattr(model.model, "decoder"):
        model.model.decoder.num_denoising = 0
    device=torch.device("cuda" if torch.cuda.is_available() else "cpu")
    model.to(device)

    tr=DataLoader(train,batch_size=a.batch_size,shuffle=True,num_workers=0,collate_fn=collate_fn)
    va=DataLoader(val,batch_size=a.batch_size,shuffle=False,num_workers=0,collate_fn=collate_fn)
    opt=torch.optim.AdamW(model.parameters(),lr=a.learning_rate,weight_decay=a.weight_decay)

    outdir=Path(a.output_dir); outdir.mkdir(parents=True,exist_ok=True)
    best=float("inf")

    for epoch in range(a.epochs):
        model.train(); running=0
        bar=tqdm(tr,desc=f"epoch {epoch+1}/{a.epochs}")
        for step,batch in enumerate(bar):
            batch=move_to_device(batch, device)
            loss=model(**batch).loss
            loss.backward(); opt.step(); opt.zero_grad(set_to_none=True)
            running += float(loss.item())
            bar.set_postfix(loss=f"{running/(step+1):.4f}")
        vl=evaluate(model,va,device)
        print(f"validation_loss={vl:.4f}")
        if vl<best:
            best=vl
            model.save_pretrained(outdir)
            proc.save_pretrained(outdir)
            (outdir/"classes.json").write_text(json.dumps({"id2label":id2label,"label2id":label2id},indent=2))
    model.save_pretrained(outdir); proc.save_pretrained(outdir)

if __name__=="__main__": main()
"
 TRAINING_DIR = ROOT / "training"
 TRAIN_SCRIPT = TRAINING_DIR / "train.py"
 if not TRAIN_SCRIPT.exists():

training/train.py

@@ -112,6 +112,14 @@ def main():
         BASE_MODEL,num_labels=len(classes),id2label=id2label,label2id=label2id,
         ignore_mismatched_sizes=True
     )
+    # The Hugging Face RT-DETR implementation can leave the contrastive
+    # denoising class-index tensor on CPU while the model is on CUDA. This
+    # causes the embedding lookup to fail during fine-tuning. Disable the
+    # optional denoising branch; ordinary object-detection training remains
+    # enabled and works with the 10 custom classes.
+    model.config.num_denoising = 0
+    if hasattr(model, "model") and hasattr(model.model, "decoder"):
+        model.model.decoder.num_denoising = 0
     device=torch.device("cuda" if torch.cuda.is_available() else "cpu")
     model.to(device)