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Refactor: 레이블 카테고리를 포함한 학습 구현 및 리팩토링 - S11P21S002-228

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김진현 2024-09-23 13:06:48 +09:00
parent ae3506d2eb
commit 1b17cfadad
3 changed files with 61 additions and 101 deletions
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63
ai/app/api/yolo/detection.py
View File

@ -5,6 +5,7 @@ from schemas.predict_request import PredictRequest
from schemas.train_request import TrainRequest
from schemas.predict_response import PredictResponse, LabelData
from services.load_model import load_detection_model
from services.create_model import save_model
from utils.dataset_utils import split_data
from utils.file_utils import get_dataset_root_path, process_directories, process_image_and_label, join_path, get_model_path
from utils.websocket_utils import WebSocketClient, WebSocketConnectionException
@ -159,15 +160,6 @@ async def detection_predict(request: PredictRequest):
@router.post("/train")
async def detection_train(request: TrainRequest):
# 데이터셋 루트 경로 얻기
dataset_root_path = get_dataset_root_path(request.project_id)
# 디렉토리 생성 및 초기화
process_directories(dataset_root_path)
# 학습 데이터 분류
train_data, val_data = split_data(request.data, request.ratio, request.seed)
# Spring 서버의 WebSocket URL
# TODO: 배포시에 변경
spring_server_ws_url = f"ws://localhost:8080/ws"
@ -175,9 +167,34 @@ async def detection_train(request: TrainRequest):
# WebSocketClient 인스턴스 생성
ws_client = WebSocketClient(spring_server_ws_url)
# 데이터셋 루트 경로 얻기
dataset_root_path = get_dataset_root_path(request.project_id)
# 모델 로드
try:
model_path = request.m_key and get_model_path(request.project_id, request.m_key)
model = load_detection_model(model_path=model_path)
except Exception as e:
raise HTTPException(status_code=500, detail="load model exception: " + str(e))
# 학습할 모델 카테고리 정리 카테고리가 추가되는 경우에 추가할 수 있게
names = model.names
# 디렉토리 생성 및 초기화
process_directories(dataset_root_path, names)
# 레이블 맵
inverted_label_map = None
if request.label_map:
inverted_label_map = {value: key for key, value in request.label_map.items()}
# 학습 데이터 분류
train_data, val_data = split_data(request.data, request.ratio, request.seed)
try:
await ws_client.connect()
if not ws_client.is_connected():
raise WebSocketConnectionException()
# 학습 데이터 처리
total_data = len(train_data)
@ -208,11 +225,35 @@ async def detection_train(request: TrainRequest):
epochs=request.epochs,
batch=request.batch,
)
# return FileResponse(path=join_path(dataset_root_path, "result", "weights", "best.pt"), filename="best.pt", media_type="application/octet-stream")
return {"status": "Training completed successfully"}
except WebSocketConnectionException as e:
# 학습 데이터 처리
total_data = len(train_data)
for idx, data in enumerate(train_data):
# TODO: 비동기면 await 연결
process_image_and_label(data, dataset_root_path, "train", inverted_label_map)
# 검증 데이터 처리
total_val_data = len(val_data)
for idx, data in enumerate(val_data):
# TODO: 비동기면 await 연결
process_image_and_label(data, dataset_root_path, "val", inverted_label_map)
results = model.train(
data=join_path(dataset_root_path, "dataset.yaml"),
name=join_path(dataset_root_path, "result"),
epochs=request.epochs,
batch=request.batch,
)
model_key = save_model(project_id=request.project_id, path=join_path(dataset_root_path, "result", "weights", "last.pt"))
return {"model_key": model_key, "results": results.results_dict}
except Exception as e:
print(f"Training process failed: {str(e)}")
raise HTTPException(status_code=500, detail="Training process failed")

3
ai/app/schemas/train_request.py
View File

@ -8,9 +8,10 @@ class TrainDataInfo(BaseModel):
class TrainRequest(BaseModel):
project_id: int
m_key: Optional[str] = Field(None, alias="model_key")
label_map: dict[int, int] = Field(None, description="모델 레이블 카테고리 idx: 프로젝트 레이블 카테고리 idx , None 일경우 레이블 데이터(프로젝트 레이블)의 idx로 학습")
data: List[TrainDataInfo]
seed: Optional[int] = None # 랜덤 변수 시드
ratio: float = 0.8 # 훈련/검증 분할 비율
epochs: int = 50 # 훈련 반복 횟수
batch: Union[float, int] = -1 # 훈련 batch 수[int] or GPU의 사용률 자동[float] default(-1): gpu의 60% 사용 유지
path: Optional[str] = Field(None, alias="model_path")

96
ai/app/utils/file_utils.py
View File

@ -6,7 +6,7 @@ from schemas.train_request import TrainDataInfo
def get_dataset_root_path(project_id):
"""데이터셋 루트 절대 경로 반환"""
return os.path.join(os.getcwd(), 'datasets', 'train')
return os.path.join(os.getcwd(), 'resources', 'projects', str(project_id), "train")
def make_dir(path:str, init: bool):
"""
@ -17,108 +17,26 @@ def make_dir(path:str, init: bool):
shutil.rmtree(path)
os.makedirs(path, exist_ok=True)
def make_yml(path:str):
def make_yml(path:str, names):
data = {
"train": f"{path}/train",
"val": f"{path}/val",
"nc": 80,
"names":
{
0: "person",
1: "bicycle",
2: "car",
3: "motorcycle",
4: "airplane",
5: "bus",
6: "train",
7: "truck",
8: "boat",
9: "traffic light",
10: "fire hydrant",
11: "stop sign",
12: "parking meter",
13: "bench",
14: "bird",
15: "cat",
16: "dog",
17: "horse",
18: "sheep",
19: "cow",
20: "elephant",
21: "bear",
22: "zebra",
23: "giraffe",
24: "backpack",
25: "umbrella",
26: "handbag",
27: "tie",
28: "suitcase",
29: "frisbee",
30: "skis",
31: "snowboard",
32: "sports ball",
33: "kite",
34: "baseball bat",
35: "baseball glove",
36: "skateboard",
37: "surfboard",
38: "tennis racket",
39: "bottle",
40: "wine glass",
41: "cup",
42: "fork",
43: "knife",
44: "spoon",
45: "bowl",
46: "banana",
47: "apple",
48: "sandwich",
49: "orange",
50: "broccoli",
51: "carrot",
52: "hot dog",
53: "pizza",
54: "donut",
55: "cake",
56: "chair",
57: "couch",
58: "potted plant",
59: "bed",
60: "dining table",
61: "toilet",
62: "tv",
63: "laptop",
64: "mouse",
65: "remote",
66: "keyboard",
67: "cell phone",
68: "microwave",
69: "oven",
70: "toaster",
71: "sink",
72: "refrigerator",
73: "book",
74: "clock",
75: "vase",
76: "scissors",
77: "teddy bear",
78: "hair drier",
79: "toothbrush"
}
"names": names
}
with open(os.path.join(path, "dataset.yaml"), 'w') as f:
yaml.dump(data, f)
def process_directories(dataset_root_path:str):
def process_directories(dataset_root_path:str, names:list[str]):
"""학습을 위한 디렉토리 생성"""
make_dir(dataset_root_path, init=False)
make_dir(os.path.join(dataset_root_path, "train"), init=True)
make_dir(os.path.join(dataset_root_path, "val"), init=True)
if os.path.exists(os.path.join(dataset_root_path, "result")):
shutil.rmtree(os.path.join(dataset_root_path, "result"))
make_yml(dataset_root_path)
make_yml(dataset_root_path, names)
def process_image_and_label(data:TrainDataInfo, dataset_root_path:str, child_path:str):
def process_image_and_label(data:TrainDataInfo, dataset_root_path:str, child_path:str, label_map:dict[int, int]|None):
"""이미지 저장 및 레이블 파일 생성"""
# 이미지 저장
@ -139,7 +57,7 @@ def process_image_and_label(data:TrainDataInfo, dataset_root_path:str, child_pat
y1 = shape.points[0][1]
x2 = shape.points[1][0]
y2 = shape.points[1][1]
train_label.append(str(shape.group_id)) # label Id
train_label.append(str(label_map[shape.group_id]) if label_map else str(shape.group_id)) # label Id
train_label.append(str((x1 + x2) / 2 / label.imageWidth)) # 중심 x 좌표
train_label.append(str((y1 + y2) / 2 / label.imageHeight)) # 중심 y 좌표
train_label.append(str((x2 - x1) / label.imageWidth)) # 너비