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| import sys | |
| from pathlib import Path | |
| import torch | |
| from .. import logger | |
| from ..utils.base_model import BaseModel | |
| example_path = Path(__file__).parent / "../../third_party/example" | |
| sys.path.append(str(example_path)) | |
| # import some modules here | |
| device = torch.device("cuda" if torch.cuda.is_available() else "cpu") | |
| class Example(BaseModel): | |
| # change to your default configs | |
| default_conf = { | |
| "name": "example", | |
| "keypoint_threshold": 0.1, | |
| "max_keypoints": 2000, | |
| "model_name": "model.pth", | |
| } | |
| required_inputs = ["image"] | |
| def _init(self, conf): | |
| # set checkpoints paths if needed | |
| model_path = example_path / "checkpoints" / f'{conf["model_name"]}' | |
| if not model_path.exists(): | |
| logger.info(f"No model found at {model_path}") | |
| # init model | |
| self.net = callable | |
| # self.net = ExampleNet(is_test=True) | |
| state_dict = torch.load(model_path, map_location="cpu") | |
| self.net.load_state_dict(state_dict["model_state"]) | |
| logger.info("Load example model done.") | |
| def _forward(self, data): | |
| # data: dict, keys: 'image' | |
| # image color mode: RGB | |
| # image value range in [0, 1] | |
| image = data["image"] | |
| # B: batch size, N: number of keypoints | |
| # keypoints shape: B x N x 2, type: torch tensor | |
| # scores shape: B x N, type: torch tensor | |
| # descriptors shape: B x 128 x N, type: torch tensor | |
| keypoints, scores, descriptors = self.net(image) | |
| return { | |
| "keypoints": keypoints, | |
| "scores": scores, | |
| "descriptors": descriptors, | |
| } | |