import json from pathlib import Path import torch import argparse import numpy as np from tqdm import tqdm import onnxruntime from utils import check_det_dataset, yaml_load, IterableSimpleNamespace, build_dataloader, post_process, xyxy2xywh, LOGGER, \ DetMetrics, increment_path, get_cfg, smart_inference_mode, box_iou, TQDM_BAR_FORMAT, scale_boxes, non_max_suppression, xywh2xyxy # Default configuration DEFAULT_CFG_DICT = yaml_load("./default.yaml") for k, v in DEFAULT_CFG_DICT.items(): if isinstance(v, str) and v.lower() == 'none': DEFAULT_CFG_DICT[k] = None DEFAULT_CFG_KEYS = DEFAULT_CFG_DICT.keys() DEFAULT_CFG = IterableSimpleNamespace(**DEFAULT_CFG_DICT) import sys import pathlib CURRENT_DIR = pathlib.Path(__file__).parent sys.path.append(str(CURRENT_DIR)) class DetectionValidator: def __init__(self, dataloader=None, save_dir=None, pbar=None, logger=None, args=None): self.dataloader = dataloader self.pbar = pbar self.logger = LOGGER self.args = args self.model = None self.data = None self.device = None self.batch_i = None self.speed = None self.jdict = None self.args.task = 'detect' project = Path("./runs") / self.args.task self.save_dir = save_dir or increment_path(Path(project), exist_ok=True) (self.save_dir / 'labels').mkdir(parents=True, exist_ok=True) self.args.conf = 0.001 # default conf=0.001 self.is_coco = False self.class_map = None self.metrics = DetMetrics(save_dir=self.save_dir) self.iouv = torch.linspace(0.5, 0.95, 10) # iou vector for mAP@0.5:0.95 self.niou = self.iouv.numel() @smart_inference_mode() def __call__(self, trainer=None, model=None): """ Supports validation of a pre-trained model if passed or a model being trained if trainer is passed (trainer gets priority). """ self.device = torch.device('cpu') onnx_weight = self.args.onnx_weight if isinstance(onnx_weight, list): onnx_weight = onnx_weight[0] if self.args.ipu: providers = ["VitisAIExecutionProvider"] provider_options = [{"config_file": self.args.provider_config}] onnx_model = onnxruntime.InferenceSession(onnx_weight, providers=providers, provider_options=provider_options) else: onnx_model = onnxruntime.InferenceSession(onnx_weight) self.data = check_det_dataset(self.args.data) self.args.rect = False self.dataloader = self.dataloader or self.get_dataloader(self.data.get("val") or self.data.get("test"), self.args.batch) total = len(self.dataloader) n_batches = len(self.dataloader) desc = self.get_desc() bar = tqdm(self.dataloader, desc, total, bar_format=TQDM_BAR_FORMAT) self.init_metrics() self.jdict = [] # empty before each val for batch_i, batch in enumerate(bar): self.batch_i = batch_i # pre-process batch = self.preprocess(batch) # inference # outputs = onnx_model.run(None, {onnx_model.get_inputs()[0].name: batch["img"].cpu().numpy()}) outputs = onnx_model.run(None, {onnx_model.get_inputs()[0].name: batch["img"].permute(0, 2, 3, 1).cpu().numpy()}) # outputs = [torch.tensor(item).to(self.device) for item in outputs] outputs = [torch.tensor(item).permute(0, 3, 1, 2).to(self.device) for item in outputs] preds = post_process(outputs) # pre-process predictions preds = self.postprocess(preds) self.update_metrics(preds, batch) stats = self.get_stats() self.print_results() if self.args.save_json and self.jdict: with open(str(self.save_dir / "predictions.json"), 'w') as f: self.logger.info(f"Saving {f.name}...") json.dump(self.jdict, f) # flatten and save stats = self.eval_json(stats) # update stats return stats def get_dataloader(self, dataset_path, batch_size): # calculate stride - check if model is initialized return build_dataloader(self.args, batch_size, img_path=dataset_path, stride=32, names=self.data['names'], mode="val")[0] def get_desc(self): return ('%22s' + '%11s' * 6) % ('Class', 'Images', 'Instances', 'Box(P', "R", "mAP50", "mAP50-95)") def init_metrics(self): self.is_coco = True self.class_map = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 70, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 84, 85, 86, 87, 88, 89, 90] self.args.save_json = True self.nc = 80 classnames = ['person', 'bicycle', 'car', 'motorcycle', 'airplane', 'bus', 'train', 'truck', 'boat', 'traffic light', 'fire hydrant', 'stop sign', 'parking meter', 'bench', 'bird', 'cat', 'dog', 'horse', 'sheep', 'cow', 'elephant', 'bear', 'zebra', 'giraffe', 'backpack', 'umbrella', 'handbag', 'tie', 'suitcase', 'frisbee', 'skis', 'snowboard', 'sports ball', 'kite', 'baseball bat', 'baseball glove', 'skateboard', 'surfboard', 'tennis racket', 'bottle', 'wine glass', 'cup', 'fork', 'knife', 'spoon', 'bowl', 'banana', 'apple', 'sandwich', 'orange', 'broccoli', 'carrot', 'hot dog', 'pizza', 'donut', 'cake', 'chair', 'couch', 'potted plant', 'bed', 'dining table', 'toilet', 'tv', 'laptop', 'mouse', 'remote', 'keyboard', 'cell phone', 'microwave', 'oven', 'toaster', 'sink', 'refrigerator', 'book', 'clock', 'vase', 'scissors', 'teddy bear', 'hair drier', 'toothbrush'] self.names = {k: classnames[k] for k in range(80)} self.metrics.names = self.names self.metrics.plot = True self.seen = 0 self.jdict = [] self.stats = [] def preprocess(self, batch): batch["img"] = batch["img"].to(self.device, non_blocking=True) batch["img"] = batch["img"].float() / 255 for k in ["batch_idx", "cls", "bboxes"]: batch[k] = batch[k].to(self.device) nb = len(batch["img"]) self.lb = [torch.cat([batch["cls"], batch["bboxes"]], dim=-1)[batch["batch_idx"] == i] for i in range(nb)] if self.args.save_hybrid else [] # for autolabelling return batch def postprocess(self, preds): preds = non_max_suppression(preds, self.args.conf, self.args.iou, labels=self.lb, multi_label=True, agnostic=self.args.single_cls, max_det=self.args.max_det) return preds def update_metrics(self, preds, batch): # Metrics for si, pred in enumerate(preds): idx = batch["batch_idx"] == si cls = batch["cls"][idx] bbox = batch["bboxes"][idx] nl, npr = cls.shape[0], pred.shape[0] # number of labels, predictions shape = batch["ori_shape"][si] correct_bboxes = torch.zeros(npr, self.niou, dtype=torch.bool, device=self.device) # init self.seen += 1 if npr == 0: if nl: self.stats.append((correct_bboxes, *torch.zeros((2, 0), device=self.device), cls.squeeze(-1))) continue # Predictions if self.args.single_cls: pred[:, 5] = 0 predn = pred.clone() scale_boxes(batch["img"][si].shape[1:], predn[:, :4], shape, ratio_pad=batch["ratio_pad"][si]) # native-space pred # Evaluate if nl: height, width = batch["img"].shape[2:] tbox = xywh2xyxy(bbox) * torch.tensor( (width, height, width, height), device=self.device) # target boxes scale_boxes(batch["img"][si].shape[1:], tbox, shape, ratio_pad=batch["ratio_pad"][si]) # native-space labels labelsn = torch.cat((cls, tbox), 1) # native-space labels correct_bboxes = self._process_batch(predn, labelsn) self.stats.append((correct_bboxes, pred[:, 4], pred[:, 5], cls.squeeze(-1))) # (conf, pcls, tcls) # Save if self.args.save_json: self.pred_to_json(predn, batch["im_file"][si]) def _process_batch(self, detections, labels): """ Return correct prediction matrix Arguments: detections (array[N, 6]), x1, y1, x2, y2, conf, class labels (array[M, 5]), class, x1, y1, x2, y2 Returns: correct (array[N, 10]), for 10 IoU levels """ iou = box_iou(labels[:, 1:], detections[:, :4]) correct = np.zeros((detections.shape[0], self.iouv.shape[0])).astype(bool) correct_class = labels[:, 0:1] == detections[:, 5] for i in range(len(self.iouv)): x = torch.where((iou >= self.iouv[i]) & correct_class) # IoU > threshold and classes match if x[0].shape[0]: matches = torch.cat((torch.stack(x, 1), iou[x[0], x[1]][:, None]), 1).cpu().numpy() # [label, detect, iou] if x[0].shape[0] > 1: matches = matches[matches[:, 2].argsort()[::-1]] matches = matches[np.unique(matches[:, 1], return_index=True)[1]] # matches = matches[matches[:, 2].argsort()[::-1]] matches = matches[np.unique(matches[:, 0], return_index=True)[1]] correct[matches[:, 1].astype(int), i] = True return torch.tensor(correct, dtype=torch.bool, device=detections.device) def pred_to_json(self, predn, filename): stem = Path(filename).stem image_id = int(stem) if stem.isnumeric() else stem box = xyxy2xywh(predn[:, :4]) # xywh box[:, :2] -= box[:, 2:] / 2 # xy center to top-left corner for p, b in zip(predn.tolist(), box.tolist()): self.jdict.append({ 'image_id': image_id, 'category_id': self.class_map[int(p[5])], 'bbox': [round(x, 3) for x in b], 'score': round(p[4], 5)}) def get_stats(self): stats = [torch.cat(x, 0).cpu().numpy() for x in zip(*self.stats)] # to numpy if len(stats) and stats[0].any(): self.metrics.process(*stats) self.nt_per_class = np.bincount(stats[-1].astype(int), minlength=self.nc) # number of targets per class return self.metrics.results_dict def print_results(self): pf = '%22s' + '%11i' * 2 + '%11.3g' * len(self.metrics.keys) # print format self.logger.info(pf % ("all", self.seen, self.nt_per_class.sum(), *self.metrics.mean_results())) if self.nt_per_class.sum() == 0: self.logger.warning( f'WARNING ⚠️ no labels found in {self.args.task} set, can not compute metrics without labels') # Print results per class if self.args.verbose and self.nc > 1 and len(self.stats): for i, c in enumerate(self.metrics.ap_class_index): self.logger.info(pf % (self.names[c], self.seen, self.nt_per_class[c], *self.metrics.class_result(i))) def eval_json(self, stats): if self.args.save_json and self.is_coco and len(self.jdict): anno_json = Path(self.data['path']) / 'annotations/instances_val2017.json' # annotations pred_json = self.save_dir / "predictions.json" # predictions self.logger.info(f'\nEvaluating pycocotools mAP using {pred_json} and {anno_json}...') try: # https://github.com/cocodataset/cocoapi/blob/master/PythonAPI/pycocoEvalDemo.ipynb from pycocotools.coco import COCO # noqa from pycocotools.cocoeval import COCOeval # noqa # for x in anno_json, pred_json: # assert x.is_file(), f"{x} file not found" anno = COCO(str(anno_json)) # init annotations api pred = anno.loadRes(str(pred_json)) # init predictions api (must pass string, not Path) eval = COCOeval(anno, pred, 'bbox') if self.is_coco: eval.params.imgIds = [int(Path(x).stem) for x in self.dataloader.dataset.im_files] # images to eval eval.evaluate() eval.accumulate() eval.summarize() stats[self.metrics.keys[-1]], stats[self.metrics.keys[-2]] = eval.stats[:2] # update mAP50-95 and mAP50 except Exception as e: self.logger.warning(f'pycocotools unable to run: {e}') return stats def parse_opt(): parser = argparse.ArgumentParser() parser.add_argument('--ipu', action='store_true', help='flag for ryzen ai') parser.add_argument('--provider_config', default='', type=str, help='provider config for ryzen ai') parser.add_argument("-m", "--onnx_model", default="./yolov8m.onnx", type=str, help='onnx_weight') opt = parser.parse_args() return opt if __name__ == "__main__": opt = parse_opt() args = get_cfg(DEFAULT_CFG) args.ipu = opt.ipu args.onnx_weight = opt.onnx_model args.provider_config = opt.provider_config validator = DetectionValidator(args=args) validator()