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| import copy | |
| from collections import defaultdict | |
| from pathlib import Path | |
| import torch | |
| import torch.utils.data | |
| import maskrcnn_benchmark.utils.dist as dist | |
| from maskrcnn_benchmark.layers.set_loss import generalized_box_iou | |
| from .modulated_coco import ModulatedDataset | |
| class RefExpDataset(ModulatedDataset): | |
| pass | |
| class RefExpEvaluator(object): | |
| def __init__(self, refexp_gt, iou_types, k=(1, 5, 10), thresh_iou=0.5): | |
| assert isinstance(k, (list, tuple)) | |
| refexp_gt = copy.deepcopy(refexp_gt) | |
| self.refexp_gt = refexp_gt | |
| self.iou_types = iou_types | |
| self.img_ids = self.refexp_gt.imgs.keys() | |
| self.predictions = {} | |
| self.k = k | |
| self.thresh_iou = thresh_iou | |
| def accumulate(self): | |
| pass | |
| def update(self, predictions): | |
| self.predictions.update(predictions) | |
| def synchronize_between_processes(self): | |
| all_predictions = dist.all_gather(self.predictions) | |
| merged_predictions = {} | |
| for p in all_predictions: | |
| merged_predictions.update(p) | |
| self.predictions = merged_predictions | |
| def summarize(self): | |
| if dist.is_main_process(): | |
| dataset2score = { | |
| "refcoco": {k: 0.0 for k in self.k}, | |
| "refcoco+": {k: 0.0 for k in self.k}, | |
| "refcocog": {k: 0.0 for k in self.k}, | |
| } | |
| dataset2count = {"refcoco": 0.0, "refcoco+": 0.0, "refcocog": 0.0} | |
| for image_id in self.img_ids: | |
| ann_ids = self.refexp_gt.getAnnIds(imgIds=image_id) | |
| assert len(ann_ids) == 1 | |
| img_info = self.refexp_gt.loadImgs(image_id)[0] | |
| target = self.refexp_gt.loadAnns(ann_ids[0]) | |
| prediction = self.predictions[image_id] | |
| assert prediction is not None | |
| sorted_scores_boxes = sorted( | |
| zip(prediction["scores"].tolist(), prediction["boxes"].tolist()), reverse=True | |
| ) | |
| sorted_scores, sorted_boxes = zip(*sorted_scores_boxes) | |
| sorted_boxes = torch.cat([torch.as_tensor(x).view(1, 4) for x in sorted_boxes]) | |
| target_bbox = target[0]["bbox"] | |
| converted_bbox = [ | |
| target_bbox[0], | |
| target_bbox[1], | |
| target_bbox[2] + target_bbox[0], | |
| target_bbox[3] + target_bbox[1], | |
| ] | |
| giou = generalized_box_iou(sorted_boxes, torch.as_tensor(converted_bbox).view(-1, 4)) | |
| for k in self.k: | |
| if max(giou[:k]) >= self.thresh_iou: | |
| dataset2score[img_info["dataset_name"]][k] += 1.0 | |
| dataset2count[img_info["dataset_name"]] += 1.0 | |
| for key, value in dataset2score.items(): | |
| for k in self.k: | |
| try: | |
| value[k] /= dataset2count[key] | |
| except: | |
| pass | |
| results = {} | |
| for key, value in dataset2score.items(): | |
| results[key] = sorted([v for k, v in value.items()]) | |
| print(f" Dataset: {key} - Precision @ 1, 5, 10: {results[key]} \n") | |
| return results | |
| return None | |