metric: COCO num_classes: 15 TrainDataset: !COCODataSet image_dir: train_images_500_025 anno_path: train_500_025.json dataset_dir: dataset/dota_sliced data_fields: ['image', 'gt_bbox', 'gt_class', 'is_crowd'] EvalDataset: !COCODataSet image_dir: val_images_500_025 anno_path: val_500_025.json dataset_dir: dataset/dota_sliced TestDataset: !ImageFolder anno_path: val_500_025.json dataset_dir: dataset/dota_sliced