Datasets:
Delete Micro-OD.py
Browse files- Micro-OD.py +0 -120
Micro-OD.py
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"""Micro-OD: A few-shot microscopy object detection benchmark."""
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import json
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import os
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import datasets
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_DESCRIPTION = """\
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Micro-OD is a few-shot microscopy object detection benchmark spanning four
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biological imaging domains: BBBC (malaria parasite detection), BCCD (blood
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cell counting), LIVECell (RatC6 live-cell imaging), and NIH-3T3 (mouse
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fibroblast imaging).
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Two splits are provided:
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- example: 10 images per sub-dataset (40 total) — the few-shot support set.
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- test: 53 images per sub-dataset (212 total) — the evaluation query set.
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"""
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# Sorted alphabetically; used as ClassLabel names.
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ALL_CLASSES = [
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"Gametocyte Cells",
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"Platelets",
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"Polygonal Cells",
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"Red Blood Cells",
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"Ring Cells",
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"Round Cells",
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"Schizont Cells",
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"Spindle Cells",
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"Trophozoite Cells",
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"White Blood Cells",
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]
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SUBDATASETS = ["BBBC", "BCCD", "LIVECell", "NIH-3T3"]
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class MicroOD(datasets.GeneratorBasedBuilder):
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"""Micro-OD dataset loader."""
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VERSION = datasets.Version("1.0.0")
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def _info(self):
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return datasets.DatasetInfo(
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description=_DESCRIPTION,
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features=datasets.Features(
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{
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"image": datasets.Image(),
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"image_id": datasets.Value("string"),
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"subdataset": datasets.Value("string"),
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"objects": datasets.Sequence(
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feature={
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# COCO format: [x_min, y_min, width, height]
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"bbox": datasets.Sequence(
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datasets.Value("float32"), length=4
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),
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"label": datasets.ClassLabel(names=ALL_CLASSES),
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"category": datasets.Value("string"),
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}
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),
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}
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),
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)
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def _split_generators(self, dl_manager):
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data_dir = os.path.dirname(os.path.abspath(__file__))
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return [
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datasets.SplitGenerator(
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name=datasets.splits.NamedSplit("example"),
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gen_kwargs={"split_path": os.path.join(data_dir, "example")},
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),
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datasets.SplitGenerator(
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name=datasets.Split.TEST,
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gen_kwargs={"split_path": os.path.join(data_dir, "test")},
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),
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]
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def _generate_examples(self, split_path):
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idx = 0
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for subdataset in SUBDATASETS:
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annotation_path = os.path.join(
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split_path, subdataset, "annotation.jsonl"
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)
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image_base = os.path.join(split_path, subdataset)
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with open(annotation_path, encoding="utf-8") as f:
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for line in f:
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line = line.strip()
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if not line:
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continue
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entry = json.loads(line)
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image_path = os.path.join(image_base, entry["image_path"])
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bboxes, labels, categories = [], [], []
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for category, boxes in entry["bbox"].items():
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for box in boxes:
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x_min, y_min = box[0]
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x_max, y_max = box[1]
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# Convert [[x_min,y_min],[x_max,y_max]] → COCO [x,y,w,h]
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bboxes.append(
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[
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float(x_min),
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float(y_min),
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float(x_max - x_min),
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float(y_max - y_min),
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]
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)
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labels.append(ALL_CLASSES.index(category))
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categories.append(category)
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yield idx, {
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"image": image_path,
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"image_id": f"{subdataset}/{entry['image_path']}",
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"subdataset": subdataset,
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"objects": {
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"bbox": bboxes,
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"label": labels,
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"category": categories,
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},
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}
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idx += 1
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