CytoCrowd: A Multi-Annotator Benchmark Dataset for Cytology Image Analysis

Fuente: arXiv
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Autori principali: Si, Yonghao, Zeng, Xingyuan, Chen, Zhao, Zheng, Libin, Cao, Caleb Chen, Chen, Lei, Yin, Jian
Natura: Preprint
Pubblicazione: 2026
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author Si, Yonghao
Zeng, Xingyuan
Chen, Zhao
Zheng, Libin
Cao, Caleb Chen
Chen, Lei
Yin, Jian
author_facet Si, Yonghao
Zeng, Xingyuan
Chen, Zhao
Zheng, Libin
Cao, Caleb Chen
Chen, Lei
Yin, Jian
contents High-quality annotated datasets are crucial for advancing machine learning in medical image analysis. However, a critical gap exists: most datasets either offer a single, clean ground truth, which hides real-world expert disagreement, or they provide multiple annotations without a separate gold standard for objective evaluation. To bridge this gap, we introduce CytoCrowd, a new public benchmark for cytology analysis. The dataset features 446 high-resolution images, each with two key components: (1) raw, conflicting annotations from four independent pathologists, and (2) a separate, high-quality gold-standard ground truth established by a senior expert. This dual structure makes CytoCrowd a versatile resource. It serves as a benchmark for standard computer vision tasks, such as object detection and classification, using the ground truth. Simultaneously, it provides a realistic testbed for evaluating annotation aggregation algorithms that must resolve expert disagreements. We provide comprehensive baseline results for both tasks. Our experiments demonstrate the challenges presented by CytoCrowd and establish its value as a resource for developing the next generation of models for medical image analysis.
format Preprint
id arxiv_https___arxiv_org_abs_2602_06674
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle CytoCrowd: A Multi-Annotator Benchmark Dataset for Cytology Image Analysis
Si, Yonghao
Zeng, Xingyuan
Chen, Zhao
Zheng, Libin
Cao, Caleb Chen
Chen, Lei
Yin, Jian
Computer Vision and Pattern Recognition
Human-Computer Interaction
Machine Learning
High-quality annotated datasets are crucial for advancing machine learning in medical image analysis. However, a critical gap exists: most datasets either offer a single, clean ground truth, which hides real-world expert disagreement, or they provide multiple annotations without a separate gold standard for objective evaluation. To bridge this gap, we introduce CytoCrowd, a new public benchmark for cytology analysis. The dataset features 446 high-resolution images, each with two key components: (1) raw, conflicting annotations from four independent pathologists, and (2) a separate, high-quality gold-standard ground truth established by a senior expert. This dual structure makes CytoCrowd a versatile resource. It serves as a benchmark for standard computer vision tasks, such as object detection and classification, using the ground truth. Simultaneously, it provides a realistic testbed for evaluating annotation aggregation algorithms that must resolve expert disagreements. We provide comprehensive baseline results for both tasks. Our experiments demonstrate the challenges presented by CytoCrowd and establish its value as a resource for developing the next generation of models for medical image analysis.
title CytoCrowd: A Multi-Annotator Benchmark Dataset for Cytology Image Analysis
topic Computer Vision and Pattern Recognition
Human-Computer Interaction
Machine Learning
url https://arxiv.org/abs/2602.06674