Generalization of Self-Supervised Vision Transformers for Protein Localization Across Microscopy Domains

Fuente: arXiv
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Autori principali: Isselmann, Ben, Göksu, Dilara, Weinmann, Andreas
Natura: Preprint
Pubblicazione: 2026
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author Isselmann, Ben
Göksu, Dilara
Weinmann, Andreas
author_facet Isselmann, Ben
Göksu, Dilara
Weinmann, Andreas
contents Task-specific microscopy datasets are often too small to train deep learning models that learn robust feature representations. Self-supervised learning (SSL) can mitigate this by pretraining on large unlabeled datasets, but it remains unclear how well such representations transfer across microscopy domains with different staining protocols and channel configurations. We investigate the cross-domain transferability of DINO-pretrained Vision Transformers for protein localization on the OpenCell dataset. We generate image embeddings using three DINO backbones pretrained on ImageNet-1k, the Human Protein Atlas (HPA), and OpenCell, and evaluate them by training a supervised classification head on OpenCell labels. All pretrained models transfer well, with the microscopy-specific HPA-pretrained model achieving the best performance (mean macro $F_1$-score = 0.8221 $\pm$ 0.0062), slightly outperforming a DINO model trained directly on OpenCell (0.8057 $\pm$ 0.0090). These results highlight the value of large-scale pretraining and indicate that domain-relevant SSL representations can generalize effectively to related but distinct microscopy datasets, enabling strong downstream performance even when task-specific labeled data are limited.
format Preprint
id arxiv_https___arxiv_org_abs_2602_05527
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Generalization of Self-Supervised Vision Transformers for Protein Localization Across Microscopy Domains
Isselmann, Ben
Göksu, Dilara
Weinmann, Andreas
Computer Vision and Pattern Recognition
Task-specific microscopy datasets are often too small to train deep learning models that learn robust feature representations. Self-supervised learning (SSL) can mitigate this by pretraining on large unlabeled datasets, but it remains unclear how well such representations transfer across microscopy domains with different staining protocols and channel configurations. We investigate the cross-domain transferability of DINO-pretrained Vision Transformers for protein localization on the OpenCell dataset. We generate image embeddings using three DINO backbones pretrained on ImageNet-1k, the Human Protein Atlas (HPA), and OpenCell, and evaluate them by training a supervised classification head on OpenCell labels. All pretrained models transfer well, with the microscopy-specific HPA-pretrained model achieving the best performance (mean macro $F_1$-score = 0.8221 $\pm$ 0.0062), slightly outperforming a DINO model trained directly on OpenCell (0.8057 $\pm$ 0.0090). These results highlight the value of large-scale pretraining and indicate that domain-relevant SSL representations can generalize effectively to related but distinct microscopy datasets, enabling strong downstream performance even when task-specific labeled data are limited.
title Generalization of Self-Supervised Vision Transformers for Protein Localization Across Microscopy Domains
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2602.05527