Institution profile

Leibniz-Institut für Wissensmedien

Academic institutioneurope · de
Official website
Research library2linked papers
Opportunities0open roles
Selected work

Representative Papers

Transformation Behavior of Images in Latent Space

Jun 23, 2026

This study systematically investigates the impact of classical image transformations on the latent representations of histopathology image encoders, evaluating their degree of invariance to label-irrelevant augmentations. By measuring embedding-space distances among original images, standardly augmented variants, and randomly unrelated images, we conduct a comparative analysis using both general-purpose and pathology-specific encoders—namely those from Lunit, Bioptimus, and Meta—on colorectal H&E-stained whole-slide images and TCGA datasets. Our work quantitatively reveals, for the first time, that current encoders exhibit only partial invariance to common augmentation strategies, with notable differences between general and domain-specific models. Crucially, we find that post-transformation embeddings remain significantly closer to their originals than to random samples, thereby elucidating a key mechanism through which data augmentation enhances model performance.

0 citationsRead paper
Recent publications

Latest Papers

Transformation Behavior of Images in Latent Space

Jun 23, 2026

This study systematically investigates the impact of classical image transformations on the latent representations of histopathology image encoders, evaluating their degree of invariance to label-irrelevant augmentations. By measuring embedding-space distances among original images, standardly augmented variants, and randomly unrelated images, we conduct a comparative analysis using both general-purpose and pathology-specific encoders—namely those from Lunit, Bioptimus, and Meta—on colorectal H&E-stained whole-slide images and TCGA datasets. Our work quantitatively reveals, for the first time, that current encoders exhibit only partial invariance to common augmentation strategies, with notable differences between general and domain-specific models. Crucially, we find that post-transformation embeddings remain significantly closer to their originals than to random samples, thereby elucidating a key mechanism through which data augmentation enhances model performance.

0 citationsRead paper