CPLIP: Zero-Shot Learning for Histopathology with Comprehensive Vision-Language Alignment
This addresses the challenge of applying vision-language models to histopathology for medical professionals, but it is incremental as it builds on existing techniques with domain-specific enhancements.
The paper tackles the problem of aligning images and text in histopathology for tasks like classification and segmentation without ground truth annotations, resulting in CPLIP, which shows notable improvements in zero-shot learning scenarios and outperforms existing methods in interpretability and robustness.
This paper proposes Comprehensive Pathology Language Image Pre-training (CPLIP), a new unsupervised technique designed to enhance the alignment of images and text in histopathology for tasks such as classification and segmentation. This methodology enriches vision-language models by leveraging extensive data without needing ground truth annotations. CPLIP involves constructing a pathology-specific dictionary, generating textual descriptions for images using language models, and retrieving relevant images for each text snippet via a pre-trained model. The model is then fine-tuned using a many-to-many contrastive learning method to align complex interrelated concepts across both modalities. Evaluated across multiple histopathology tasks, CPLIP shows notable improvements in zero-shot learning scenarios, outperforming existing methods in both interpretability and robustness and setting a higher benchmark for the application of vision-language models in the field. To encourage further research and replication, the code for CPLIP is available on GitHub at https://cplip.github.io/