Search Results for author: Jianan Fan

Found 11 papers, 8 papers with code

MIRROR: Multi-Modal Pathological Self-Supervised Representation Learning via Modality Alignment and Retention

1 code implementation1 Mar 2025 Tianyi Wang, Jianan Fan, Dingxin Zhang, Dongnan Liu, Yong Xia, Heng Huang, Weidong Cai

MIRROR employs dedicated encoders to extract comprehensive features for each modality, which is further complemented by a modality alignment module to achieve seamless integration between phenotype patterns and molecular profiles.

Clustering Representation Learning +2

Medical Image Registration Meets Vision Foundation Model: Prototype Learning and Contour Awareness

1 code implementation17 Feb 2025 Hao Xu, Tengfei Xue, Jianan Fan, Dongnan Liu, Yuqian Chen, Fan Zhang, Carl-Fredrik Westin, Ron Kikinis, Lauren J. O'Donnell, Weidong Cai

The framework includes: (1) Explicit anatomical information injection, where SAM-generated segmentation masks are used as auxiliary inputs throughout training and testing to ensure the consistency of anatomical information; (2) Prototype learning, which leverages segmentation masks to extract prototype features and aligns prototypes to optimize semantic correspondences between images; and (3) Contour-aware loss, a contour-aware loss is designed that leverages the edges of segmentation masks to improve the model's performance in fine-grained deformation fields.

Image Registration Medical Image Analysis +2

Cell as Point: One-Stage Framework for Efficient Cell Tracking

no code implementations22 Nov 2024 Yaxuan Song, Jianan Fan, Heng Huang, Mei Chen, Weidong Cai

To solve these challenges, CAP introduces two key innovations: (1) adaptive event-guided (AEG) sampling, which prioritizes cell division events to mitigate the occurrence imbalance of cell events, and (2) the rolling-as-window (RAW) inference strategy, which ensures continuous and stable tracking of newly emerging cells over extended sequences.

Cell Tracking Diagnostic +1

AMNCutter: Affinity-Attention-Guided Multi-View Normalized Cutter for Unsupervised Surgical Instrument Segmentation

1 code implementation6 Nov 2024 Mingyu Sheng, Jianan Fan, Dongnan Liu, Ron Kikinis, Weidong Cai

Recent unsupervised surgical instrument segmentation (USIS) methods primarily rely on pseudo-labels derived from low-level features such as color and optical flow, but these methods show limited effectiveness and generalizability in complex and unseen endoscopic scenarios.

Optical Flow Estimation

Revisiting Surgical Instrument Segmentation Without Human Intervention: A Graph Partitioning View

1 code implementation27 Aug 2024 Mingyu Sheng, Jianan Fan, Dongnan Liu, Ron Kikinis, Weidong Cai

In this work, we propose an unsupervised method by reframing the video frame segmentation as a graph partitioning problem and regarding image pixels as graph nodes, which is significantly different from the previous efforts.

graph partitioning

Multi-source-free Domain Adaptation via Uncertainty-aware Adaptive Distillation

1 code implementation9 Feb 2024 Yaxuan Song, Jianan Fan, Dongnan Liu, Weidong Cai

Source-free domain adaptation (SFDA) alleviates the domain discrepancy among data obtained from domains without accessing the data for the awareness of data privacy.

Knowledge Distillation Source-Free Domain Adaptation +1

Learning to Generalize over Subpartitions for Heterogeneity-aware Domain Adaptive Nuclei Segmentation

no code implementations17 Jan 2024 Jianan Fan, Dongnan Liu, Hang Chang, Weidong Cai

Annotation scarcity and cross-modality/stain data distribution shifts are two major obstacles hindering the application of deep learning models for nuclei analysis, which holds a broad spectrum of potential applications in digital pathology.

Disentanglement Unsupervised Domain Adaptation

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