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Updated: Sep 3, 2025

Volume Segmentation and Analysis of Biological Materials Using SuRVoS Super-region Volume Segmentation Workbench
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SemiCurv: Semi-Supervised Curvilinear Structure Segmentation.

Xun Xu, Manh Cuong Nguyen, Yasin Yazici

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    |July 27, 2022
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    This summary is machine-generated.

    SemiCurv, a semi-supervised learning framework, effectively segments curvilinear structures using readily available unlabeled data. This approach significantly reduces the need for expensive labeled data while maintaining high performance.

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    Area of Science:

    • Computer Vision
    • Machine Learning
    • Medical Image Analysis

    Background:

    • Curvilinear structure segmentation research has primarily focused on network architecture and loss functions.
    • The significant cost and labor involved in acquiring labeled data for segmentation tasks have been largely overlooked.
    • Unlabeled data is often abundant and accessible, presenting an opportunity for data-efficient learning.

    Purpose of the Study:

    • To introduce SemiCurv, a novel semi-supervised learning (SSL) framework for curvilinear structure segmentation.
    • To leverage readily available unlabeled data to mitigate the expensive labeling burden in segmentation tasks.
    • To address key challenges in applying SSL to curvilinear segmentation, particularly data augmentation and class imbalance.

    Main Methods:

    • Developed a semi-supervised learning framework (SemiCurv) for curvilinear structure segmentation.
    • Introduced a novel geometric transformation for strong data augmentation and used a differentiable inverse transformation for prediction alignment to compute pixel-wise consistency.
    • Proposed a N-pair consistency loss function to prevent collapsed predictions, especially in cases of severe class imbalance.

    Main Results:

    • SemiCurv effectively utilizes unlabeled data, significantly reducing the requirement for labeled samples.
    • With only 5% labeled data, the framework achieved approximately 95% of the performance of fully supervised methods.
    • Evaluated on six diverse curvilinear segmentation datasets, demonstrating robust performance across different data types.

    Conclusions:

    • SemiCurv offers a viable and efficient solution for curvilinear structure segmentation by effectively incorporating unlabeled data.
    • The proposed methods for data augmentation and loss functions successfully address challenges in semi-supervised segmentation.
    • This framework has the potential to substantially decrease the cost and effort associated with creating labeled datasets for segmentation tasks.