DISYRE: Diffusion-Inspired Synthetic Restoration for improved Unsupervised Anomaly Detection in medical images.
The core message of this paper is to propose a new anomaly detection model that fuses dictionary learning and one-class support vector machines (OC-SVM) to improve unsupervised anomaly detection performance.
Leveraging language models to provide detailed, understandable explanations for anomaly maps generated by unsupervised anomaly detection methods.
A multi-feature reconstruction network using crossed-mask restoration is proposed to effectively detect anomalies in images without any labeled data.
The proposed Masked Diffusion Posterior Sampling (MDPS) method models the problem of normal image reconstruction as multiple diffusion posterior samplings based on a devised masked noisy observation model and a diffusion-based normal image prior under Bayesian framework, enabling robust normal image reconstruction and accurate anomaly localization.
Adapted-MoE addresses the challenges of feature distribution variations within the same category and distribution bias between training and test data by employing a Mixture of Experts model with a routing network and test-time adaptation.
This paper introduces DMDD, a novel knowledge distillation-based method for unsupervised anomaly detection in images, which leverages a decoupled student-teacher network architecture and dual-modeling distillation to achieve state-of-the-art localization performance by effectively capturing both the edges and centers of anomalies.