arXiv Computer Vision

Morphology-Aware Ambiguity Learning for Wafer Defect Decision Support

The paper introduces a morphology‑aware ambiguity learning framework for wafer defect decision support. It enables three diagnostic actions—automatic single‑class diagnosis, assisted diagnosis with two plausible defect classes, and full review—by constructing a class‑level ambiguity matrix from wafer map characteristics. Experiments on the WM‑811K dataset demonstrate that the framework outperforms traditional methods, offering meaningful two‑class alternatives and reserving full review for truly ambiguous cases, with consistent performance across different backbone architectures.

arXiv Computer Vision
Sep 3

MAOL: Morphology-Aware Ordinal Learning for Fine-Grained Industrial Defect Severity Grading

MAOL (Morphology-Aware Ordinal Learning) is a new framework for fine-grained industrial defect severity grading. It treats severity grading as an instance-level ordinal learning task, uses explicit morphological features to improve representation, introduces class-conditional adaptive ordinal thresholds to capture defect-specific grading boundaries, and applies prediction-aware training with localization perturbation to handle noisy predicted instances. Experiments show MAOL outperforms rule-based methods, nominal classification models, and existing ordinal baselines, especially in predicted-instance settings, and it ranked third in the IDA 2026 Challenge on Fine-Grained Severity Grading for High-Precision Manufacturing.

By Zhaoyang Wang, Haiyong Chen, Binyi Su, Kun Liu, Kun Wang, Xianen Zhou, Atik Shahariar
arXiv Computer Vision
2d ago

Robust Online Aero-Engine Blade Defect Detection via Dual-Alignment Test-Time Adaptation

The paper introduces the Aero-engine Blade Defect Detector (ABDD), an online adaptive detection framework that uses test-time adaptation to handle domain shifts in aero-engine blade inspection. ABDD employs a Dual-Alignment Strategy combining feature-statistics alignment with pseudo-box alignment to adapt both global visual style and local defect morphology, and incorporates an Uncertainty-aware Box Filtering mechanism to mitigate errors from noisy pseudo labels. A lightweight Sparse Dilated Mona module enables efficient parameter tuning while preventing source-domain forgetting, and the method is validated on CD-AeBD and HD-AeBD datasets, showing improved robustness and practical applicability on an industrial inspection platform.

By Zhaoyang Wang, Haiyong Chen, Dongying Li, Yining Wang, Huapeng Wu, Xinwei Lv, Atik Shahariar
arXiv Computer Vision
Aug 25

Quality Inspection of Printed Circuit Board Pin Insertion via Semantic Segmentation and Board-Level Feature Extraction

The paper introduces an automated defect detection system for printed circuit board (PCB) pin insertion, combining U‑Net semantic segmentation with contour‑based feature extraction and logistic regression for board‑level pass/fail classification. Segmentation masks generate contour representations of individual pins, from which features such as average contour size are extracted to train the classifier. Evaluated on an industrial dataset and a public PCB pin‑inspection dataset, the method achieved ROC‑AUC scores of 0.990 and 1.000, outperforming PatchCore and instance‑segmentation baselines.

By Nils Rabeneck, Andr\'e Kiunke, Nicole Hoess, Wolfgang Mauerer
arXiv Computer Vision
Sep 3

FuDU: A Fuzzy Dual-dimensional Uncertainty Framework for Streaming Active Learning in Industrial Defect Detection

The paper introduces FuDU, a streaming active learning framework that enhances real‑time industrial defect detection by quantifying uncertainty at both image and box levels. It employs a Prototype-based Global Uncertainty Quantification module to assess image‑level uncertainty and a Dual‑entropy defect Uncertainty Evaluator for box‑level uncertainty. By fusing these uncertainties through fuzzy inference, FuDU enables expert‑knowledge‑driven adaptive sampling, improving reliability in tasks such as nuclear fuel rod defect detection.

By Zhaoyang Wang, Haiyong Chen, Binyi Su, Xinwei Lyu
arXiv AI
Sep 1

SePArate: Segmenting Patterns from Defects in Wafer Manufacturing Using Weak Supervision

SePArate is a weakly supervised method for segmenting patterns from defects in semiconductor wafers. It uses only image‑level annotations and follows a three‑phase training process: encoder pretraining, knowledge transfer for spatial cues, and training on synthetic mixed‑defect data. Experiments show that SePArate outperforms baseline approaches in pixel‑level defect segmentation.

By Dain Kwon, Changmin Shin, Sunjong Park, Kanghyun Choi, Hyeyoon Lee, Jaewon Jang, Minseok Choi, Jinho Lee
arXiv Computer Vision
Sep 4

ISP-AD: A Large-Scale Real-World Dataset for Advancing Industrial Anomaly Detection with Synthetic and Real Defects

The paper introduces ISP-AD, the largest publicly available industrial anomaly detection dataset, featuring both synthetic and real defects from a factory floor. It focuses on challenging, small, weakly contrasted surface defects within highly variable structured patterns, addressing the bias of existing datasets toward ideal imaging conditions. Experiments demonstrate that even a small amount of weakly labeled real defects improves model generalization and that synthetic defects can serve as a useful cold‑start baseline for scalable training.

By Paul J. Krassnig, Dieter P. Gruber
arXiv Machine Learning
Aug 11

From Benchmark Performance to Tool Deployment: Human-in-the-Loop Anomaly Detection

arXiv:2608. 07770v1 Announce Type: new Abstract: Automated anomaly detection methods often report strong performance on curated academic benchmarks, but their behavior under real-world industrial conditions is less clear.

By Mike Szklarzewski, CJ George, Gavin Smithson, Christopher Stokes, Dakota Fulp, William M. Jones, Benjamin Wynn, Alexander Ur, Agit Yesiloz, Clint Kallenbach, Mark Swartz, Nathan DeBardeleben, Sharmistha Chakrabarti