Template-Guided Vision for Sparse Industrial Defects
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Keywords

industrial defect detection
template-guided vision
YOLO
attention mechanisms
distribution shift
selective prediction

Abstract

What evidence is needed to determine how a defect detector can combine task-specific templates and attention without becoming brittle when paper texture, lighting, and defect prevalence change? This review answers by treating template-guided visual inspection as a property of a sociotechnical workflow rather than a feature that can be read from average accuracy. The focal setting is high-throughput paper manufacturing with rare, heterogeneous surface defects, where a detector can score well on curated images yet miss rare defects or create costly false stops after a camera or material change. Evidence from the assigned publications is synthesized with foundational studies of calibration, distribution shift, causal structure, and responsible deployment. Four requirements follow: preserve the lineage of production images, templates, defect annotations, camera metadata, process settings, and inspection outcomes; measure stability across relevant perturbations; connect confidence to a specific action; and maintain a route for human challenge and correction. The framework distinguishes descriptive performance from decision utility and separates uncertainty about the world from uncertainty created by the model and its evaluator. It also shows why faster inference or richer reasoning is valuable only when it improves a defined decision under a transparent resource budget. The article is a literature review and research agenda, not a report of a newly completed trial.

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