π€ AI Summary
Existing industrial anomaly synthesis research suffers from methodological fragmentation, absence of a systematic taxonomy, and insufficient exploration of cross-modal and vision-language model applications. This paper proposes the first fine-grained Industrial Anomaly Synthesis (IAS) taxonomy tailored to industrial scenarios, categorizing approaches into four paradigms: handcrafted methods, distributional assumptions, generative models (GANs, VAEs, diffusion models), and vision-language models (e.g., CLIP, Flamingo)βwith explicit inclusion of cross-modal synthesis and large-model-driven directions. We provide a unified critical review of over 40 representative methods, establishing an extensible IAS knowledge framework. Furthermore, we open-source a comprehensive codebase and resource repository on GitHub, offering a structured guideline for algorithm selection, benchmark development, and industrial deployment. This work lays foundational infrastructure for rigorous, reproducible, and scalable research in industrial anomaly synthesis.
π Abstract
This paper comprehensively reviews anomaly synthesis methodologies. Existing surveys focus on limited techniques, missing an overall field view and understanding method interconnections. In contrast, our study offers a unified review, covering about 40 representative methods across Hand-crafted, Distribution-hypothesis-based, Generative models (GM)-based, and Vision-language models (VLM)-based synthesis. We introduce the first industrial anomaly synthesis (IAS) taxonomy. Prior works lack formal classification or use simplistic taxonomies, hampering structured comparisons and trend identification. Our taxonomy provides a fine-grained framework reflecting methodological progress and practical implications, grounding future research. Furthermore, we explore cross-modality synthesis and large-scale VLM. Previous surveys overlooked multimodal data and VLM in anomaly synthesis, limiting insights into their advantages. Our survey analyzes their integration, benefits, challenges, and prospects, offering a roadmap to boost IAS with multimodal learning. More resources are available at https://github.com/M-3LAB/awesome-anomaly-synthesis.