arXiv Computer Vision

Is In-Domain Training Enough for Fine-Grained Industrial Anomaly Understanding?

The paper investigates whether in‑domain training alone can enable multimodal large language models (MLLMs) to perform fine‑grained industrial anomaly understanding (MM‑IAU). It shows that even specialized MLLMs fail to match human experts on defect localization and detection, and that combining different MLLMs does not eliminate this shortfall. To address this, the authors propose SiGMA, a spatially grounded multi‑agent framework that splits tasks among heterogeneous MLLM agents and a dedicated visual defect expert, achieving 85.2% accuracy on the MMAD benchmark—close to human performance and surpassing the best trained specialist.

arXiv Computer Vision
Sep 25

Industrial Anomaly Detection via Defect-Grounded Reasoning in Visual Latent Space

The paper introduces Anomaly‑LR, a defect‑grounded latent reasoning framework for industrial anomaly detection that builds a global understanding of an image and then refines anomaly‑relevant representations directly in visual latent space. It also presents IAD‑LR‑22K, a new instruction dataset with 22,228 image‑question pairs and detailed annotations. Experiments demonstrate that Anomaly‑LR outperforms comparable‑scale methods on multiple IAD benchmarks without needing external references or tools.

By Jaron Yeh, Yen-Wei Chang, Jiang Liu, Shao-Yuan Lo
arXiv AI
Oct 1

TED:Text-Axis Evidence Decomposition for Prompted Anomaly Localization

The paper introduces TED (Text-Axis Evidence Decomposition), a post‑hoc scoring method that improves anomaly localization in CLIP‑based detectors without altering the backbone or prompts. TED evaluates whether ambiguous responses are better supported by defect patches or normal patches, thereby distinguishing true defects from visually complex normal regions. Experiments show that TED significantly enhances pixel‑level localization across frozen VLM backbones and adapted hosts, especially under hard‑false‑positive competition.

By JinYoung Kim, Geonho Kim, GiJeong Park, Geonu Lee, YoungJoon Yoo
arXiv AI
Jun 26

MMGist: A Comprehensive Multimodal Benchmark for 2027

arXiv:2606. 22437v2 Announce Type: replace-cross Abstract: We conduct a systematic study of 18 widely used vision-language benchmarks and identify three major issues: 1) many items do not rely on visual cues and therefore fail to effectively measure multimodal understanding; 2) many items are already close to performance saturation for current LVLMs, which limits their discriminative power; 3) a small number of anomalous items affect the reliability of evaluation results.

By Wenzhen Yuan, Jiacheng Ruan, Wutao Xiong, Chengping Zhao, Ting Liu, Yuzhuo Fu
arXiv AI
Oct 9

IAD-Unify: Task-Specific Interfaces for Industrial Anomaly Understanding, Segmentation, and Generation

IAD-Unify is a unified architecture that connects a multimodal language model, a dense visual expert, and a diffusion editor via task‑specific token interfaces to perform industrial anomaly inspection tasks such as explaining defects, localizing pixels, and generating controlled edits. It uses a multi‑reference DINOv2 pathway to create a dense anomaly field, compresses it into structured evidence tokens, and feeds these tokens to Qwen3.5 for grounded answers and semantic residuals, while a separate query interface integrates with Stable Diffusion for localized generation. The system is trained in stages—first aligning dense evidence with language, then calibrating segmentation, and finally pre‑training the diffusion editor—while also building a large, quality‑controlled dataset of anomaly evidence and edit pairs.

By Haoyu Zheng, Jiang Liu, Jiaqi Zhu, Feifei Shao, Zheqi Lv, Wenqiao Zhang