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Classifiers built upon vision-language models such as CLIP have shown remarkable zero-shot performance across a broad range of image classification tasks. Prior work has studied different ways of automatically creating descriptor sets for…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Jan Hendrik Metzen , Piyapat Saranrittichai , Chaithanya Kumar Mummadi

Grounding-DINO is a state-of-the-art open-set detection model that tackles multiple vision tasks including Open-Vocabulary Detection (OVD), Phrase Grounding (PG), and Referring Expression Comprehension (REC). Its effectiveness has led to…

Computer Vision and Pattern Recognition · Computer Science 2024-01-08 Xiangyu Zhao , Yicheng Chen , Shilin Xu , Xiangtai Li , Xinjiang Wang , Yining Li , Haian Huang

Detecting anomalies in surveillance footage is inherently challenging due to their unpredictable and context-dependent nature. This work introduces a novel context-aware zero-shot anomaly detection framework that identifies abnormal events…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Md. Rashid Shahriar Khan , Md. Abrar Hasan , Mohammod Tareq Aziz Justice

Online sensing plays an important role in advancing modern manufacturing. The real-time sensor signals, which can be stored as high-resolution time series data, contain rich information about the operation status. One of its popular usages…

Machine Learning · Computer Science 2025-10-14 Frida Cantu , Salomon Ibarra , Arturo Gonzales , Jesus Barreda , Chenang Liu , Li Zhang

One persistent obstacle in industrial quality inspection is the detection of anomalies. In real-world use cases, two problems must be addressed: anomalous data is sparse and the same types of anomalies need to be detected on previously…

Computer Vision and Pattern Recognition · Computer Science 2024-07-04 Jonas Bühler , Jonas Fehrenbach , Lucas Steinmann , Christian Nauck , Marios Koulakis

Industrial surface defect detection often suffers from limited defect samples, severe long-tailed distributions, and difficulties in accurately localizing subtle defects under complex backgrounds. To address these challenges, this paper…

Artificial Intelligence · Computer Science 2026-04-22 Shuo Feng , Runlin Zhou , Yuyang Li , Guangcan Liu

Recent efforts towards video anomaly detection (VAD) try to learn a deep autoencoder to describe normal event patterns with small reconstruction errors. The video inputs with large reconstruction errors are regarded as anomalies at the test…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Yuandu Lai , Yahong Han , Yaowei Wang

In industrial vision, the anomaly detection problem can be addressed with an autoencoder trained to map an arbitrary image, i.e. with or without any defect, to a clean image, i.e. without any defect. In this approach, anomaly detection…

Image and Video Processing · Electrical Eng. & Systems 2020-11-05 Anne-Sophie Collin , Christophe De Vleeschouwer

Object Detection (OD) is an important computer vision problem for industry, which can be used for quality control in the production lines, among other applications. Recently, Deep Learning (DL) methods have enabled practitioners to train OD…

Computer Vision and Pattern Recognition · Computer Science 2021-02-16 Igor Garcia Ballhausen Sampaio , Luigy Machaca , José Viterbo , Joris Guérin

Zero-shot learning on 3D point cloud data is a related underexplored problem compared to its 2D image counterpart. 3D data brings new challenges for ZSL due to the unavailability of robust pre-trained feature extraction models. To address…

Computer Vision and Pattern Recognition · Computer Science 2022-09-30 Majid Nasiri , Ali Cheraghian , Townim Faisal Chowdhury , Sahar Ahmadi , Morteza Saberi , Shafin Rahman

Condition monitoring of industrial systems is crucial for ensuring safety and maintenance planning, yet notable challenges arise in real-world settings due to the limited or non-existent availability of fault samples. This paper introduces…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Maryam Ahang , Mostafa Abbasi , Todd Charter , Homayoun Najjaran

Automating the analysis of surveillance video footage is of great interest when urban environments or industrial sites are monitored by a large number of cameras. As anomalies are often context-specific, it is hard to predefine events of…

Computer Vision and Pattern Recognition · Computer Science 2020-11-13 Bo Li , Sam Leroux , Pieter Simoens

The deployment of automated pavement defect detection is often hindered by poor cross-domain generalization. Supervised detectors achieve strong in-domain accuracy but require costly re-annotation for new environments, while standard…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Xi Xiao , Zhuxuanzi Wang , Mingqiao Mo , Chen Liu , Chenrui Ma , Yanshu Li , Smita Krishnaswamy , Xiao Wang , Tianyang Wang

This paper tackles the problem of object counting in images. Existing approaches rely on extensive training data with point annotations for each object, making data collection labor-intensive and time-consuming. To overcome this, we propose…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Zenglin Shi , Ying Sun , Mengmi Zhang

Zero-shot medical detection can further improve detection performance without relying on annotated medical images even upon the fine-tuned model, showing great clinical value. Recent studies leverage grounded vision-language models (GLIP)…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Yuguang Yang , Tongfei Chen , Haoyu Huang , Linlin Yang , Chunyu Xie , Dawei Leng , Xianbin Cao , Baochang Zhang

Visual anomaly detection is vital in real-world applications, such as industrial defect detection and medical diagnosis. However, most existing methods focus on local structural anomalies and fail to detect higher-level functional anomalies…

Computer Vision and Pattern Recognition · Computer Science 2025-02-17 Yun Peng , Xiao Lin , Nachuan Ma , Jiayuan Du , Chuangwei Liu , Chengju Liu , Qijun Chen

Detecting out-of-distribution (OOD) inputs is pivotal for deploying safe vision systems in open-world environments. We revisit diffusion models, not as generators, but as universal perceptual templates for OOD detection. This research…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Lemar Abdi , Amaan Valiuddin , Francisco Caetano , Christiaan Viviers , Fons van der Sommen

More accurate extraction of invisible building footprints from very-high-resolution (VHR) aerial images relies on roof segmentation and roof-to-footprint offset extraction. Existing methods based on instance segmentation suffer from poor…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Kai Li , Yupeng Deng , Yunlong Kong , Diyou Liu , Jingbo Chen , Yu Meng , Junxian Ma , Chenhao Wang

Recently, promptable segmentation models, such as the Segment Anything Model (SAM), have demonstrated robust zero-shot generalization capabilities on static images. These promptable models exhibit denoising abilities for imprecise prompt…

Computer Vision and Pattern Recognition · Computer Science 2024-03-08 Tao Zhou , Wenhan Luo , Qi Ye , Zhiguo Shi , Jiming Chen

For text-to-image generation, automatically refining user-provided natural language prompts into the keyword-enriched prompts favored by systems is essential for the user experience. Such a prompt refinement process is analogous to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Jingtao Zhan , Qingyao Ai , Yiqun Liu , Yingwei Pan , Ting Yao , Jiaxin Mao , Shaoping Ma , Tao Mei