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Three-dimensional point cloud anomaly detection that aims to detect anomaly data points from a training set serves as the foundation for a variety of applications, including industrial inspection and autonomous driving. However, existing…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Baozhu Zhao , Qiwei Xiong , Xiaohan Zhang , Jingfeng Guo , Qi Liu , Xiaofen Xing , Xiangmin Xu

Image anomaly detection plays a pivotal role in industrial inspection. Traditional approaches often demand distinct models for specific categories, resulting in substantial deployment costs. This raises concerns about multi-class anomaly…

计算机视觉与模式识别 · 计算机科学 2024-06-18 Haiming Yao , Yunkang Cao , Wei Luo , Weihang Zhang , Wenyong Yu , Weiming Shen

Current point-cloud detection methods have difficulty detecting the open-vocabulary objects in the real world, due to their limited generalization capability. Moreover, it is extremely laborious and expensive to collect and fully annotate a…

计算机视觉与模式识别 · 计算机科学 2022-07-06 Yuheng Lu , Chenfeng Xu , Xiaobao Wei , Xiaodong Xie , Masayoshi Tomizuka , Kurt Keutzer , Shanghang Zhang

Large pre-trained Vision-Language Models (VLMs) such as Contrastive Language-Image Pre-training (CLIP) have been shown to be susceptible to adversarial attacks, raising concerns about their deployment in safety-critical applications like…

计算机视觉与模式识别 · 计算机科学 2025-09-17 Lin Luo , Xin Wang , Bojia Zi , Shihao Zhao , Xingjun Ma , Yu-Gang Jiang

In practice, machine learning methods commonly require anomaly detection (AD) to filter inputs or detect distributional shifts. Typically, this is implemented by running a separate AD model alongside the primary model. However, this…

机器学习 · 计算机科学 2026-03-19 Luca Hinkamp , Simon Klüttermann , Emmanuel Müller

Large-scale pre-trained models have shown promising open-world performance for both vision and language tasks. However, their transferred capacity on 3D point clouds is still limited and only constrained to the classification task. In this…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Xiangyang Zhu , Renrui Zhang , Bowei He , Ziyu Guo , Ziyao Zeng , Zipeng Qin , Shanghang Zhang , Peng Gao

3D Anomaly Detection (AD) is a promising means of controlling the quality of manufactured products. However, existing methods typically require carefully training a task-specific model for each category independently, leading to high cost,…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Jiayi Cheng , Can Gao , Jie Zhou , Jiajun Wen , Tao Dai , Jinbao Wang

Anomaly detection (AD) has been recently employed in the context of edge cloud computing, e.g., for intrusion detection and identification of performance issues. However, state-of-the-art anomaly detection procedures do not systematically…

网络与互联网体系结构 · 计算机科学 2024-01-17 Sotiris Skaperas , George Koukis , Ioanna Angeliki Kapetanidou , Vassilis Tsaoussidis , Lefteris Mamatas

The paper explores the industrial multimodal Anomaly Detection (AD) task, which exploits point clouds and RGB images to localize anomalies. We introduce a novel light and fast framework that learns to map features from one modality to the…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Alex Costanzino , Pierluigi Zama Ramirez , Giuseppe Lisanti , Luigi Di Stefano

As powerful pre-trained vision-language models (VLMs) like CLIP gain prominence, numerous studies have attempted to combine VLMs for downstream tasks. Among these, prompt learning has been validated as an effective method for adapting to…

计算机视觉与模式识别 · 计算机科学 2024-09-19 Yu Du , Tong Niu , Rong Zhao

Change detection from traditional \added{2D} optical images has limited capability to model the changes in the height or shape of objects. Change detection using 3D point cloud \added{from photogrammetry or LiDAR surveying} can fill this…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Iris de Gélis , Sudipan Saha , Muhammad Shahzad , Thomas Corpetti , Sébastien Lefèvre , Xiao Xiang Zhu

Contemporary deep neural networks offer state-of-the-art results when applied to visual reasoning, e.g., in the context of 3D point cloud data. Point clouds are important datatype for precise modeling of three-dimensional environments, but…

机器学习 · 计算机科学 2022-05-23 Maciej Zamorski , Michał Stypułkowski , Konrad Karanowski , Tomasz Trzciński , Maciej Zięba

Recently, sparsely-supervised 3D object detection has gained great attention, achieving performance close to fully-supervised 3D objectors while requiring only a few annotated instances. Nevertheless, these methods suffer challenges when…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Shijia Zhao , Qiming Xia , Xusheng Guo , Pufan Zou , Maoji Zheng , Hai Wu , Chenglu Wen , Cheng Wang

Large-scale vision-language models (VLMs), e.g., CLIP, learn broad visual concepts from tedious training data, showing superb generalization ability. Amount of prompt learning methods have been proposed to efficiently adapt the VLMs to…

计算机视觉与模式识别 · 计算机科学 2023-09-11 Hongyu Hu , Tiancheng Lin , Jie Wang , Zhenbang Sun , Yi Xu

Inferring missing regions from severely occluded point clouds is highly challenging. Especially for 3D shapes with rich geometry and structure details, inherent ambiguities of the unknown parts are existing. Existing approaches either learn…

计算机视觉与模式识别 · 计算机科学 2024-01-01 Linlian Jiang , Pan Chen , Ye Wang , Tieru Wu , Rui Ma

Large pre-trained vision-language models, such as CLIP, have shown remarkable generalization capabilities across various tasks when appropriate text prompts are provided. However, adapting these models to specific domains, like remote…

计算机视觉与模式识别 · 计算机科学 2023-12-13 Qinglong Cao , Zhengqin Xu , Yuntian Chen , Chao Ma , Xiaokang Yang

Prompt engineering has emerged as an indispensable technique for extending the capabilities of large language models (LLMs) and vision-language models (VLMs). This approach leverages task-specific instructions, known as prompts, to enhance…

人工智能 · 计算机科学 2025-03-18 Pranab Sahoo , Ayush Kumar Singh , Sriparna Saha , Vinija Jain , Samrat Mondal , Aman Chadha

Training a unified model is considered to be more suitable for practical industrial anomaly detection scenarios due to its generalization ability and storage efficiency. However, this multi-class setting, which exclusively uses normal data,…

计算机视觉与模式识别 · 计算机科学 2024-03-20 Jianlong Hu , Xu Chen , Zhenye Gan , Jinlong Peng , Shengchuan Zhang , Jiangning Zhang , Yabiao Wang , Chengjie Wang , Liujuan Cao , Rongrong Ji

Autonomous aerial monitoring is an important task aimed at gathering information from areas that may not be easily accessible by humans. At the same time, this task often requires recognizing anomalies from a significant distance or not…

计算机视觉与模式识别 · 计算机科学 2025-01-28 Tzoulio Chamiti , Nikolaos Passalis , Anastasios Tefas

Nowadays, pre-training big models on large-scale datasets has become a crucial topic in deep learning. The pre-trained models with high representation ability and transferability achieve a great success and dominate many downstream tasks in…

计算机视觉与模式识别 · 计算机科学 2022-10-13 Ziyi Wang , Xumin Yu , Yongming Rao , Jie Zhou , Jiwen Lu