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Unsupervised Anomaly Detection (UAD) techniques aim to identify and localize anomalies without relying on annotations, only leveraging a model trained on a dataset known to be free of anomalies. Diffusion models learn to modify inputs $x$…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Sergio Naval Marimont , Matthew Baugh , Vasilis Siomos , Christos Tzelepis , Bernhard Kainz , Giacomo Tarroni

As an important and challenging problem in computer vision, zero-shot learning (ZSL) aims at automatically recognizing the instances from unseen object classes without training data. To address this problem, ZSL is usually carried out in…

Computer Vision and Pattern Recognition · Computer Science 2017-03-28 Yunlong Yu , Zhong Ji , Xi Li , Jichang Guo , Zhongfei Zhang , Haibin Ling , Fei Wu

Real-time depth reconstruction from ultra-high-resolution UAV imagery is essential for time-critical geospatial tasks such as disaster response, yet remains challenging due to wide-baseline parallax, large image sizes, low-texture or…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Selim Ahmet Iz , Francesco Nex , Norman Kerle , Henry Meissner , Ralf Berger

Despite recent advances in inversion-based editing, text-guided image manipulation remains challenging for diffusion models. The primary bottlenecks include 1) the time-consuming nature of the inversion process; 2) the struggle to balance…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Sihan Xu , Yidong Huang , Jiayi Pan , Ziqiao Ma , Joyce Chai

Most existing anomaly detection (AD) methods require a dedicated model for each category. Such a paradigm, despite its promising results, is computationally expensive and inefficient, thereby failing to meet the requirements for realworld…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Chaoqin Huang , Haoyan Guan , Aofan Jiang , Ya Zhang , Michael Spratling , Xinchao Wang , Yanfeng Wang

This paper considers blind inverse image restoration, the task of predicting a target image from a degraded source when the degradation (i.e. the forward operator) is unknown. Existing solutions typically rely on restrictive assumptions…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Michail Dontas , Yutong He , Naoki Murata , Yuki Mitsufuji , J. Zico Kolter , Ruslan Salakhutdinov

Few-shot anomaly detection streamlines and simplifies industrial safety inspection. However, limited samples make accurate differentiation between normal and abnormal features challenging, and even more so under category-agnostic…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Guangyao Zhai , Yue Zhou , Xinyan Deng , Lars Heckler , Nassir Navab , Benjamin Busam

Zero-shot domain adaptation (ZSDA) is a domain adaptation problem in the situation that labeled samples for a target task (task of interest) are only available from the source domain at training time, but for a task different from the task…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Yu Zhe , Jun Sakuma

Zero-shot anomaly detection (ZSAD) enables anomaly detection without normal samples from target categories, addressing scenarios where task-specific training data is unavailable. However, existing ZSAD methods either neglect adaptation of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Kiyoon Jeong , Jaehyuk Heo , Junyeong Son , Pilsung Kang

Zero-Shot Video Anomaly Detection (ZS-VAD) requires temporally localizing anomalies without target domain training data, which is a crucial task due to various practical concerns, e.g., data privacy or new surveillance deployments.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Canhui Tang , Sanping Zhou , Haoyue Shi , Le Wang

We present ZeroComp, an effective zero-shot 3D object compositing approach that does not require paired composite-scene images during training. Our method leverages ControlNet to condition from intrinsic images and combines it with a Stable…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Zitian Zhang , Frédéric Fortier-Chouinard , Mathieu Garon , Anand Bhattad , Jean-François Lalonde

Zero-shot anomaly detection (ZSAD) aims to identify anomalies in unseen categories by leveraging CLIP's zero-shot capabilities to match text prompts with visual features. A key challenge in ZSAD is learning general prompts stably and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Donghyeong Kim , Chaewon Park , Suhwan Cho , Hyeonjeong Lim , Minseok Kang , Jungho Lee , Sangyoun Lee

Zero-shot object detection (ZSD), the task that extends conventional detection models to detecting objects from unseen categories, has emerged as a new challenge in computer vision. Most existing approaches tackle the ZSD task with a strict…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Caixia Yan , Xiaojun Chang , Minnan Luo , Huan Liu , Xiaoqin Zhang , Qinghua Zheng

Research in vision-language models has seen rapid developments off-late, enabling natural language-based interfaces for image generation and manipulation. Many existing text guided manipulation techniques are restricted to specific classes…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Paramanand Chandramouli , Kanchana Vaishnavi Gandikota

Finding an initial noise vector that produces an input image when fed into the diffusion process (known as inversion) is an important problem in denoising diffusion models (DDMs), with applications for real image editing. The…

Computer Vision and Pattern Recognition · Computer Science 2022-12-23 Bram Wallace , Akash Gokul , Nikhil Naik

We present DiffIR2VR-Zero, a zero-shot framework that enables any pre-trained image restoration diffusion model to perform high-quality video restoration without additional training. While image diffusion models have shown remarkable…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Chang-Han Yeh , Hau-Shiang Shiu , Chin-Yang Lin , Zhixiang Wang , Chi-Wei Hsiao , Ting-Hsuan Chen , Yu-Lun Liu

Zero-shot anomaly detection (ZSAD) targets the identification of anomalies within images from arbitrary novel categories. This study introduces AdaCLIP for the ZSAD task, leveraging a pre-trained vision-language model (VLM), CLIP. AdaCLIP…

Computer Vision and Pattern Recognition · Computer Science 2025-02-17 Yunkang Cao , Jiangning Zhang , Luca Frittoli , Yuqi Cheng , Weiming Shen , Giacomo Boracchi

Diffusion inversion is a task of recovering the noise of an image in a diffusion model, which is vital for controllable diffusion image editing. At present, diffusion inversion still remains a challenging task due to the lack of viable…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Ziyue Zhang , Luxi Lin , Xiaolin Hu , Chao Chang , HuaiXi Wang , Yiyi Zhou , Rongrong Ji

Embedding inversion, i.e., reconstructing text given its embedding and black-box access to the embedding encoder, is a fundamental problem in both NLP and security. From the NLP perspective, it helps determine how much semantic information…

Computation and Language · Computer Science 2025-04-02 Collin Zhang , John X. Morris , Vitaly Shmatikov

Skeleton-based video anomaly detection (SVAD) is a crucial task in computer vision. Accurately identifying abnormal patterns or events enables operators to promptly detect suspicious activities, thereby enhancing safety. Achieving this…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Ali Karami , Thi Kieu Khanh Ho , Narges Armanfard
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