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Under the semi-supervised framework, we propose an end-to-end memory-based segmentation network (MemSeg) to detect surface defects on industrial products. Considering the small intra-class variance of products in the same production line,…

计算机视觉与模式识别 · 计算机科学 2022-05-03 Minghui Yang , Peng Wu , Jing Liu , Hui Feng

Anomaly detection consists in identifying, within a dataset, those samples that significantly differ from the majority of the data, representing the normal class. It has many practical applications, e.g. ranging from defective product…

计算机视觉与模式识别 · 计算机科学 2020-11-13 Pankaj Mishra , Claudio Piciarelli , Gian Luca Foresti

Anomaly detection with only prior knowledge from normal samples attracts more attention because of the lack of anomaly samples. Existing CNN-based pixel reconstruction approaches suffer from two concerns. First, the reconstruction source…

计算机视觉与模式识别 · 计算机科学 2022-12-12 Zhiyuan You , Kai Yang , Wenhan Luo , Lei Cui , Yu Zheng , Xinyi Le

Anomaly detection in industrial visual inspection is challenging due to the scarcity of defective samples. Most existing methods rely on unsupervised reconstruction using only normal data, often resulting in overfitting and poor detection…

计算机视觉与模式识别 · 计算机科学 2025-11-26 Amirhossein Khadivi Noghredeh , Abdollah Safari , Fatemeh Ziaeetabar , Firoozeh Haghighi

Anomaly detection in time series has been widely researched and has important practical applications. In recent years, anomaly detection algorithms are mostly based on deep-learning generative models and use the reconstruction error to…

机器学习 · 计算机科学 2020-10-15 Chunkai Zhang , Wei Zuo , Xuan Wang

The reconstruction of object surfaces from multi-view images or monocular video is a fundamental issue in computer vision. However, much of the recent research concentrates on reconstructing geometry through implicit or explicit methods. In…

计算机视觉与模式识别 · 计算机科学 2023-12-20 Licheng Zhong , Lixin Yang , Kailin Li , Haoyu Zhen , Mei Han , Cewu Lu

Reconstruction-based anomaly detection models achieve their purpose by suppressing the generalization ability for anomaly. However, diverse normal patterns are consequently not well reconstructed as well. Although some efforts have been…

计算机视觉与模式识别 · 计算机科学 2023-03-10 Wenrui Liu , Hong Chang , Bingpeng Ma , Shiguang Shan , Xilin Chen

Anomaly detection and localization without any manual annotations and prior knowledge is a challenging task under the setting of unsupervised learning. The existing works achieve excellent performance in the anomaly detection, but with…

计算机视觉与模式识别 · 计算机科学 2024-05-16 Honghui Chen , Pingping Chen , Huan Mao , Mengxi Jiang

Degradation-agnostic image restoration aims to handle diverse corruptions with one unified model, but faces fundamental challenges in balancing efficiency and performance across different degradation types. Existing approaches either…

计算机视觉与模式识别 · 计算机科学 2026-03-02 Bin Ren , Yawei Li , Xu Zheng , Yuqian Fu , Danda Pani Paudel , Hong Liu , Ming-Hsuan Yang , Luc Van Gool , Nicu Sebe

Neural Radiance Fields (NeRF) achieve remarkable performance in dense multi-view scenarios, but their reconstruction quality degrades significantly under sparse inputs due to geometric artifacts. Existing methods utilize global depth…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Weiqi Yu , Yiyang Yao , Lin He , Jianming Lv

Surface reconstruction with preservation of geometric features is a challenging computer vision task. Despite significant progress in implicit shape reconstruction, state-of-the-art mesh extraction methods often produce aliased,…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Natalia Soboleva , Olga Gorbunova , Maria Ivanova , Evgeny Burnaev , Matthias Nießner , Denis Zorin , Alexey Artemov

3D anomaly detection is critical in industrial quality inspection. While existing methods achieve notable progress, their performance degrades in high-precision 3D anomaly detection due to insufficient global information. To address this,…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Yihan Sun , Yuqi Cheng , Yunkang Cao , Yuxin Zhang , Weiming Shen

Hyperspectral signal reconstruction aims at recovering the original spectral input that produced a certain trichromatic (RGB) response from a capturing device or observer. Given the heavily underconstrained, non-linear nature of the…

计算机视觉与模式识别 · 计算机科学 2018-03-15 Aitor Alvarez-Gila , Joost van de Weijer , Estibaliz Garrote

Fast data acquisition in Magnetic Resonance Imaging (MRI) is vastly in demand and scan time directly depends on the number of acquired k-space samples. The data-driven methods based on deep neural networks have resulted in promising…

图像与视频处理 · 电气工程与系统科学 2020-01-01 Ali Pour Yazdanpanah , Onur Afacan , Simon K. Warfield

Image reconstruction based on an edge-sparsity assumption has become popular in recent years. Many methods of this type are capable of reconstructing nearly perfect edge-sparse images using limited data. In this paper, we present a method…

图像与视频处理 · 电气工程与系统科学 2019-02-04 Victor Churchill , Anne Gelb

We present two methods that combine image reconstruction and edge detection in computed tomography (CT) scans. Our first method is as an extension of the prominent filtered backprojection algorithm. In our second method we employ…

数值分析 · 数学 2021-10-14 Jürgen Frikel , Simon Göppel , Markus Haltmeier

The paper presents a new model for single channel images low-level interpretation. The image is decomposed into a graph which captures a complete set of structural features. The description allows to accurately identify every edge location…

计算机视觉与模式识别 · 计算机科学 2019-04-23 Alessandro Dal Palu'

In this paper, we propose a geometric neural network with edge-aware refinement (GeoNet++) to jointly predict both depth and surface normal maps from a single image. Building on top of two-stream CNNs, GeoNet++ captures the geometric…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Xiaojuan Qi , Zhengzhe Liu , Renjie Liao , Philip H. S. Torr , Raquel Urtasun , Jiaya Jia

We introduce a new algorithm for regularized reconstruction of multispectral (MS) images from noisy linear measurements. Unlike traditional approaches, the proposed algorithm regularizes the recovery problem by using a prior specified…

图像与视频处理 · 电气工程与系统科学 2019-09-23 Jiaming Liu , Yu Sun , Ulugbek S. Kamilov

Tomographic image reconstruction with deep learning is an emerging field, but a recent landmark study reveals that several deep reconstruction networks are unstable for computed tomography (CT) and magnetic resonance imaging (MRI).…

图像与视频处理 · 电气工程与系统科学 2021-09-14 Weiwen Wu , Dianlin Hu , Wenxiang Cong , Hongming Shan , Shaoyu Wang , Chuang Niu , Pingkun Yan , Hengyong Yu , Varut Vardhanabhuti , Ge Wang