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Attention mechanism, especially channel attention, has gained great success in the computer vision field. Many works focus on how to design efficient channel attention mechanisms while ignoring a fundamental problem, i.e., channel attention…

Computer Vision and Pattern Recognition · Computer Science 2021-07-26 Zequn Qin , Pengyi Zhang , Fei Wu , Xi Li

Counting the number of items in a visual scene remains a fundamental yet challenging task in computer vision. Traditional approaches to solving this problem rely on domain-specific counting architectures, which are trained using datasets…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Kuinan Hou , Jing Mi , Marco Zorzi , Lamberto Ballan , Alberto Testolin

Object counting is a foundational vision task with over a decade of dedicated research, yet state-of-the-art models still fail systematically in the mixed-object setting that dominates real-world applications such as industrial inspection…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Corentin Dumery , Niki Amini-Naieni , Shervin Naini , Pascal Fua

Many animal species can approximately judge the number of objects in a visual scene at a single glance, and humans can further determine the exact cardinality of a set by deploying systematic counting procedures. In contrast, it has been…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Alberto Testolin , Kuinan Hou , Marco Zorzi

The mother machine is a popular microfluidic device that allows long-term time-lapse imaging of thousands of cells in parallel by microscopy. It has become a valuable tool for single-cell level quantitative analysis and characterization of…

Image and Video Processing · Electrical Eng. & Systems 2020-09-22 Jean Ollion , Charles Ollion

Crowd counting is an important yet challenging task in computer vision due to serious occlusions, complex background and large scale variations, etc. Multi-column architecture is widely adopted to overcome these challenges, yielding…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Junhao Cheng , Zhuojun Chen , XinYu Zhang , Yizhou Li , Xiaoyuan Jing

Large-scale fine-grained image retrieval has two main problems. First, low dimensional feature embedding can fasten the retrieval process but bring accuracy reduce due to overlooking the feature of significant attention regions of images in…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Qi Zhao , Xu Wang , Shuchang Lyu , Binghao Liu , Yifan Yang

Fine-grained action recognition is attracting increasing attention due to the emerging demand of specific action understanding in real-world applications, whereas the data of rare fine-grained categories is very limited. Therefore, we…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Jiahao Wang , Yunhong Wang , Sheng Liu , Annan Li

Anomaly segmentation is a crucial task for safety-critical applications, such as autonomous driving in urban scenes, where the goal is to detect out-of-distribution (OOD) objects with categories which are unseen during training. The core…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Jiazhong Cen , Zenkun Jiang , Lingxi Xie , Qi Tian , Xiaokang Yang , Wei Shen

Object counting aims to estimate the number of objects in images. The leading counting approaches focus on the single category counting task and achieve impressive performance. Note that there are multiple categories of objects in real…

Computer Vision and Pattern Recognition · Computer Science 2021-09-01 Wei Xu , Dingkang Liang , Yixiao Zheng , Zhanyu Ma

We study anomaly clustering, grouping data into coherent clusters of anomaly types. This is different from anomaly detection that aims to divide anomalies from normal data. Unlike object-centered image clustering, anomaly clustering is…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Kihyuk Sohn , Jinsung Yoon , Chun-Liang Li , Chen-Yu Lee , Tomas Pfister

Detecting objects in aerial images is challenging for at least two reasons: (1) target objects like pedestrians are very small in pixels, making them hardly distinguished from surrounding background; and (2) targets are in general sparsely…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Fan Yang , Heng Fan , Peng Chu , Erik Blasch , Haibin Ling

The defocus deblurring raised from the finite aperture size and exposure time is an essential problem in the computational photography. It is very challenging because the blur kernel is spatially varying and difficult to estimate by…

Image and Video Processing · Electrical Eng. & Systems 2021-06-01 Pengwei Liang , Junjun Jiang , Xianming Liu , Jiayi Ma

Counting microbial colonies is a fundamental task in microbiology and has many applications in numerous industry branches. Despite this, current studies towards automatic microbial counting using artificial intelligence are hardly…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Sylwia Majchrowska , Jarosław Pawłowski , Natalia Czerep , Aleksander Górecki , Jakub Kuciński , Tomasz Golan

The spread of microbial infections is governed by the self-organization of bacteria on surfaces. Limitations of live imaging techniques make collective behaviors in clinically relevant systems challenging to quantify. Here, novel…

Biological Physics · Physics 2024-07-19 Vincent Hickl , Abid Khan , René M. Rossi , Bruno F. B. Silva , Katharina Maniura-Weber

Humans can easily detect a defect (anomaly) because it is different or salient when compared to the surface it resides on. Today, manual human visual inspection is still the norm because it is difficult to automate anomaly detection. Neural…

Machine Learning · Computer Science 2019-11-26 Manpreet Singh Minhas , John Zelek

High-density object counting in surveillance scenes is challenging mainly due to the drastic variation of object scales. The prevalence of deep learning has largely boosted the object counting accuracy on several benchmark datasets.…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Muming Zhao , Jian Zhang , Chongyang Zhang , Wenjun Zhang

X-Ray image enhancement, along with many other medical image processing applications, requires the segmentation of images into bone, soft tissue, and open beam regions. We apply a machine learning approach to this problem, presenting an…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Joseph Bullock , Carolina Cuesta-Lazaro , Arnau Quera-Bofarull

Despite the success of convolution- and attention-based models in vision tasks, their rigid receptive fields and complex architectures limit their ability to model irregular spatial patterns and hinder interpretability, therefore posing…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Xiangshuai Song , Jun-Jie Huang , Tianrui Liu , Ke Liang , Chang Tang

An ant colony optimization approach for partitioning a set of objects is proposed. In order to minimize the intra-variance, or within sum-of-squares, of the partitioned classes, we construct ant-like solutions by a constructive approach…

Machine Learning · Statistics 2019-12-04 Jeffry Chavarria-Molina , Juan Jose Fallas-Monge , Javier Trejos-Zelaya