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相关论文: Counting Crowds in Bad Weather

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Automated scene analysis has been a topic of great interest in computer vision and cognitive science. Recently, with the growth of crowd phenomena in the real world, crowded scene analysis has attracted much attention. However, the visual…

计算机视觉与模式识别 · 计算机科学 2015-02-09 Teng Li , Huan Chang , Meng Wang , Bingbing Ni , Richang Hong , Shuicheng Yan

In recent years, anomaly events detection in crowd scenes attracts many researchers' attention, because of its importance to public safety. Existing methods usually exploit visual information to analyze whether any abnormal events have…

计算机视觉与模式识别 · 计算机科学 2021-10-29 Junyu Gao , Maoguo Gong , Xuelong Li

This study enhances a crowd density estimation algorithm originally designed for image-based analysis by adapting it for video-based scenarios. The proposed method integrates a denoising probabilistic model that utilizes diffusion processes…

计算机视觉与模式识别 · 计算机科学 2025-11-14 Balachandra Devarangadi Sunil , Rakshith Venkatesh , Shantanu Todmal

Adverse weather can cause noise to light detection and ranging (LiDAR) data. This is a problem since it is used in many outdoor applications, e.g. object detection and mapping. We propose the task of multi-echo denoising, where the goal is…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Alvari Seppänen , Risto Ojala , Kari Tammi

Most existing crowd counting methods require object location-level annotation, i.e., placing a dot at the center of an object. While being simpler than the bounding-box or pixel-level annotation, obtaining this annotation is still…

计算机视觉与模式识别 · 计算机科学 2020-03-03 Yinjie Lei , Yan Liu , Pingping Zhang , Lingqiao Liu

Dense crowd counting aims to predict thousands of human instances from an image, by calculating integrals of a density map over image pixels. Existing approaches mainly suffer from the extreme density variances. Such density pattern shift…

计算机视觉与模式识别 · 计算机科学 2019-08-09 Chenfeng Xu , Kai Qiu , Jianlong Fu , Song Bai , Yongchao Xu , Xiang Bai

Modern methods for counting people in crowded scenes rely on deep networks to estimate people densities in individual images. As such, only very few take advantage of temporal consistency in video sequences, and those that do only impose…

计算机视觉与模式识别 · 计算机科学 2020-07-16 Weizhe Liu , Mathieu Salzmann , Pascal Fua

Crowd counting is a fundamental problem in crowd analysis which is typically accomplished by estimating a crowd density map and summing over the density values. However, this approach suffers from background noise accumulation and loss of…

计算机视觉与模式识别 · 计算机科学 2024-04-05 Yasiru Ranasinghe , Nithin Gopalakrishnan Nair , Wele Gedara Chaminda Bandara , Vishal M. Patel

Recently multi-view crowd counting using deep neural networks has been proposed to enable counting in large and wide scenes using multiple cameras. The current methods project the camera-view features to the average-height plane of the 3D…

计算机视觉与模式识别 · 计算机科学 2024-10-31 Qi Zhang , Antoni B. Chan

We address the problem of image-based crowd counting. In particular, we propose a new problem called unlabeled scene-adaptive crowd counting. Given a new target scene, we would like to have a crowd counting model specifically adapted to…

计算机视觉与模式识别 · 计算机科学 2021-02-24 Mahesh Kumar Krishna Reddy , Mrigank Rochan , Yiwei Lu , Yang Wang

We propose a novel crowd counting approach that leverages abundantly available unlabeled crowd imagery in a learning-to-rank framework. To induce a ranking of cropped images , we use the observation that any sub-image of a crowded scene…

计算机视觉与模式识别 · 计算机科学 2018-03-09 Xialei Liu , Joost van de Weijer , Andrew D. Bagdanov

Multi-view crowd counting has been proposed to deal with the severe occlusion issue of crowd counting in large and wide scenes. However, due to the difficulty of collecting and annotating multi-view images, the datasets for multi-view…

计算机视觉与模式识别 · 计算机科学 2025-12-19 Qi Zhang , Yunfei Gong , Zhidan Xie , Zhizi Wang , Antoni B. Chan , Hui Huang

Domain shift across crowd data severely hinders crowd counting models to generalize to unseen scenarios. Although domain adaptive crowd counting approaches close this gap to a certain extent, they are still dependent on the target domain…

计算机视觉与模式识别 · 计算机科学 2023-03-29 Zhipeng Du , Jiankang Deng , Miaojing Shi

Since COVID-19, crowd-counting tasks have gained wide applications. While supervised methods are reliable, annotation is more challenging in high-density scenes due to small head sizes and severe occlusion, whereas it's simpler in…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Guoliang Xu , Jianqin Yin , Ren Zhang , Yonghao Dang , Feng Zhou , Bo Yu

In this paper, we describe our study on how humans allocate their attention during visual crowd counting. Using an eye tracker, we collect gaze behavior of human participants who are tasked with counting the number of people in crowd…

计算机视觉与模式识别 · 计算机科学 2020-09-29 Raji Annadi , Yupei Chen , Viresh Ranjan , Dimitris Samaras , Gregory Zelinsky , Minh Hoai

Vision in adverse weather conditions, whether it be snow, rain, or fog is challenging. In these scenarios, scattering and attenuation severly degrades image quality. Handling such inclement weather conditions, however, is essential to…

计算机视觉与模式识别 · 计算机科学 2023-05-04 Andrea Ramazzina , Mario Bijelic , Stefanie Walz , Alessandro Sanvito , Dominik Scheuble , Felix Heide

Research in neural networks in the field of computer vision has achieved remarkable accuracy for point estimation. However, the uncertainty in the estimation is rarely addressed. Uncertainty quantification accompanied by point estimation…

计算机视觉与模式识别 · 计算机科学 2020-04-23 Min-hwan Oh , Peder A. Olsen , Karthikeyan Natesan Ramamurthy

Crowd counting is a challenging yet critical task in computer vision with applications ranging from public safety to urban planning. Recent advances using Convolutional Neural Networks (CNNs) that estimate density maps have shown…

计算机视觉与模式识别 · 计算机科学 2025-07-10 Abhinav Sagar

We propose a method to infer semantic segmentation maps from images captured under adverse weather conditions. We begin by examining existing models on images degraded by weather conditions such as rain, fog, or snow, and found that they…

计算机视觉与模式识别 · 计算机科学 2024-05-09 Blake Gella , Howard Zhang , Rishi Upadhyay , Tiffany Chang , Nathan Wei , Matthew Waliman , Yunhao Ba , Celso de Melo , Alex Wong , Achuta Kadambi

More information leads to better decisions and predictions, right? Confirming this hypothesis, several studies concluded that the simultaneous use of optical and thermal images leads to better predictions in crowd counting. However, the way…

计算机视觉与模式识别 · 计算机科学 2023-04-14 Martin Thißen , Elke Hergenröther