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This paper proposes a novel approach for crowd counting in low to high density scenarios in static images. Current approaches cannot handle huge crowd diversity well and thus perform poorly in extreme cases, where the crowd density in…

计算机视觉与模式识别 · 计算机科学 2020-02-28 Usman Sajid , Hasan Sajid , Hongcheng Wang , Guanghui Wang

The problem of counting crowds in varying density scenes or in different density regions of the same scene, named as pan-density crowd counting, is highly challenging. Previous methods are designed for single density scenes or do not fully…

计算机视觉与模式识别 · 计算机科学 2020-01-10 Yukun Tian , Yiming Lei , Junping Zhang , James Z. Wang

Crowd counting finds direct applications in real-world situations, making computational efficiency and performance crucial. However, most of the previous methods rely on a heavy backbone and a complex downstream architecture that restricts…

计算机视觉与模式识别 · 计算机科学 2024-01-12 Yashwardhan Chaudhuri , Ankit Kumar , Orchid Chetia Phukan , Arun Balaji Buduru

We propose a precise and efficient normal estimation method that can deal with noise and nonuniform density for unstructured 3D point clouds. Unlike existing approaches that directly take patches and ignore the local neighborhood…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Keqiang Li , Mingyang Zhao , Huaiyu Wu , Dong-Ming Yan , Zhen Shen , Fei-Yue Wang , Gang Xiong

When dealing with subjective, noisy, or otherwise nebulous features, the "wisdom of crowds" suggests that one may benefit from multiple judgments of the same feature on the same object. We give theoretically-motivated `feature…

机器学习 · 计算机科学 2013-05-16 Sivan Sabato , Adam Kalai

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.…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Muming Zhao , Jian Zhang , Chongyang Zhang , Wenjun Zhang

Mobile on-body sensing has distinct advantages for the analysis and understanding of crowd dynamics: sensing is not geographically restricted to a specific instrumented area, mobile phones offer on-body sensing and they are already deployed…

物理与社会 · 物理学 2011-09-09 Daniel Roggen , Martin Wirz , Gerhard Tröster , Dirk Helbing

We address the problem of crowd localization, i.e., the prediction of dots corresponding to people in a crowded scene. Due to various challenges, a localization method is prone to spatial semantic errors, i.e., predicting multiple dots…

计算机视觉与模式识别 · 计算机科学 2020-12-24 Shahira Abousamra , Minh Hoai , Dimitris Samaras , Chao Chen

Crowd counting aims to estimate the number of persons in a scene. Most state-of-the-art crowd counting methods based on color images can't work well in poor illumination conditions due to invisible objects. With the widespread use of…

计算机视觉与模式识别 · 计算机科学 2023-01-10 Zhengyi Liu , Wei Wu , Yacheng Tan , Guanghui Zhang

People counting system in crowded places has become a very useful practical application that can be accomplished in various ways which include many traditional methods using sensors. Examining the case of real time scenarios, the algorithm…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Satyanarayana Penke , Gopikrishna Pavuluri , Soukhya Kunda , Satvik M , CharanKumar Y

Cluster analysis has become one of the most exercised research areas over the past few decades in computer science. As a consequence, numerous clustering algorithms have already been developed to find appropriate partitions of a set of…

人机交互 · 计算机科学 2016-10-26 Abhisek Dash , Sujoy Chatterjee , Tripti Prasad , Malay Bhattacharyya

Object recognition is a primary function of the human visual system. It has recently been claimed that the highly successful ability to recognise objects in a set of emergent computer vision systems---Deep Convolutional Neural Networks…

计算机视觉与模式识别 · 计算机科学 2019-11-26 Ben Lonnqvist , Alasdair D. F. Clarke , Ramakrishna Chakravarthi

Recently, convolutional neural networks (CNNs) are the leading defacto method for crowd counting. However, when dealing with video datasets, CNN-based methods still process each video frame independently, thus ignoring the powerful temporal…

计算机视觉与模式识别 · 计算机科学 2019-08-13 Zhikang Zou , Huiliang Shao , Xiaoye Qu , Wei Wei , Pan Zhou

The increasing practice of engaging crowds, where organizations use IT to connect with dispersed individuals for explicit resource creation purposes, has precipitated the need to measure the precise processes and benefits of these…

计算机与社会 · 计算机科学 2017-02-15 J. Prpic , P. , Shukla

Crowd localization is a new computer vision task, evolved from crowd counting. Different from the latter, it provides more precise location information for each instance, not just counting numbers for the whole crowd scene, which brings…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Junyu Gao , Maoguo Gong , Xuelong Li

Due to domain shift, a large performance drop is usually observed when a trained crowd counting model is deployed in the wild. While existing domain-adaptive crowd counting methods achieve promising results, they typically regard each crowd…

计算机视觉与模式识别 · 计算机科学 2023-04-03 Yongtuo Liu , Dan Xu , Sucheng Ren , Hanjie Wu , Hongmin Cai , Shengfeng He

Crowd counting is an important vision task, which faces challenges on continuous scale variation within a given scene and huge density shift both within and across images. These challenges are typically addressed using multi-column…

计算机视觉与模式识别 · 计算机科学 2020-05-26 Mingjie Wang , Hao Cai , Jun Zhou , Minglun Gong

This paper introduces a novel method for end-to-end crowd detection that leverages object density information to enhance existing transformer-based detectors. We present CrowdQuery (CQ), whose core component is our CQ module that predicts…

计算机视觉与模式识别 · 计算机科学 2025-09-11 Marius Dähling , Sebastian Krebs , J. Marius Zöllner

Supervised crowd counting relies heavily on costly manual labeling, which is difficult and expensive, especially in dense scenes. To alleviate the problem, we propose a novel unsupervised framework for crowd counting, named CrowdCLIP. The…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Dingkang Liang , Jiahao Xie , Zhikang Zou , Xiaoqing Ye , Wei Xu , Xiang Bai

In this paper, we propose a fast fully convolutional neural network (FCNN) for crowd segmentation. By replacing the fully connected layers in CNN with 1 by 1 convolution kernels, FCNN takes whole images as inputs and directly outputs…

计算机视觉与模式识别 · 计算机科学 2014-11-18 Kai Kang , Xiaogang Wang