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In this paper, we propose a simple yet effective crowd counting and localization network named SCALNet. Unlike most existing works that separate the counting and localization tasks, we consider those tasks as a pixel-wise dense prediction…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Yi Wang , Xinyu Hou , Lap-Pui Chau

Many convolutional neural networks (CNNs) rely on progressive downsampling of their feature maps to increase the network's receptive field and decrease computational cost. However, this comes at the price of losing granularity in the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Robin Hesse , Simone Schaub-Meyer , Stefan Roth

As prior knowledge of objects or object features helps us make relations for similar objects on attentional tasks, pre-trained deep convolutional neural networks (CNNs) can be used to detect salient objects on images regardless of the…

Computer Vision and Pattern Recognition · Computer Science 2017-06-22 Nevrez Imamoglu , Chi Zhang , Wataru Shimoda , Yuming Fang , Boxin Shi

Occlusions, complex backgrounds, scale variations and non-uniform distributions present great challenges for crowd counting in practical applications. In this paper, we propose a novel method using an attention model to exploit head…

Computer Vision and Pattern Recognition · Computer Science 2018-06-28 Youmei Zhang , Chunluan Zhou , Faliang Chang , Alex C. Kot

Top-down information plays a central role in human perception, but plays relatively little role in many current state-of-the-art deep networks, such as Convolutional Neural Networks (CNNs). This work seeks to explore a path by which…

Neural and Evolutionary Computing · Computer Science 2015-11-24 Patrick W. Gallagher , Shuai Tang , Zhuowen Tu

Neural networks are vulnerable to input perturbations such as additive noise and adversarial attacks. In contrast, human perception is much more robust to such perturbations. The Bayesian brain hypothesis states that human brains use an…

Machine Learning · Computer Science 2020-11-11 Yujia Huang , James Gornet , Sihui Dai , Zhiding Yu , Tan Nguyen , Doris Y. Tsao , Anima Anandkumar

In recent years, significant progress has been made on the research of crowd counting. However, as the challenging scale variations and complex scenes existed in crowds, neither traditional convolution networks nor recent Transformer…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Xing Wei , Yuanrui Kang , Jihao Yang , Yunfeng Qiu , Dahu Shi , Wenming Tan , Yihong Gong

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…

Computer Vision and Pattern Recognition · Computer Science 2019-08-09 Chenfeng Xu , Kai Qiu , Jianlong Fu , Song Bai , Yongchao Xu , Xiang Bai

State-of-the-art methods for counting people in crowded scenes rely on deep networks to estimate crowd density in the image plane. While useful for this purpose, this image-plane density has no immediate physical meaning because it is…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Weizhe Liu , Krzysztof Lis , Mathieu Salzmann , Pascal Fua

In this paper, we propose a new query-based detection framework for crowd detection. Previous query-based detectors suffer from two drawbacks: first, multiple predictions will be inferred for a single object, typically in crowded scenes;…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Anlin Zheng , Yuang Zhang , Xiangyu Zhang , Xiaojuan Qi , Jian Sun

In this era of artificial intelligence, deep neural networks like Convolutional Neural Networks (CNNs) have emerged as front-runners, often surpassing human capabilities. These deep networks are often perceived as the panacea for all…

Computer Vision and Pattern Recognition · Computer Science 2023-11-15 Neeraj Kumar Singh , Nikhil R. Pal

This paper proposes a DNN-based system that detects multiple people from a single depth image. Our neural network processes a depth image and outputs a likelihood map in image coordinates, where each detection corresponds to a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 David Fuentes-Jimenez , Cristina Losada-Gutierrez , David Casillas-Perez , Javier Macias-Guarasa , Roberto Martin-Lopez , Daniel Pizarro , Carlos A. Luna

Recent sophisticated CNN-based algorithms have demonstrated their extraordinary ability to automate counting crowds from images, thanks to their structures which are designed to address the issue of various head scales. However, these…

Computer Vision and Pattern Recognition · Computer Science 2022-10-19 Yiming Ma

In this work, we propose a new method for multi-person pose estimation which combines the traditional bottom-up and the top-down methods. Specifically, we perform the network feed-forwarding in a bottom-up manner, and then parse the poses…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Miaopeng Li , Zimeng Zhou , Jie Li , Xinguo Liu

We aim to model the top-down attention of a Convolutional Neural Network (CNN) classifier for generating task-specific attention maps. Inspired by a top-down human visual attention model, we propose a new backpropagation scheme, called…

Computer Vision and Pattern Recognition · Computer Science 2016-08-02 Jianming Zhang , Zhe Lin , Jonathan Brandt , Xiaohui Shen , Stan Sclaroff

Many visual phenomena suggest that humans use top-down generative or reconstructive processes to create visual percepts (e.g., imagery, object completion, pareidolia), but little is known about the role reconstruction plays in robust object…

Computer Vision and Pattern Recognition · Computer Science 2023-02-09 Seoyoung Ahn , Hossein Adeli , Gregory J. Zelinsky

Attentional Neural Network is a new framework that integrates top-down cognitive bias and bottom-up feature extraction in one coherent architecture. The top-down influence is especially effective when dealing with high noise or difficult…

Computer Vision and Pattern Recognition · Computer Science 2014-11-20 Qian Wang , Jiaxing Zhang , Sen Song , Zheng Zhang

In this paper we propose ResnetCrowd, a deep residual architecture for simultaneous crowd counting, violent behaviour detection and crowd density level classification. To train and evaluate the proposed multi-objective technique, a new 100…

Computer Vision and Pattern Recognition · Computer Science 2017-05-31 Mark Marsden , Kevin McGuinness , Suzanne Little , Noel E. O'Connor

Crowd predictions have demonstrated powerful performance in predicting future events. We aim to understand crowd prediction efficacy in ascertaining the veracity of human emotional expressions. We discover that collective discernment can…

Human-Computer Interaction · Computer Science 2018-08-17 Zhenyue Qin , Tom Gedeon , Sabrina Caldwell

Recently, the research of wireless sensing has achieved more intelligent results, and the intelligent sensing of human location and activity can be realized by means of WiFi devices. However, most of the current human environment perception…

Machine Learning · Computer Science 2019-03-14 Shangqing Liu , Yanchao Zhao , Fanggang Xue , Bing Chen , Xiang Chen
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