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With the rapid progress of China's urbanization, research on the automatic detection of land-use patterns in Chinese cities is of substantial importance. Deep learning is an effective method to extract image features. To take advantage of…

Computer Vision and Pattern Recognition · Computer Science 2017-08-07 Yao Yao , Haolin Liang , Xia Li , Jinbao Zhang , Jialv He

Crowd gatherings at social and cultural events are increasing in leaps and bounds with the increase in population. Surveillance through computer vision and expert decision making systems can help to understand the crowd phenomena at large…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Shreetam Behera , Debi Prosad Dogra , Malay Kumar Bandyopadhyay , Partha Pratim Roy

In this paper, the dual-optical attention fusion crowd head point counting model (TAPNet) is proposed to address the problem of the difficulty of accurate counting in complex scenes such as crowd dense occlusion and low light in crowd…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Fei Zhou , Yi Li , Mingqing Zhu

Markov random fields (MRFs) have been widely used as prior models in various inverse problems such as tomographic reconstruction. While MRFs provide a simple and often effective way to model the spatial dependencies in images, they suffer…

Computer Vision and Pattern Recognition · Computer Science 2016-06-17 Ruoqiao Zhang , Dong Hye Ye , Debashish Pal , Jean-Baptiste Thibault , Ken D. Sauer , Charles A. Bouman

Billions of photos are uploaded to the web daily through various types of social networks. Some of these images receive millions of views and become popular, whereas others remain completely unnoticed. This raises the problem of predicting…

Computer Vision and Pattern Recognition · Computer Science 2021-05-20 Fatma S. Abousaleh , Wen-Huang Cheng , Neng-Hao Yu , Yu Tsao

Currently, for crowd counting, the fully supervised methods via density map estimation are the mainstream research directions. However, such methods need location-level annotation of persons in an image, which is time-consuming and…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Fusen Wang , Kai Liu , Fei Long , Nong Sang , Xiaofeng Xia , Jun Sang

This paper proposes a method based on repulsive forces and sparse reconstruction for the detection and location of abnormal events in crowded scenes. In order to avoid the challenging problem of accurately tracking each specific individual…

Computer Vision and Pattern Recognition · Computer Science 2018-08-22 Pei Lv , Shunhua Liu , Mingliang Xu , Bing Zhou

Most existing methods for CRF estimation from a single image fail to handle general real images. For instance, EdgeCRF based on colour patches extracted from edges works effectively only when the presence of noise is insignificant, which is…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Aashish Sharma , Robby T. Tan , Loong-Fah Cheong

In this paper, we address the challenging problem of crowd counting in congested scenes. Specifically, we present Inverse Attention Guided Deep Crowd Counting Network (IA-DCCN) that efficiently infuses segmentation information through an…

Computer Vision and Pattern Recognition · Computer Science 2019-07-23 Vishwanath A. Sindagi , Vishal M. Patel

Many problems in real-world applications involve predicting several random variables which are statistically related. Markov random fields (MRFs) are a great mathematical tool to encode such relationships. The goal of this paper is to…

Machine Learning · Computer Science 2015-04-29 Liang-Chieh Chen , Alexander G. Schwing , Alan L. Yuille , Raquel Urtasun

Mega-city analysis with very high resolution (VHR) satellite images has been drawing increasing interest in the fields of city planning and social investigation. It is known that accurate land-use, urban density, and population distribution…

Computer Vision and Pattern Recognition · Computer Science 2017-02-28 Fan Zhang , Bo Du , Liangpei Zhang

We propose a multitask approach for crowd counting and person localization in a unified framework. As the detection and localization tasks are well-correlated and can be jointly tackled, our model benefits from a multitask solution by…

Computer Vision and Pattern Recognition · Computer Science 2022-02-22 Mohsen Zand , Haleh Damirchi , Andrew Farley , Mahdiyar Molahasani , Michael Greenspan , Ali Etemad

Crowd localization, predicting head positions, is a more practical and high-level task than simply counting. Existing methods employ pseudo-bounding boxes or pre-designed localization maps, relying on complex post-processing to obtain the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Dingkang Liang , Wei Xu , Xiang Bai

We propose a novel two-phase approach to functional network estimation of multi-subject functional Magnetic Resonance Imaging (fMRI) data, which applies model-based image segmentation to determine a group-representative connectivity map. In…

Computation · Statistics 2018-09-05 Aditi Iyer , Bingjing Tang , Vinayak Rao , Nan Kong

We present a learning-based method for synthesizing novel views of complex scenes using only unstructured collections of in-the-wild photographs. We build on Neural Radiance Fields (NeRF), which uses the weights of a multilayer perceptron…

Computer Vision and Pattern Recognition · Computer Science 2021-01-07 Ricardo Martin-Brualla , Noha Radwan , Mehdi S. M. Sajjadi , Jonathan T. Barron , Alexey Dosovitskiy , Daniel Duckworth

Recently, Neural Radiance Fields (NeRF) achieved impressive results in novel view synthesis. Block-NeRF showed the capability of leveraging NeRF to build large city-scale models. For large-scale modeling, a mass of image data is necessary.…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Tong Qin , Changze Li , Haoyang Ye , Shaowei Wan , Minzhen Li , Hongwei Liu , Ming Yang

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…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Dingkang Liang , Jiahao Xie , Zhikang Zou , Xiaoqing Ye , Wei Xu , Xiang Bai

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…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Junyu Gao , Maoguo Gong , Xuelong Li

An important aspect of urban planning is understanding crowd levels at various locations, which typically require the use of physical sensors. Such sensors are potentially costly and time consuming to implement on a large scale. To address…

Social and Information Networks · Computer Science 2020-12-08 Jerome Heng , Junhua Liu , Kwan Hui Lim

We address the problem of transferring the style of a headshot photo to face images. Existing methods using a single exemplar lead to inaccurate results when the exemplar does not contain sufficient stylized facial components for a given…

Computer Vision and Pattern Recognition · Computer Science 2017-08-29 Yibing Song , Linchao Bao , Shengfeng He , Qingxiong Yang , Ming-Hsuan Yang