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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…

Computer Vision and Pattern Recognition · Computer Science 2014-11-18 Kai Kang , Xiaogang Wang

Deep neural object detection or segmentation networks are commonly trained with pristine, uncompressed data. However, in practical applications the input images are usually deteriorated by compression that is applied to efficiently transmit…

Image and Video Processing · Electrical Eng. & Systems 2022-05-16 Kristian Fischer , Christian Blum , Christian Herglotz , André Kaup

Deep neural networks (DNN) which are employed in perception systems for autonomous driving require a huge amount of data to train on, as they must reliably achieve high performance in all kinds of situations. However, these DNN are usually…

Robotics · Computer Science 2023-08-01 Daniel Bogdoll , Svenja Uhlemeyer , Kamil Kowol , J. Marius Zöllner

Crowd counting problem aims to count the number of objects within an image or a frame in the videos and is usually solved by estimating the density map generated from the object location annotations. The values in the density map, by…

Computer Vision and Pattern Recognition · Computer Science 2019-06-21 Shengqin Jiang , Xiaobo Lu , Yinjie Lei , Lingqiao Liu

While Deep Neural Network (DNN) models have provided remarkable advances in machine vision capabilities, their high computational complexity and model sizes present a formidable roadblock to deployment in AIoT-based sensing applications. In…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Kasthuri Jayarajah , Dhanuja Wanniarachchige , Archan Misra

Detecting bird sounds in audio recordings automatically, if accurate enough, is expected to be of great help to the research community working in bio- and ecoacoustics, interested in monitoring biodiversity based on audio field recordings.…

Sound · Computer Science 2018-07-10 Thomas Pellegrini

Crowd counting has recently attracted increasing interest in computer vision but remains a challenging problem. In this paper, we propose a trellis encoder-decoder network (TEDnet) for crowd counting, which focuses on generating…

Computer Vision and Pattern Recognition · Computer Science 2019-04-22 Xiaolong Jiang , Zehao Xiao , Baochang Zhang , Xiantong Zhen , Xianbin Cao , David Doermann , Ling Shao

Deep neural networks, albeit their great success on feature learning in various computer vision tasks, are usually considered as impractical for online visual tracking because they require very long training time and a large number of…

Computer Vision and Pattern Recognition · Computer Science 2016-05-04 Hanxi Li , Yi Li , Fatih Porikli

Now a days, UAVs such as drones are greatly used for various purposes like that of capturing and target detection from ariel imagery etc. Easy access of these small ariel vehicles to public can cause serious security threats. For instance,…

Computer Vision and Pattern Recognition · Computer Science 2022-01-11 Aleena Ajaz , Ayesha Salar , Tauseef Jamal , Asif Ullah Khan

In recent years, vision-based crowd analysis has been studied extensively due to its practical applications in real world. In this paper, we formulate a novel crowd analysis problem, in which we aim to predict the crowd distribution in the…

Computer Vision and Pattern Recognition · Computer Science 2020-06-11 Yuzhen Niu , Weifeng Shi , Wenxi Liu , Shengfeng He , Jia Pan , Antoni B. Chan

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

Future airports are becoming more complex and congested with the increasing number of travellers. While the airports are more likely to become hotspots for potential conflicts to break out which can cause serious delays to flights and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Karan Kheta , Claire Delgove , Ruolin Liu , Adeola Aderogba , Marc-Olivier Pokam , Muhammed Mehmet Unal , Yang Xing , Weisi Guo

If a robot can predict crowds in parts of its environment that are inaccessible to its sensors, then it can plan to avoid them. This paper proposes a fast, online algorithm that learns average crowd densities in different areas. It also…

Artificial Intelligence · Computer Science 2017-10-17 Anoop Aroor , Susan L. Epstein

Traffic forecasting is a fundamental task in transportation research, however the scope of current research has mainly focused on a single data modality of loop detectors. Recently, the advances in Artificial Intelligence and drone…

Machine Learning · Computer Science 2025-04-29 Weijiang Xiong , Robert Fonod , Alexandre Alahi , Nikolas Geroliminis

Efficient traffic monitoring is crucial for managing urban transportation networks, especially under congested and dynamically changing traffic conditions. Drones offer a scalable and cost-effective alternative to fixed sensor networks.…

Systems and Control · Electrical Eng. & Systems 2025-03-28 Marko Maljkovic , Nikolas Geroliminis

Current state-of-the-art crowd navigation approaches are mainly deep reinforcement learning (DRL)-based. However, DRL-based methods suffer from the issues of generalization and scalability. To overcome these challenges, we propose a method…

Robotics · Computer Science 2023-09-26 Hafiq Anas , Ong Wee Hong , Owais Ahmed Malik

In this paper, we propose a novel perspective-guided convolution (PGC) for convolutional neural network (CNN) based crowd counting (i.e. PGCNet), which aims to overcome the dramatic intra-scene scale variations of people due to the…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Zhaoyi Yan , Yuchen Yuan , Wangmeng Zuo , Xiao Tan , Yezhen Wang , Shilei Wen , Errui Ding

Knowledge over the number of animals in large wildlife reserves is a vital necessity for park rangers in their efforts to protect endangered species. Manual animal censuses are dangerous and expensive, hence Unmanned Aerial Vehicles (UAVs)…

Computer Vision and Pattern Recognition · Computer Science 2018-07-02 Benjamin Kellenberger , Diego Marcos , Devis Tuia

Sampling-based motion planning is an effective tool to compute safe trajectories for automated vehicles in complex environments. However, a fast convergence to the optimal solution can only be ensured with the use of problem-specific…

Robotics · Computer Science 2019-02-04 Holger Banzhaf , Paul Sanzenbacher , Ulrich Baumann , J. Marius Zöllner

We conducted a simple experiment in which one pedestrian passed through a crowded area and measured the body-rotational angular velocity with commercial tablets. Then, we developed a new method for predicting crowd density by applying the…

Physics and Society · Physics 2019-03-20 Koki Nagao , Daichi Yanagisawa , Katsuhiro Nishinari