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Place recognition is one of the most challenging problems in computer vision, and has become a key part in mobile robotics and autonomous driving applications for performing loop closure in visual SLAM systems. Moreover, the difficulty of…

Computer Vision and Pattern Recognition · Computer Science 2015-05-28 Ruben Gomez-Ojeda , Manuel Lopez-Antequera , Nicolai Petkov , Javier Gonzalez-Jimenez

In an intelligent transportation system, the key problem of traffic forecasting is how to extract periodic temporal dependencies and complex spatial correlations. Current state-of-the-art methods for predicting traffic flow are based on…

Machine Learning · Computer Science 2022-03-01 Zichuan Liu , Rui Zhang , Chen Wang , Zhu Xiao , Hongbo Jiang

In a Simultaneous Localization and Mapping (SLAM) system, a loop-closure can eliminate accumulated errors, which is accomplished by Visual Place Recognition (VPR), a task that retrieves the current scene from a set of pre-stored sequential…

Computer Vision and Pattern Recognition · Computer Science 2022-02-09 Nie Jiwei , Feng Joe-Mei , Xue Dingyu , Pan Feng , Liu Wei , Hu Jun , Cheng Shuai

Deep convolutional neural networks have been successfully applied to image classification tasks. When these same networks have been applied to image retrieval, the assumption has been made that the last layers would give the best…

Computer Vision and Pattern Recognition · Computer Science 2015-05-01 Joe Yue-Hei Ng , Fan Yang , Larry S. Davis

Deep neural networks are being increasingly used for short-term traffic flow prediction, which can be generally categorized as convolutional (CNNs) or graph neural networks (GNNs). CNNs are preferable for region-wise traffic prediction by…

Physics and Society · Physics 2021-10-12 Wei Zeng , Chengqiao Lin , Kang Liu , Juncong Lin , Anthony K. H. Tung

In this paper we describe a video surveillance system able to detect traffic events in videos acquired by fixed videocameras on highways. The events of interest consist in a specific sequence of situations that occur in the video, as for…

Computer Vision and Pattern Recognition · Computer Science 2019-09-27 Matteo Tiezzi , Stefano Melacci , Marco Maggini , Angelo Frosini

Traffic signs are important in communicating information to drivers. Thus, comprehension of traffic signs is essential for road safety and ignorance may result in road accidents. Traffic sign detection has been a research spotlight over the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Mayura Manawadu , Udaya Wijenayake

Learning powerful discriminative features for remote sensing image scene classification is a challenging computer vision problem. In the past, most classification approaches were based on handcrafted features. However, most recent…

Computer Vision and Pattern Recognition · Computer Science 2019-02-22 Jun Li , Daoyu Lin , Yang Wang , Guangluan Xu , Chibiao Ding

Although traffic sign detection has been studied for years and great progress has been made with the rise of deep learning technique, there are still many problems remaining to be addressed. For complicated real-world traffic scenes, there…

Computer Vision and Pattern Recognition · Computer Science 2023-04-06 Yuan Yuan , Zhitong Xiong , Qi Wang

In this work, we tackle the problem of car license plate detection and recognition in natural scene images. Inspired by the success of deep neural networks (DNNs) in various vision applications, here we leverage DNNs to learn high-level…

Computer Vision and Pattern Recognition · Computer Science 2016-01-22 Hui Li , Chunhua Shen

This paper investigates how working of Convolutional Neural Network (CNN) can be explained through visualization in the context of machine perception of autonomous vehicles. We visualize what type of features are extracted in different…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Abhishek Mukhopadhyay , Imon Mukherjee , Pradipta Biswas

Scene parsing is an important and challenging prob- lem in computer vision. It requires labeling each pixel in an image with the category it belongs to. Tradition- ally, it has been approached with hand-engineered features from color…

Machine Learning · Statistics 2014-11-18 Rahul Mohan

An understanding and classification of driving scenarios are important for testing and development of autonomous driving functionalities. Machine learning models are useful for scenario classification but most of them assume that data…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Lakshman Balasubramanian , Friedrich Kruber , Michael Botsch , Ke Deng

We propose an object detection system that relies on a multi-region deep convolutional neural network (CNN) that also encodes semantic segmentation-aware features. The resulting CNN-based representation aims at capturing a diverse set of…

Computer Vision and Pattern Recognition · Computer Science 2015-09-25 Spyros Gidaris , Nikos Komodakis

This paper presents an approach for semantic place categorization using data obtained from RGB cameras. Previous studies on visual place recognition and classification have shown that, by considering features derived from pre-trained…

Robotics · Computer Science 2018-05-30 Massimiliano Mancini , Samuel Rota Bulò , Elisa Ricci , Barbara Caputo

Reading text in the wild is a challenging task in the field of computer vision. Existing approaches mainly adopted Connectionist Temporal Classification (CTC) or Attention models based on Recurrent Neural Network (RNN), which is…

Computer Vision and Pattern Recognition · Computer Science 2017-09-14 Yunze Gao , Yingying Chen , Jinqiao Wang , Hanqing Lu

In robotics, Visual Place Recognition is a continuous process that receives as input a video stream to produce a hypothesis of the robot's current position within a map of known places. This task requires robust, scalable, and efficient…

Computer Vision and Pattern Recognition · Computer Science 2022-07-11 Riccardo Mereu , Gabriele Trivigno , Gabriele Berton , Carlo Masone , Barbara Caputo

The image classification problem has been deeply investigated by the research community, with computer vision algorithms and with the help of Neural Networks. The aim of this paper is to build an image classifier for satellite images of…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 Jonas Bokstaller , Yihang She , Zhehan Fu , Tommaso Macrì

Traffic scene recognition, which requires various visual classification tasks, is a critical ingredient in autonomous vehicles. However, most existing approaches treat each relevant task independently from one another, never considering the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-06 Younkwan Lee , Jihyo Jeon , Jongmin Yu , Moongu Jeon

Deep Convolutional Neural Network (CNN) is a special type of Neural Networks, which has shown exemplary performance on several competitions related to Computer Vision and Image Processing. Some of the exciting application areas of CNN…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Asifullah Khan , Anabia Sohail , Umme Zahoora , Aqsa Saeed Qureshi