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This study developed a traffic sign detection and recognition algorithm based on the RetinaNet. Two main aspects were revised to improve the detection of traffic signs: image cropping to address the issue of large image and small traffic…

Computer Vision and Pattern Recognition · Computer Science 2019-11-14 Meixin Zhu , Jingyun Hu , Ziyuan Pu , Zhiyong Cui , Liangwu Yan , Yinhai Wang

Many applications such as autonomous navigation, urban planning and asset monitoring, rely on the availability of accurate information about objects and their geolocations. In this paper we propose to automatically detect and compute the…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 Vladimir A. Krylov , Eamonn Kenny , Rozenn Dahyot

In this paper we propose an end-to-end learnable approach that detects static urban objects from multiple views, re-identifies instances, and finally assigns a geographic position per object. Our method relies on a Graph Neural Network…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Ahmed Samy Nassar , Stefano D'Aronco , Sébastien Lefèvre , Jan D. Wegner

Localization of street objects from images has gained a lot of attention in recent years. We propose an approach to improve asset geolocation from street view imagery by enhancing the quality of the metadata associated with the images using…

Machine Learning · Computer Science 2021-08-16 Chao-Jung Liu , Matej Ulicny , Michael Manzke , Rozenn Dahyot

Lane detection is to detect lanes on the road and provide the accurate location and shape of each lane. It severs as one of the key techniques to enable modern assisted and autonomous driving systems. However, several unique properties of…

Computer Vision and Pattern Recognition · Computer Science 2018-07-06 Ze Wang , Weiqiang Ren , Qiang Qiu

Traffic signs are essential map features globally in the era of autonomous driving and smart cities. To develop accurate and robust algorithms for traffic sign detection and classification, a large-scale and diverse benchmark dataset is…

Computer Vision and Pattern Recognition · Computer Science 2020-05-08 Christian Ertler , Jerneja Mislej , Tobias Ollmann , Lorenzo Porzi , Gerhard Neuhold , Yubin Kuang

Urban informatics explore data science methods to address different urban issues intensively based on data. The large variety and quantity of data available should be explored but this brings important challenges. For instance, although…

Computer Vision and Pattern Recognition · Computer Science 2017-07-17 Eric Keiji , Gabriel Ferreira , Claudio Silva , Roberto M. Cesar

Navigation services utilized by autonomous vehicles or ordinary users require the availability of detailed information about road-related objects and their geolocations, especially at road intersections. However, these road intersections…

Computer Vision and Pattern Recognition · Computer Science 2019-09-18 Chaoquan Zhang , Hongchao Fan , Wanzhi Li , Bo Mao , Xuan Ding

Traffic sign recognition is a well-researched problem in computer vision. However, the state of the art methods works only for frequent sign classes, which are well represented in training datasets. We consider the task of rare traffic sign…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Anton Konushin , Boris Faizov , Vlad Shakhuro

Street-view imagery provides us with novel experiences to explore different places remotely. Carefully calibrated street-view images (e.g. Google Street View) can be used for different downstream tasks, e.g. navigation, map features…

Computer Vision and Pattern Recognition · Computer Science 2023-07-14 Wenmiao Hu , Yichen Zhang , Yuxuan Liang , Yifang Yin , Andrei Georgescu , An Tran , Hannes Kruppa , See-Kiong Ng , Roger Zimmermann

Object detection and object tracking are usually treated as two separate processes. Significant progress has been made for object detection in 2D images using deep learning networks. The usual tracking-by-detection pipeline for object…

Computer Vision and Pattern Recognition · Computer Science 2019-02-06 Chenge Li , Gregory Dobler , Xin Feng , Yao Wang

Deep networks thrive when trained on large scale data collections. This has given ImageNet a central role in the development of deep architectures for visual object classification. However, ImageNet was created during a specific period in…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Nizar Massouh , Francesca Babiloni , Tatiana Tommasi , Jay Young , Nick Hawes , Barbara Caputo

We propose a novel and pragmatic framework for traffic scene perception with roadside cameras. The proposed framework covers a full-stack of roadside perception pipeline for infrastructure-assisted autonomous driving, including object…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Zhengxia Zou , Rusheng Zhang , Shengyin Shen , Gaurav Pandey , Punarjay Chakravarty , Armin Parchami , Henry X. Liu

Road unevenness significantly impacts the safety and comfort of traffic participants, especially vulnerable groups such as cyclists and wheelchair users. To train models for comprehensive road surface assessments, we introduce…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Alexandra Kapp , Edith Hoffmann , Esther Weigmann , Helena Mihaljević

Robust localization is the cornerstone of autonomous driving, especially in challenging urban environments where GPS signals suffer from multipath errors. Traditional localization approaches rely on high-definition (HD) maps, which consist…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Hang Wu , Zhenghao Zhang , Siyuan Lin , Xiangru Mu , Qiang Zhao , Ming Yang , Tong Qin

Is it possible to build a system to determine the location where a photo was taken using just its pixels? In general, the problem seems exceptionally difficult: it is trivial to construct situations where no location can be inferred. Yet…

Computer Vision and Pattern Recognition · Computer Science 2017-02-09 Tobias Weyand , Ilya Kostrikov , James Philbin

This paper proposes a novel method for geo-tracking, i.e. continuous metric self-localization in outdoor environments by registering a vehicle's sensor information with aerial imagery of an unseen target region. Geo-tracking methods offer…

Computer Vision and Pattern Recognition · Computer Science 2022-09-12 Florian Fervers , Sebastian Bullinger , Christoph Bodensteiner , Michael Arens , Rainer Stiefelhagen

We present here, a novel network architecture called MergeNet for discovering small obstacles for on-road scenes in the context of autonomous driving. The basis of the architecture rests on the central consideration of training with less…

Computer Vision and Pattern Recognition · Computer Science 2018-03-20 Krishnam Gupta , Syed Ashar Javed , Vineet Gandhi , K. Madhava Krishna

In the past decade, Convolutional Neural Networks (CNNs) have been demonstrated successful for object detections. However, the size of network input is limited by the amount of memory available on GPUs. Moreover, performance degrades when…

Computer Vision and Pattern Recognition · Computer Science 2017-06-28 Zibo Meng , Xiaochuan Fan , Xin Chen , Min Chen , Yan Tong

Today's autonomous vehicles rely extensively on high-definition 3D maps to navigate the environment. While this approach works well when these maps are completely up-to-date, safe autonomous vehicles must be able to corroborate the map's…

Computer Vision and Pattern Recognition · Computer Science 2016-12-09 Ari Seff , Jianxiong Xiao
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