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Image vectorization is a process to convert a raster image into a scalable vector graphic format. Objective is to effectively remove the pixelization effect while representing boundaries of image by scaleable parameterized curves. We…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Ho Law , Sung Ha Kang

Remote sensing is extensively used in cartography. As transportation networks grow and change, extracting roads automatically from satellite images is crucial to keep maps up-to-date. Synthetic Aperture Radar satellites can provide high…

Computer Vision and Pattern Recognition · Computer Science 2018-08-17 Corentin Henry , Seyed Majid Azimi , Nina Merkle

Vector graphics are widely used in graphical designs and have received more and more attention. However, unlike raster images which can be easily obtained, acquiring high-quality vector graphics, typically through automatically converting…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Haokun Zhu , Juang Ian Chong , Teng Hu , Ran Yi , Yu-Kun Lai , Paul L. Rosin

Interconnected road lanes are a central concept for navigating urban roads. Currently, most autonomous vehicles rely on preconstructed lane maps as designing an algorithmic model is difficult. However, the generation and maintenance of such…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Robin Karlsson , David Robert Wong , Simon Thompson , Kazuya Takeda

Creating high definition maps that contain precise information of static elements of the scene is of utmost importance for enabling self driving cars to drive safely. In this paper, we tackle the problem of drivable road boundary extraction…

Computer Vision and Pattern Recognition · Computer Science 2020-12-23 Justin Liang , Namdar Homayounfar , Wei-Chiu Ma , Shenlong Wang , Raquel Urtasun

We present a fully automatic approach to video colorization with self-regularization and diversity. Our model contains a colorization network for video frame colorization and a refinement network for spatiotemporal color refinement. Without…

Computer Vision and Pattern Recognition · Computer Science 2019-08-06 Chenyang Lei , Qifeng Chen

For autonomous navigation, accurate localization with respect to a map is needed. In urban environments, infrastructure such as buildings or bridges cause major difficulties to Global Navigation Satellite Systems (GNSS) and, despite…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Maxime Noizet , Philippe Xu , Philippe Bonnifait

This paper presents the preliminary findings of a semi-supervised segmentation method for extracting roads from sattelite images. Artificial Neural Networks and image segmentation methods are among the most successful methods for extracting…

Computer Vision and Pattern Recognition · Computer Science 2022-12-27 Ahmet Alp Kindiroglu , Metehan Yalçın , Furkan Burak Bağcı , Mahiye Uluyağmur Öztürk

Vectorized maps are indispensable for precise navigation and the safe operation of autonomous vehicles. Traditional methods for constructing these maps fall into two categories: offline techniques, which rely on expensive, labor-intensive…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Quanxin Zheng , Miao Fan , Shengtong Xu , Linghe Kong , Haoyi Xiong

In contrast to the well-established technique of rasterization, vectorization of images poses a significant challenge in the field of computer graphics. Recent learning-based methods for converting raster images to vector formats frequently…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Qi Bing , Chaoyi Zhang , Weidong Cai

Existing lane-level simulation road network generation is labor-intensive, resource-demanding, and costly due to the need for large-scale data collection and manual post-editing. To overcome these limitations, we propose automatically…

Multimedia · Computer Science 2025-09-04 Liang Xie , Wenke Huang

We present a scalable approach for semi-supervised learning on graph-structured data that is based on an efficient variant of convolutional neural networks which operate directly on graphs. We motivate the choice of our convolutional…

Machine Learning · Computer Science 2017-02-23 Thomas N. Kipf , Max Welling

In this paper, we initiate the study of the vertex coloring problem of a graph in the semi streaming model. In this model, the input graph is defined by a stream of edges, arriving in adversarial order and any algorithm must process the…

Data Structures and Algorithms · Computer Science 2018-07-26 Suman Kalyan Bera , Prantar Ghosh

This paper presents a novel approach to computing vector road maps from satellite remotely sensed images, building upon a well-defined Patched Line Segment (PaLiS) representation for road graphs that holds geometric significance. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Jiakun Xu , Bowen Xu , Gui-Song Xia , Liang Dong , Nan Xue

Charts are an excellent way to convey patterns and trends in data, but they do not facilitate further modeling of the data or close inspection of individual data points. We present a fully automated system for extracting the numerical…

Computer Vision and Pattern Recognition · Computer Science 2018-10-10 Mathieu Cliche , David Rosenberg , Dhruv Madeka , Connie Yee

Editing raster text is a promising but challenging task. We propose to apply text vectorization for the task of raster text editing in display media, such as posters, web pages, or advertisements. In our approach, instead of applying image…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Wataru Shimoda , Daichi Haraguchi , Seiichi Uchida , Kota Yamaguchi

Random networks are increasingly used to analyse complex transportation networks, such as airline routes, roads and rail networks. So far, this research has been focused on describing the properties of the networks with the help of random…

Physics and Society · Physics 2017-09-19 Jürgen Hackl , Bryan T. Adey

Path planning plays a crucial role in various autonomy applications, and RRT* is one of the leading solutions in this field. In this paper, we propose the utilization of vertex-based networks to enhance the sampling process of RRT*, leading…

Artificial Intelligence · Computer Science 2023-07-17 Yuanhang Zhang , Jundong Liu

To reduce the reliance on high-definition (HD) maps, a growing trend in autonomous driving is leveraging onboard sensors to generate vectorized maps online. However, current methods are mostly constrained by processing only single-frame…

Robotics · Computer Science 2025-03-18 Jiagang Chen , Liangliang Pan , Shunping Ji , Ji Zhao , Zichao Zhang

Real-world networks are often complex and large with millions of nodes, posing a great challenge for analysts to quickly see the big picture for more productive subsequent analysis. We aim at facilitating exploration of node-attributed…

Social and Information Networks · Computer Science 2015-12-21 Jia Wang , Kevin Chen-Chuan Chang , Hari Sundaram