A fine-grained navigation network construction method for urban environments

Article Remote Sensing

Road extraction in remote sensing data: A survey

Ziyi Chen et al.

Summary: This paper provides a comprehensive survey and analysis of road extraction methods using 2D and 3D data. The authors classify the literature and present the research findings from the past decade. In addition to methodologies, the paper also reviews the aspects of data and discusses future challenges and trends.

INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION (2022)

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Article Robotics

Navigable Space Construction from Sparse Noisy Point Clouds

Zheng Chen et al.

Summary: The framework presented in the study focuses on creating navigable space from cluttered point clouds generated by low-end sensors with high sparsity and noise. The method involves incrementally seeding and creating local convex regions along the robot's trajectory, and reconstructing a dense version of the point cloud through a map point regulation process. Results show small volume loss compared to ground truth and high efficiency for real-time navigation computation.

IEEE ROBOTICS AND AUTOMATION LETTERS (2021)

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Article Computer Science, Information Systems

Automatically Tracking Road Centerlines from Low-Frequency GPS Trajectory Data

Banqiao Chen et al.

Summary: High-quality digital road maps are essential for location-based services and smart city applications. Generating maps from massive GPS trajectory data poses challenges due to low sampling rates and multi-level disparity problems. The presented GPS trajectory data-based road tracking algorithm, with an active contour-based road centerline refinement algorithm, can produce higher quality maps with fewer zig-zag roads.

ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION (2021)

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Article Computer Science, Information Systems

Defining a Model for Integrating Indoor and Outdoor Network Data to Support Seamless Navigation Applications

Alexis Richard C. Claridades et al.

Summary: Current data models do not fully reflect the continuity of spaces, leading to oversimplification in indoor-outdoor connections and limitations in location-based applications.

ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION (2021)

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Article Chemistry, Analytical