Title
Real-Time Semantic Plane Reconstruction on a Monocular Drone Using Sparse Fusion
Abstract
A semantic map, which can provide important data to facilitate a drone's understanding to the environment, is critical for a fully autonomous drone. However, recent methods for producing such a map implemented on small drones that use low-/middle-grade processors and graphics processing units can hardly achieve real-time performance. In addition, few existing methods can reconstruct semantic planes based on a sparse depth map, which can greatly reduce computational load while encountering challenges in semantic reconstruction. To address this problem, this paper presents a novel on-board approach, called sparse fusion, which demonstrates real-time reconstruction of a semantic plane on a self-designed small drone. The approach combines the sparse depth map derived from a visual–inertial simultaneous localization and mapping with the semantic labels derived from a convolutional neural network for each frame using sparse fusion. Our proposed local plane optimization function greatly improves the accuracy of the semantic plane. Experimental results on various scenarios demonstrate that our sparse fusion module running on the drone platform can update the semantic plane within 1 ms, which is faster and achieves greater accuracy than the state-of-the-art real-time semantic reconstruction method. We also conducted experiments in real environments to demonstrate the performance of our method.
Year
DOI
Venue
2019
10.1109/TVT.2019.2923676
IEEE Transactions on Vehicular Technology
Keywords
Field
DocType
Semantics,Simultaneous localization and mapping,Drones,Cameras,Feature extraction,Optimization
Graphics,Computer vision,Computer science,Convolutional neural network,Feature extraction,Electronic engineering,Artificial intelligence,Drone,Depth map,Simultaneous localization and mapping,Monocular,Semantics
Journal
Volume
Issue
ISSN
68
8
0018-9545
Citations 
PageRank 
References 
0
0.34
0
Authors
8
Name
Order
Citations
PageRank
Yuanjie Dang181.88
Peng Chen231.76
Ronghua Liang337642.60
Chong Huang483.17
Yuesheng Tang500.34
Tianwei Yu613613.71
Xin Yang722825.10
Kwang-Ting Cheng85755513.90