Results 1 to 10 of about 2,322 (164)

HMM-Based Map Matching and Spatiotemporal Analysis for Matching Errors with Taxi Trajectories

open access: yesISPRS International Journal of Geo-Information, 2023
Map matching of trajectory data has wide applications in path planning, traffic flow analysis, and intelligent driving. The process of map matching involves matching GPS trajectory points to roads in a roadway network, thereby converting a trajectory ...
Lin Qu   +4 more
doaj   +3 more sources

Map-Matching Error Identification in the Absence of Ground Truth

open access: yesISPRS International Journal of Geo-Information, 2022
Map-matching of trajectory data has widespread applications in vehicle tracking, traffic flow analysis, route planning, and intelligent transportation systems.
Subhrasankha Dey   +2 more
doaj   +3 more sources

Enhanced Map-Matching Algorithm with a Hidden Markov Model for Mobile Phone Positioning

open access: yesISPRS International Journal of Geo-Information, 2017
Numerous map-matching techniques have been developed to improve positioning, using Global Positioning System (GPS) data and other sensors. However, most existing map-matching algorithms process GPS data with high sampling rates, to achieve a higher ...
An Luo, Shenghua Chen, Bin Xv
doaj   +3 more sources

GPS/MEMS INS Data Fusion and Map Matching in Urban Areas

open access: yesSensors, 2013
This paper presents an evaluation of the map-matching scheme of an integrated GPS/INS system in urban areas. Data fusion using a Kalman filter and map matching are effective approaches to improve the performance of navigation system applications based on
Thanh-Trung Duong   +3 more
doaj   +3 more sources

AUTONOMOUS VEHICLES LOCALISATION BASED ON SEMANTIC MAP MATCHING METHOD [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
In autonomous driving systems, a positioning method that can be used in scenarios with no satellite signals or long signal interruptions is a must. In this paper, we address the problems in map construction methods and map matching methods in scenes ...
H. Huang, D. Yu, J. Yang, X. Liu
doaj   +1 more source

Survey on vehicle map matching techniques

open access: yesCAAI Transactions on Intelligence Technology, 2021
With the development of location‐based services and Big data technology, vehicle map matching techniques are growing rapidly, which is the fundamental techniques in the study of exploring global positioning system (GPS) data.
Zhenfeng Huang   +5 more
doaj   +1 more source

A map matching algorithm based on modified hidden Markov model considering time series dependency over larger time span

open access: yesHeliyon, 2023
With the advancement of geopositioning systems and mobile devices, much research with geopositioning data are currently ongoing. Along with the research applications, map matching is a technology that infers the actual position of error-prone trajectory ...
Ha Yoon Song, Jae Ho Lee
doaj   +1 more source

SAD Stereo Matching Algorithm Combining Edge Features [PDF]

open access: yesJisuanji gongcheng, 2020
In order to ensure the stereo matching efficiency of SAD algorithm and improve the matching accuracy,this paper proposes an Edge-Gray algorithm with edge features.The edge feature map is obtained by edge calculation.During the matching process,the size ...
ZHANG Yifei, LI Xinfu, TIAN Xuedong
doaj   +1 more source

CONTINUOUS 3D-LABEL SEMI-GLOBAL MATCHING FOR SATELLITE STEREO [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
We present Continuous 3D-Label Semi-Global Matching (CoSGM), a new dense stereo matching algorithm for satellite stereo. CoSGM overparameterizes the disparity map as an array of local planes, so it can regularize the first-order smoothness of the ...
S. Patil, Q. Guo
doaj   +1 more source

Dual-mode Map Matching Algorithm Based on Three Evidences DS Theory [PDF]

open access: yesJisuanji gongcheng, 2018
As DS theory has too little evidence,it may lead to an unstable matching results problem for map matching algorithm.Based on the DS theory,this paper proposes a three evidences DS theory and dual mode map matching algorithm.It uses the direction,distance,
WANG Ke,LI Peng,JIN Yu,LIU Yu
doaj   +1 more source

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