Results 21 to 30 of about 173,799 (251)

Resolution-matched shadow maps [PDF]

open access: yesACM Transactions on Graphics, 2007
This article presents resolution-matched shadow maps (RMSM), a modified adaptive shadow map (ASM) algorithm, that is practical for interactive rendering of dynamic scenes. Adaptive shadow maps, which build a quadtree of shadow samples to match the projected resolution of each shadow texel in eye space, offer a robust solution to projective
Lefohn, Aaron   +2 more
openaire   +3 more sources

A Survey on Map-Matching Algorithms [PDF]

open access: yes, 2020
12 pages, 5 figures, submitted to ADC ...
Pingfu Chao   +3 more
openaire   +4 more sources

High-Accuracy Off-Line Map-Matching of Trajectory Network Division Based on Weight Adaptation HMM

open access: yesIEEE Access, 2020
In this paper, an accurate off-line map-matching (OM2) system is designed for complex trajectory networks. It is difficult to complex trajectories input into the hidden Markov model (HMM) directly.
Yan Xie, Kai Zhou, Fang Miao, Qian Zhang
doaj   +1 more source

Research on Multi-sensor Fusion Localization for Autonomous-rail Rapid Tram

open access: yesKongzhi Yu Xinxi Jishu, 2022
Traditional positioning methods, such as GNSS (global navigation satellite system) and location base service, have large positioning error when applied in complex traffic scenarios such as like tunnels buildings and viaducts.
PAN Wenbo   +5 more
doaj   +3 more sources

Geomagnetic/inertial navigation integrated matching navigation method

open access: yesHeliyon, 2022
The accuracy of an a priori geomagnetic reference map is a significant constraint on the geomagnetic matching navigation method. Especially when the aircraft enters an unknown environment, it is impossible to accomplish the navigation task using ...
Qiong Wang   +3 more
doaj   +1 more source

Multi-track map matching

open access: yesProceedings of the 20th International Conference on Advances in Geographic Information Systems, 2012
11 pages, 8 figures, short version appears in 20th International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL GIS 2012). Extended Abstract in Proceedings of the 10th international conference on Mobile systems, applications, and services (MobiSys 2012)
Adel Javanmard   +2 more
openaire   +2 more sources

Map Matching for Urban High-Sampling-Frequency GPS Trajectories

open access: yesISPRS International Journal of Geo-Information, 2020
As a fundamental component of trajectory processing and analysis, trajectory map-matching can be used for urban traffic management and tourism route planning, among other applications.
Minshi Liu   +4 more
doaj   +1 more source

Distinctiveness maps for image matching [PDF]

open access: yesProceedings 10th International Conference on Image Analysis and Processing, 2003
Stereo correspondence is hard because different image features can look alike. We propose a measure for the ambiguity of image points that allows matching of distinctive points first and breaks down the matching task into smaller and separate subproblems.
Roberto Manduchi, Carlo Tomasi
openaire   +1 more source

Ego‐lane index‐aware vehicular localisation using the DeepRoad Network for urban environments

open access: yesIET Intelligent Transport Systems, 2021
Accurate real‐time localisation is crucial for various autonomous driving applications. Numerous methods for localization, combining various kinds of input such as data from environmental sensors, inertial measurement units, and the Global Positioning ...
Soomok Lee, Jinwoo Choi, Seung‐Woo Seo
doaj   +1 more source

Element matching in concept maps [PDF]

open access: yesProceedings of the 4th ACM/IEEE-CS joint conference on Digital libraries, 2004
Concept maps (CM) are informal, semantic, node-link conceptual graphs used to represent knowledge in a variety of applications. Algorithms that compare concept maps would be useful in supporting educational processes and in leveraging indexed digital collections of concept maps.
Byron Marshall, Therani Madhusudan
openaire   +1 more source

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