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Record W2121457600

Reducing multipath effects in vehicle localization by fusing GPS with machine vision

2009· article· en· W2121457600 on OpenAlex
Andrew Rae, Otman Basir

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueInternational Conference on Information Fusion · 2009
Typearticle
Languageen
FieldEngineering
TopicIndoor and Outdoor Localization Technologies
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsGlobal Positioning SystemComputer scienceMultipath propagationComputer visionKalman filterSimultaneous localization and mappingArtificial intelligenceMachine visionVisibilityMap matchingIntelligent transportation systemReal-time computingAssisted GPSMobile robotEngineeringRobotTelecommunicationsGeography
DOInot available

Abstract

fetched live from OpenAlex

Vehicle localization is an important component of Intelligent Transportation Systems and telematics applications. Localization systems typically rely on Global Positioning System (GPS) technology; however, the accuracy and reliability of GPS are degraded in urban environments due to satellite visibility and multipath effects. We propose to use a Kalman filter to fuse data from a GPS receiver and a machine vision system to position the vehicle with respect to objects in its environment. Data association is needed to identify the detected objects, and to identify the road driven by the vehicle. For this purpose we employMultiple Hypothesis Tracking to consider multiple data association hypotheses simultaneously. Experimental results show that using machine vision reduces the effect that GPS measurement errors have on localization accuracy. Vision also improves the identification of the road being driven by the vehicle, which is important for the problem of map matching in vehicle localization.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.663
Threshold uncertainty score0.599

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.006
GPT teacher head0.228
Teacher spread0.222 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it