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Record W2113109498 · doi:10.1109/19.893281

Visual measurement of orientation error for a mobile robot

2000· article· en· W2113109498 on OpenAlex
S.Y.T. Lang, Yili Fu

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

VenueIEEE Transactions on Instrumentation and Measurement · 2000
Typearticle
Languageen
FieldComputer Science
TopicRobotic Path Planning Algorithms
Canadian institutionsNational Research Council Canada
Fundersnot available
KeywordsMobile robotOrientation (vector space)Computer scienceComputer visionArtificial intelligenceRobotMathematicsGeometry

Abstract

fetched live from OpenAlex

A vision system is developed for a mobile cleaning robot to detect orientation, which can be used alone or with predicted motion to reduce localization error. By exploiting straight line features found in ceilings with suspended tiles, orientation is found in realtime with a desktop PC implementation. Simple techniques are applied to achieve realtime performance in a system which is suitable for implementation in an embedded system or DSP. Edge strengths and directions are first calculated. Points potentially belonging to line features are then found by applying a dynamically calculated global threshold designed to retain a fixed percentage of edge points, and the application of an edge thinning operation which implements a fast peak detection algorithm. The remaining edge points are then used to determine an initial orientation estimate. Orientations are found by detecting four peaks separated by 90/spl deg/ intervals in a contour-direction histogram. The orientation value is further refined by rejecting points which are not close to the main orientation estimate, and by removing points which are part of very short lines resulting from texture patterns rather than long straight line features. The theoretical basis, system design and prototype implementation, testing, and evaluation are described. The experimental results of integrating a prototype system with an experimental mobile robot are included.

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)0.001
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: Other design · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.925
Threshold uncertainty score0.659

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
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 head0.049
GPT teacher head0.294
Teacher spread0.245 · 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