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Record W2339672503 · doi:10.3166/ts.32.121-145

étalonnage automatique d’un système d’acquisition caméras - centrale inertielle lidar 3D

2015· article· fr· W2339672503 on OpenAlexvenueno aff
Clément Deymier, Céline Teulière, Thierry Château

Bibliographic record

VenueTraitement du signal · 2015
Typearticle
Languagefr
FieldComputer Science
TopicAdvanced Vision and Imaging
Canadian institutionsnot available
FundersAgence Nationale de la Recherche
KeywordsHumanitiesComputer sciencePhilosophy

Abstract

fetched live from OpenAlex

Cet article présente une méthode entièrement automatique d’étalonnage de systèmes d’acquisition complexes comprenant une ou plusieurs caméras, une centrale inertielle et un lidar 3D. Le principe consiste à estimer les paramètres intrinsèques et extrinsèques en mettant en correspondance des primitives détectées dans les images des caméras avec le nuage de points 3D fourni par le télémètre. Ce travail propose une formalisation mathématique unifiant les trois types de capteurs au sein d’une même fonction de vraisemblance, une stratégie pour l’évaluation rapide de contraintes entre les données images et les données télémétriques, et enfin, l’utilisation d’un algorithme de minimisation à quatre familles de paramètres qui permet une estimation simultanée de tous les paramètres d’étalonnage. Des expériences réalisées sur des systèmes d’acquisition synthétiques et réelles évaluent le domaine de convergence de l’approche proposée ainsi que ses performances en termes de précision et de robustesse en présence de bruit.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.005
Threshold uncertainty score0.015

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0020.001
Open science0.0010.002
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0040.001

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 head0.026
GPT teacher head0.254
Teacher spread0.228 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreMethods

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations2
Published2015
Admission routes1
Has abstractyes

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