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Record W2259436706

Mesure du contraste local dans les images, application à la mesure de distance de visibilité par caméra embarquée

2006· article· fr· W2259436706 on OpenAlexvenueno aff
Nicolas Halltiere, Didier Aubert, Michel Jourlin

Bibliographic record

VenueTraitement du signal · 2006
Typearticle
Languagefr
FieldComputer Science
TopicAdvanced Vision and Imaging
Canadian institutionsnot available
Fundersnot available
KeywordsHumanitiesPhysicsPhilosophy
DOInot available

Abstract

fetched live from OpenAlex

A partir de la definition de la distance de visibilite meteorologique, nous definissons les distances de visibilite mobilisee et mobilisable. Cela nous conduit a proposer une methode generique de mesure de la distance de visibilite atmospherique par camera embarquee a bord d'un vehicule. Celle-ci consiste a rechercher l'objet le plus eloigne ayant un contraste d'au moins 5%. Nous detaillons dans cet article comment estimer le contraste. Pour ce faire, nous presentons une methode precise, robuste et rapide issue de la technique de segmentation d'images de Kohler. Nous montrons comment nous avons adapte cette methode a nos besoins. Pour justifier nos propos, nous comparons notre approche aux techniques de Gordon et Beghdadi. Nous appliquons le resultat a la mesure de distance de visibilite en fusionnant notre mesure de contraste local avec une information de distance obtenue par stereovision. Nous finissons par donner des exemples de mesure de distance de visibilite mobilisee sous differentes conditions meteorologiques.

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 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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.938
Threshold uncertainty score1.000

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 studies0.0000.001
Scholarly communication0.0000.001
Open science0.0010.000
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 head0.007
GPT teacher head0.247
Teacher spread0.240 · 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 teacher head, not a consensus.

Study designSimulation or modeling
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

Citations6
Published2006
Admission routes1
Has abstractyes

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