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Record W1489918042 · doi:10.5772/8940

Curvelet Based Feature Extraction

2010· book-chapter· en· W1489918042 on OpenAlex

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

VenueInTech eBooks · 2010
Typebook-chapter
Languageen
FieldEngineering
TopicAdvanced Image Fusion Techniques
Canadian institutionsUniversity of WindsorUniversity of British Columbia
Fundersnot available
KeywordsCurveletPattern recognition (psychology)Artificial intelligenceFeature extractionExtraction (chemistry)Feature (linguistics)Computer scienceChromatographyChemistryPhilosophyWavelet transformLinguisticsWavelet

Abstract

fetched live from OpenAlex

In this chapter, newly developed curvelet transform has been presented as a new tool for feature extraction from facial images. Various algorithms are discussed along with relevant experimental results as reported in some recent works on face recognition. Looking at the results presented in tables 1, 2 and 3, we can infer that curvelet is not only a successful feature descriptor, but is superior to many existing wavelet-based techniques. Results for only one standard database (ORL) are listed here; nevertheless, work has been done on other standard databases like, FERET, YALE, Essex Grimace, Georgia-Tech and Japanese facial expression datasets. From the results presented in all these datasets prove the superiority of curvelets over wavelets for the application of face recognition. Curvelet features thus extracted from faces are also found to be robust against noise, significant amount of illumination variation, facial details variation and extreme expression changes. The works on face recognition using curvelet transform that exist in literature are not yet complete and do not fully understand the capability of curvelet transform for face recognition; hence, there is much scope of improvement in terms of both recognition accuracy and curvelet-based methodology.

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 categoriesMeta-epidemiology (narrow), Research integrity
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.528
Threshold uncertainty score1.000

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 communication0.0000.000
Open science0.0000.000
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0010.000

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 head0.010
GPT teacher head0.244
Teacher spread0.234 · 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