MétaCan
Menu
Back to cohort
Record W2123661622 · doi:10.1109/ccece.2008.4564752

The 2-directional wavelet transform: Theory and implementation

2008· article· en· W2123661622 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.
venuePublished in a venue whose home country is Canada.

Bibliographic record

VenueConference proceedings - Canadian Conference on Electrical and Computer Engineering · 2008
Typearticle
Languageen
FieldEngineering
TopicAdvanced Image Fusion Techniques
Canadian institutionsMemorial University of Newfoundland
Fundersnot available
KeywordsWavelet transformStationary wavelet transformSecond-generation wavelet transformWaveletHarmonic wavelet transformContourletMathematicsDiscrete wavelet transformHigh-pass filterFilter bankArtificial intelligenceWavelet packet decompositionPattern recognition (psychology)AlgorithmFilter (signal processing)Computer scienceComputer visionLow-pass filter

Abstract

fetched live from OpenAlex

The 2-directional wavelet transform is an image representation which separates the spectrum of an image into a lowpass subband, a horizontal highpass subband and a vertical high-pass subband. Each of the decomposed highpass subbands, corresponding to pairwise trapezoidal regions of the spectrum of an original image, is critically sampled to a rectangular shaped coefficient image in the spatial domain. This paper illustrates how an innovative method can be generated by the creative combination of filter banks, integer resampling, and frequency shifting. The proposed 2-directional wavelet transform achieves critical sampling and perfect reconstruction properties. The new transform is an extension of the traditional wavelet transform, and is also the fundamental stage of a new method called the nonredundant contourlet transform (NRCT) developed in a companion paper. Experimental results are presented to demonstrate the potential of the 2- directional wavelet transform.

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 score0.944
Threshold uncertainty score0.818

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 integrity0.0000.000
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 head0.008
GPT teacher head0.206
Teacher spread0.197 · 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