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Record W2144700814 · doi:10.1109/ist.2012.6295496

Image de-noising based on Hodrick-Prescott filtering

2012· article· en· W2144700814 on OpenAlexaff
Gabriel Thomas

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicImage and Signal Denoising Methods
Canadian institutionsUniversity of Manitoba
Fundersnot available
KeywordsNoise (video)Image (mathematics)Computer scienceMultiplicative noiseHodrick–Prescott filterWiener filterAlgorithmImage restorationWaveletNoise measurementMedian filterSeries (stratigraphy)Image noiseArtificial intelligenceImage processingNoise reductionBusiness cycle

Abstract

fetched live from OpenAlex

It is of great interest to effectively deal with noise that imaging sensors or external sources may have introduced to a digital image. During the years, de-noising techniques have been proposed to attenuate additive random noise but without a doubt it can be said that no algorithm exist that can completely eliminate it. Unfortunately this paper will not make such a claim but it changes the approach point of view on how to de-noise an image that has been corrupted by additive noise. The problem is viewed as having an original image represented by a stochastic trend component added to a random irregular term but in a similar way to what has been done by Hodrick and Prescott in the area of economics to study rapid fluctuations i.e. noise, that are too rapid with respect to a slower trend in a time series i.e. image. The method qualitatively produced good results when comparing it to wavelet based and adaptive Wiener filtering techniques. The proposed technique has also shown to be robust for the case of multiplicative noise.

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)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.002
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.001

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 head0.294
Teacher spread0.268 · 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 designSimulation or modeling
Domainnot available
GenreEmpirical

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".

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Citations0
Published2012
Admission routes1
Has abstractyes

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