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Record W4309710446 · doi:10.1145/3565516.3565524

Assessing Advances in Real Noise Image Denoisers

2022· article· en· W4309710446 on OpenAlexaff
Clément Bled, François Pitié

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicImage and Signal Denoising Methods
Canadian institutionsTrinity College
FundersTrinity College DublinScience Foundation Ireland
KeywordsComputer scienceBenchmark (surveying)Noise reductionNoise (video)Gaussian noiseBaseline (sea)Noise measurementAdditive white Gaussian noiseGenerator (circuit theory)Artificial intelligenceImage (mathematics)White noiseComputer engineeringTelecommunicationsPower (physics)

Abstract

fetched live from OpenAlex

Recently image denoiser networks have made a number of advances to go beyond additive Gaussian white noise and deal with real noise, such as produced by digital cameras. We note that some of the performance gains reported in the state of the art could potentially be explained by an increase of network sizes. In this paper we propose to revisit some of these advances, including the synthetic noise generator and noise maps proposed in CBDNet, and re-assess them using a simple DnCNN baseline network and thus attempt at measuring how much gains can be attributed to using more modern architectures. In this work, we observe an increase of over +2 dB in denoising performance over our baseline network on the DND real world benchmark. Through this observation, we demonstrate that a smaller networks can offer competitive denoising results when correctly optimised for real world denoising.

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 categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.751
Threshold uncertainty score0.360

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.002
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 head0.026
GPT teacher head0.338
Teacher spread0.313 · 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.

The models applied no category: nothing in the taxonomy fit this work.
Study designOther design
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

Citations5
Published2022
Admission routes1
Has abstractyes

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