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Record W4246250782 · doi:10.32920/ryerson.14655897.v1

Adaptive Exposure Fusion for HDR Imaging

2021· preprint· en· W4246250782 on OpenAlexaff
Sidhdharthkumar Patel

Bibliographic record

Venuenot available
Typepreprint
Languageen
FieldComputer Science
TopicImage Enhancement Techniques
Canadian institutionsToronto Metropolitan University
Fundersnot available
KeywordsSequence (biology)FusionComputer scienceArtificial intelligenceMetric (unit)Multiple exposureComputer visionImage fusionImage (mathematics)Pattern recognition (psychology)Engineering

Abstract

fetched live from OpenAlex

HDR images are usually generated by fusing sequence of images captured with variable exposure time. Exposure Fusion is a technique that directly fuses the exposure shots into displayable image. This thesis proposes a novel Exposure Fusion algorithm that directly fuses exposure bracketed shots into a displayable image. Most techniques targeted for direct fusion do not have an effective exposure control mechanism and are only designed for exposure sequence containing adequate number of exposure shots. The proposed algorithm offers a novel approach that adaptively adjusts its parameter for the best viewing experience even for exposure sequence that do not contain adequate number exposure shots. An online user survey showed that the proposed method gave consistent superior results when compare with other methods of similar nature. The survey results were also compared against state of the art evaluation metrics (TMQI and HDR-VDP) and the survey results contradicted the evaluation metric.

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)0.000
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: Other design · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.824
Threshold uncertainty score0.978

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 science0.0010.004
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 head0.023
GPT teacher head0.276
Teacher spread0.253 · 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

Citations0
Published2021
Admission routes1
Has abstractyes

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