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Wide Separate 3D Convolution for Video Super Resolution

2019· article· en· W3004211383 on OpenAlexaff
Xiafei Yu, Jiying Zhao

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicAdvanced Image Processing Techniques
Canadian institutionsUniversity of Ottawa
Fundersnot available
KeywordsConvolution (computer science)Computer scienceArtificial intelligenceConvolutional neural networkComputer visionMotion estimationComputationFrame (networking)Image resolutionMotion compensationGround truthDomain (mathematical analysis)Compensation (psychology)AlgorithmArtificial neural networkMathematicsTelecommunications

Abstract

fetched live from OpenAlex

Video super-resolution (VSR) aims to recover realistic high-resolution (HR) frame from its corresponding center low-resolution (LR) frame and some neighbouring supporting frames. To utilize the extra temporal information of supporting LR frames, most of VSR methods highly rely on accurate motion estimation and compensation models to align LR frames. However, the motions between frames have no ground truth, and it is difficult to train motion estimation and compensation models. Inaccurate results will lead to artifacts and blurs, which also will damage the recovery of high-resolution frames. We propose an effective separate 3D Convolution Neural Network (CNN) with wide activation to overcome the drawback of utilizing motion estimation and compensation models. Separate 3D convolution is factorizing the 3D convolution into 2D convolution along spatial domain and 1D convolution along temporal domain, which can not only capture temporal and spatial information simultaneously but also reduce the computation complexity compared to 3D CNN.

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: Methods · Consensus signal: Methods
Teacher disagreement score0.004
Threshold uncertainty score0.008

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.000

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 head0.012
GPT teacher head0.276
Teacher spread0.264 · 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
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".

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Citations0
Published2019
Admission routes1
Has abstractyes

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