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Depth of Field Image Sequences: 3D Cuing of High Efficiency

2020· article· en· W3034493454 on OpenAlex
Fangzhou Luo, Xiao Shu, Xiaolin Wu

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.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicAdvanced Optical Imaging Technologies
Canadian institutionsMcMaster University
Fundersnot available
KeywordsComputer scienceComputer visionArtificial intelligenceRendering (computer graphics)EncoderParallaxCoding (social sciences)Depth of fieldImage qualityStereo displayLight fieldImage (mathematics)Computer graphics (images)Mathematics

Abstract

fetched live from OpenAlex

We study the ensemble of depth of field (DOF) images pertaining to continuously varying focal distance but with the position, angle and aperture of the camera fixed, called the DOF image sequence. It is shown that all member images of the ensemble can be approximated with good precision as a linear combination of few basis images. By exploiting the above newly discovered sparsity structure of DOF images, we develop a new coding scheme for DOF image sequences. The encoder works as a DOF image modeler; reciprocally the decoder acts as an ultra fast DOF image renderer. This coding scheme enables real-time generation of DOF videos that achieve realistic 3D perceptions via combined use of motion parallax and depth of field. The proposed new technique outperforms the image-based DOF rendering in image quality while having a lower complexity. The same sparsity of DOF images also inspires our design of a new computational display system that can offer multiview DOF video presentations to different users all on a common screen. Experimental results show practical values of this research in multiuser VR applications, in both aspects of content generation and presentation.

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: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.620
Threshold uncertainty score0.242

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 head0.013
GPT teacher head0.235
Teacher spread0.221 · 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

Quick stats

Citations0
Published2020
Admission routes1
Has abstractyes

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