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Record W2061583328 · doi:10.5244/c.20.73

Reducing Search Space for Stereo Correspondence with Graph Cuts

2006· article· en· W2061583328 on OpenAlex
Olga Veksler

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
FieldComputer Science
TopicAdvanced Vision and Imaging
Canadian institutionsWestern University
Fundersnot available
KeywordsExploitThresholdingComputer scienceRange (aeronautics)GraphCutLimitingArtificial intelligenceTheoretical computer scienceImage segmentationImage (mathematics)

Abstract

fetched live from OpenAlex

In recent years, stereo correspondence algorithms based on graph cuts have gained popularity due to the significant improvement in accuracy over the local methods. Even though there has been a noticeable progress in efficient max-flow algorithms, the computational cost for graph cut stereo is still quite heavy, especially if the disparity search range is large. In this paper, we investigate and compare several ways of limiting the disparity search range. We show that the immediately obvious ideas based on thresholding or the hierarchical approach do not work reasonably well. We do, however, find that we can utilise the results of fast local correspondence methods for disparity range reduction of the more expensive graph cuts method. The idea is to understand and exploit the ways in which the local stereo correspondence methods fail. We are able to achieve 2.8 times average speed-up with only a modest degradation in performance, 1.7 % average energy increase. 1

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: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.834
Threshold uncertainty score0.283

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 communication0.0000.001
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 head0.016
GPT teacher head0.285
Teacher spread0.269 · 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

Citations29
Published2006
Admission routes1
Has abstractyes

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