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Record W1775416118 · doi:10.1109/dcc.2003.1194045

Image foveation based on vector quantization

2003· article· en· W1775416118 on OpenAlex
Abbas Ebrahimi-Moghadam, Shahram Shirani

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
TopicImage Processing Techniques and Applications
Canadian institutionsMcMaster University
Fundersnot available
KeywordsVector quantizationComputer visionArtificial intelligenceQuantization (signal processing)Fixation (population genetics)Computer scienceRetransmissionMathematicsPattern recognition (psychology)Transmission (telecommunications)

Abstract

fetched live from OpenAlex

Summary form only given. The perceptual resolution of vision is greatly space variant and is highest at the point of fixation and decreases rapidly away from this point. Novel unstructured and structured vector quantization (VQ) schemes are proposed to take advantage of this property of the human visual system (HVS) by providing the best image quality around the fixation point. As a foveation technique, the unstructured VQ does not enjoy progressive transmission in the sense that any request of improvement in the ROI is always replied by complete retransmission of image vectors with a higher resolution VQ scheme. The structured VQ, which is based on a residual vector quantizer (RVQ), yields an embedded progressive bit stream. The main idea for the RVQ foveation is to use more quantization stages for image vectors closer to the fixation point. This method allows the receiver to change its fixation point without any waste of transmitted information and to have multiple fixation points. This quantization strategy enables gradual image resolution change from the ROI to the background.

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: none
Teacher disagreement score0.856
Threshold uncertainty score0.190

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 head0.009
GPT teacher head0.241
Teacher spread0.231 · 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