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Record W3204967528

A facial animation driven by X-ray microbeam data.

2000· dissertation· en· W3204967528 on OpenAlexfundno aff
November Scheidt

Bibliographic record

VenueoURspace (University of Regina) · 2000
Typedissertation
Languageen
FieldComputer Science
TopicAI in cancer detection
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsMicrobeamComputer graphics (images)AnimationComputer scienceX-rayComputer facial animationComputer animationPhysicsOptics
DOInot available

Abstract

fetched live from OpenAlex

In computer facial animation, consecutive frames are generated to create motion, or expression, on a com-puter modelled face. One facial animation technique, the performance-based animation technique, uses hu-man data, such as a video recording that tracks the features of the face, to drive an animation. The present document describes a performance-based implementation called CASSI or Computer Animated Speech SIm-ulator. CASSI uses human data in the form of 2D X-ray microbeam (XRMB) data to drive the animation of a 3D facial model. The 2D X-ray microbeam data contain coordinate values tracking the side view movement of eight gold pellets placed as follows: one on the upper lip, one on the lower lip, four on the tongue, and two on the jaw. The XRMB data track the movement of the pellets attached to human subjects who are performing speech-related tasks. The 3D facial model is an augmentation of the parameterized facial model developed by Parke. CASSI was implemented as three versions: CASSI 1.0, CASSI 2.0, and CASSI 2.1. CASSI 1.0 was designed to integrate the XRMB data les with Parke's facial model. This integration included initializing the chin, palate, tongue, teeth, and lips of Parke's model, and animating the model, particularly, rotating the jaw, with the XRMB data. The emphasis of CASSI 2.0 was on lip movement, in particular, on rounding

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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.867
Threshold uncertainty score1.000

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 science0.0020.000
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 head0.011
GPT teacher head0.220
Teacher spread0.209 · 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.

Study designNot applicable
Domainnot available
GenreOther

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
Published2000
Admission routes1
Has abstractyes

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