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Fusing Pressure-Sensitive Mat Data with Video through Multi-Modal Registration

2021· article· en· W3173710105 on OpenAlex

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
TopicRobotics and Sensor-Based Localization
Canadian institutionsCarleton University
Fundersnot available
KeywordsArtificial intelligenceComputer visionImage registrationComputer scienceLandmarkRGB color modelOffset (computer science)Computer graphics (images)Image (mathematics)

Abstract

fetched live from OpenAlex

We have collected a multi-modal neonatal patient dataset suitable for development of noncontact continuous monitoring techniques. Data was simultaneously collected from a RGB-D video camera placed above the patient and a pressure sensitive mat (PSM) beneath the patient. This paper explores the use of various transforms to achieve registration between the video image plane and the PSM, with the ultimate goal of fusing PSM and video modalities of our patient dataset. A series of experiments were conducted to evaluate transforms requiring different numbers of registration landmarks. The expected error in determining landmark locations in both video and PSM is characterized, including the impact of camera offset, registration instrument angle, the degree of collinearity of landmarks, the spacing between landmarks and the use of “secondary” landmarks estimated from patient anatomy. A landmark spacing greater than 450 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> is recommended since it achieves an error of less than 3 cm when aligning points between video and PSM planes. For a top-down camera view, a similarity transform is recommended while for an angled camera view, a projective transform is recommended.

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: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.896
Threshold uncertainty score0.378

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 head0.039
GPT teacher head0.255
Teacher spread0.216 · 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

Citations8
Published2021
Admission routes1
Has abstractyes

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