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Record W2123654685 · doi:10.1109/icsmc.1997.626184

Canonical decomposition of affine motion for visual servoing

2002· article· en· W2123654685 on OpenAlexaff
M. Wong, Roy Eagleson

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicAdvanced Vision and Imaging
Canadian institutionsWestern University
Fundersnot available
KeywordsVisual servoingAffine transformationComputer visionArtificial intelligenceCanonical formKalman filterComputer scienceBasis (linear algebra)QuaternionAffine shape adaptationMathematicsRobotAffine combinationGeometry

Abstract

fetched live from OpenAlex

We report both the theoretical development and experimental results of a visual servoing technique which makes use of canonical decomposition of the affine motion model in computer vision, to six one-parameter groups (2D translation, dilation, rotation and 2D affine shears). Because the canonical decomposition yields one-parameter basis groups, a localized form of correlation can be used to obtain measures of these 6 image deformations. In addition, since these basis functions obey the rules of quaternion algebra, they form an integrable representation of 2D motion, and are thereby compatible with methods of recursive estimation, such as Kalman filtering. Two principles of visual servoing are featured in the system which was developed to verify this model. The first is, that by nesting the perceptual module within an active robotic system, the act of controlling the motion of the sensor adds important information, without which, the perception of certain observables would not be possible. Secondly, whether computer vision is used as a pre-processing stage before displaying information to a human operator, or whether that information will be used within an automated visual feedback loop, the following principle is common: the system is more efficient if the visual information can be transformed in a way which makes the task-specific information explicit.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation 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: Empirical · Consensus signal: none
Teacher disagreement score0.002
Threshold uncertainty score0.008

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0000.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0020.001

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 head0.022
GPT teacher head0.325
Teacher spread0.303 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

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
Published2002
Admission routes1
Has abstractyes

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