MétaCan
Menu
Back to cohort
Record W1927575031 · doi:10.1109/ccece.2000.849721

Region-based motion estimation in image sequences

2002· article· en· W1927575031 on OpenAlexaff
A. Shamim, John A. Robinson

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicAdvanced Vision and Imaging
Canadian institutionsMemorial University of Newfoundland
Fundersnot available
KeywordsArtificial intelligenceComputer visionMotion estimationSegmentationMerge (version control)Reference frameComputer scienceMotion fieldImage segmentationHeuristicsMotion (physics)Similarity (geometry)MathematicsPattern recognition (psychology)Image (mathematics)Frame (networking)

Abstract

fetched live from OpenAlex

We propose a method to segment moving objects in image sequences, so that each can be represented by its boundary and a compact motion description. Assuming that a scene consists of a small number of moving objects, we process each pair of frames as follows: first, we recursively identify a small number of "movement classes", each represented by two or move motion parameters. Second, we use a spatially-segmented version of the reference frame (i.e. the later of the two frames) to classify segments into movement classes. Third, we merge segments using various similarity heuristics. Experimental results of some standard test sequences have shown that the proposed algorithm results in good quality motion segmentation with a small number of motion vectors.

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)0.001
metaresearch head score (Gemma)0.002
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 score0.006
Threshold uncertainty score0.011

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.002
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.001

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 head0.028
GPT teacher head0.278
Teacher spread0.250 · 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

Citations2
Published2002
Admission routes1
Has abstractyes

Explore more

Same topicAdvanced Vision and ImagingFrench-language works237,207