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Record W2079323551 · doi:10.1117/12.686641

Virtual assemblage of fragmented artefacts

2006· article· en· W2079323551 on OpenAlexaff
P.C. Igwe, George K. Knopf

Bibliographic record

VenueProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2006
Typearticle
Languageen
FieldEarth and Planetary Sciences
Topic3D Surveying and Cultural Heritage
Canadian institutionsWestern University
Fundersnot available
KeywordsVirtual realityDigitizationAssemblage (archaeology)Computer scienceHaptic technologyProcess (computing)Representation (politics)Computer graphics (images)Computer graphicsObject (grammar)Human–computer interactionVirtual machineArtificial intelligenceComputer visionArchaeologyGeography

Abstract

fetched live from OpenAlex

Recent improvements in computer graphics, three-dimensional digitization and virtual reality tools have enabled archaeologists to capture and preserve ancient relics recovered from excavated sites by creating virtual representations of the original artefacts. The digital copies offer an accurate and enhanced visual representation of the physical object. The process of reconstructing an artefact from damaged pieces by virtual assemblage and clay sculpting is summarized in this paper. Surface models of the digitized fragments are first created and then manipulated in a virtual reality (VR) environment using simple force feedback tools. The haptic device provides tactile cues that assist the user with the assembly process and introducing soft virtual clay to the resultant assemblage for complete 3D reconstruction. Since reconstruction is performed within a VR environment, the joining or "gluing" of separate damaged fragments will permit the scientist to investigate alternative relic configurations. Results from a preliminary experiment are presented to illustrate the virtual assemblage procedure used to reconstruct fragmented or broken objects.

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: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.006
Threshold uncertainty score0.019

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0010.003
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0060.001

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 head0.011
GPT teacher head0.205
Teacher spread0.194 · 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 designBench or experimental
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
Published2006
Admission routes1
Has abstractyes

Explore more

Same venueProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE→Same topic3D Surveying and Cultural Heritage→French-language works237,207→