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Quantization Frequencies in AM Screens

2009· article· en· W4378447451 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.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueTechnical programs and proceedings/Technical program and proceedings · 2009
Typearticle
Languageen
FieldEngineering
TopicAdditive Manufacturing and 3D Printing Technologies
Canadian institutionsnot available
Fundersnot available
KeywordsOffset (computer science)Computer scienceFilter (signal processing)Artificial intelligenceComputer vision

Abstract

fetched live from OpenAlex

AM screening (halftoning) often suffers from periodic patterns in single separation. Since these disturbing patterns become stronger as the printer's resolution decreases, they pose a real challenge to laser printers & inkjets as they compete against offset presses.We present a formula for predicting the frequencies and amplitudes of these disturbing patterns, based only on the geometric structure of the screen. An automatic filter, based on this formula, was constructed. This filter passes only 4% of the potential screens, without the need to construct the screen matrices, and without print, thus reduces testing time drastically. At the next stage, the method was generalized to handle interference between the screen and machine frequencies.This filter became a vital tool in screening development for HP-Indigo machines. It served us well in the construction of all of our latest high ruling screens. Currently, this tool is also used to generate an AM screen for the commercial inkjet developed by HP-Vancouver, and the results are promising.A patent application was submitted, concerning both the filter and the fine geometries which it passes (international application PCT/IL00/00079, publication number WO0158140, filed on 06/02/2000).

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)0.001
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: Other design · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.901
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.001
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 head0.018
GPT teacher head0.247
Teacher spread0.229 · 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