Automatically mimicking unique hand-drawn pencil lines
| Autor: | Tobias Isenberg, Amy A. Gooch, Zainab AlMeraj, Brian Wyvill, Richard K. Guy |
|---|---|
| Přispěvatelé: | Scientific Visualization and Computer Graphics |
| Rok vydání: | 2009 |
| Předmět: |
Pencil rendering
Computer science MODELS Observational analysis Image processing 02 engineering and technology Computational aesthetics Non-photorealistic rendering (NPR) User studies 03 medical and health sciences 0302 clinical medicine ARM MOVEMENT 0202 electrical engineering electronic engineering information engineering Statistical analysis Computer vision Pencil (mathematics) Dynamic optimization yielding voluntary arm movement trajectory business.industry Natural media simulation Line drawings General Engineering 020207 software engineering Computer Graphics and Computer-Aided Design Human-Computer Interaction Point data Artificial intelligence business Algorithm 030217 neurology & neurosurgery |
| Zdroj: | Computers & Graphics, 33(4), 496-508. PERGAMON-ELSEVIER SCIENCE LTD |
| ISSN: | 0097-8493 |
| Popis: | In applications such as architecture, early design sketches containing accurate line drawings often mislead the target audience. Approximate human-drawn sketches are typically accepted as a better way of demonstrating fundamental design concepts. To this end we have designed an algorithm that creates lines that perceptually resemble human-drawn lines. Our algorithm works directly with input point data and a physically based mathematical model of human arm movement. Our algorithm generates unique lines of arbitrary length given the end points of a line, without relying on a database of human-drawn lines. We found that an observational analysis obtained through various user studies of human lines made a bigger impact on the algorithm than a statistical analysis. Additional studies have shown that the algorithm produces lines that are perceptually indistinguishable from that of a hand-drawn straight pencil line. A further expansion to the system resulted in mimicked dashed lines. (C) 2009 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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