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  Optimizing minimal sketches of visual object categories

Engel, D., Kottler, V., Malisi, C., Röttig, M., Schultheiss, S., Willing, E., et al. (2010). Optimizing minimal sketches of visual object categories. Perception, 39(ECVP Abstract Supplement), 11.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-BF00-C Version Permalink: http://hdl.handle.net/21.11116/0000-0003-1C16-6
Genre: Meeting Abstract

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 Creators:
Engel, D1, 2, 3, Author              
Kottler, VA4, Author
Malisi, CU4, Author
Röttig, M, Author
Schultheiss , SJ, Author
Willing, EM4, Author
Curio, C1, 2, 3, Author              
Bülthoff, HH1, 2, Author              
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
3Project group: Cognitive Engineering, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_2528702              
4Max Planck Institute for Developmental Biology, Max Planck Society, Max-Planck-Ring 5, 72076 Tübingen, DE, ou_2421691              

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 Abstract: We present an iterative optimization scheme for obtaining minimal line sketches of object categories. Minimal sketches are introduced as a tool to derive the most important visual properties of a visual object category and can potentially provide useful constraints for automatic classification algorithms. We define the minimal sketch of an object category as the minimal number of straight lines necessary to lead to a correct recognition by 75 of naïve participants after one second of presentation. Nine participants produced sketches of 30 object categories. We displayed the three sketches with the lowest number of lines for each category to 24 participants who freely named them. In consecutive rounds the sketchers had to optimize their drawings independently based on sketches and responses of the previous rounds. The optimized sketches were subsequently rated again by 24 new subjects. The average number of lines used in the sketches decreased from 8.8 to 7.9 between the two trials while the average recognition rate increased from 57.3 to 67.9. 27 of the 30 categories had at least one sketch that was recognized by more than 75 of subjects. For most of the categories, the sketches converged to an optimum within two drawing-rating rounds.

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 Dates: 2010-08
 Publication Status: Published in print
 Pages: -
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 Rev. Method: -
 Identifiers: BibTex Citekey: 6725
DOI: 10.1177/03010066100390S101
 Degree: -

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Title: 33rd European Conference on Visual Perception (ECVP 2010)
Place of Event: Lausanne, Switzerland
Start-/End Date: 2010-08-22 - 2010-08-26

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Title: Perception
Source Genre: Journal
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Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 39 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 11 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369