DocumentCode :
1879721
Title :
The role of global configuration in detection of mirror and translational symmetries
Author :
Yamamoto, Kentaro ; Tanaka, Kanji ; Watanabe, Katsumi
Author_Institution :
Res. Centre for Adv. Sci. & Technol., Univ. of Tokyo, Tokyo, Japan
fYear :
2015
fDate :
28-31 Jan. 2015
Firstpage :
165
Lastpage :
168
Abstract :
Mirror symmetry is known as a special case of symmetric patterns because of its superior detectability. This study examined whether the perceptual advantage of mirror symmetry is maintained despite the absence of perfect symmetry. We manipulated the alignment of symmetric patterns by adding a vertical offset between left and right halves of them. We found that regularity of mirror symmetry was better detectable than that of translational symmetry in the aligned display. However, the advantage of mirror symmetry disappeared even with the smallest misalignment used in the present study. These results suggest that global configuration of pattern elements plays an important role in mirror symmetry detection.
Keywords :
aspherical optics; mirrors; optical elements; optical materials; pattern recognition; symmetry; global configuration; global pattern element configuration; left mirror symmetric pattern; mirror detection; mirror misalignment; mirror symmetric pattern alignment; mirror symmetric pattern vertical offset; mirror symmetric regularity detection; mirror symmetry detection; perceptual mirror symmetry advantage; right mirror symmetric pattern; superior mirror detectability; translational symmetry detection; translational symmetry regularity detection; Educational institutions; Feature extraction; Mirrors; Reflection; Robustness; Time factors; Visualization; alignment; detection; mirror symmetry; regularity; translational symmetry;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Knowledge and Smart Technology (KST), 2015 7th International Conference on
Conference_Location :
Chonburi
Print_ISBN :
978-1-4799-6048-4
Type :
conf
DOI :
10.1109/KST.2015.7051479
Filename :
7051479
Link To Document :
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