The effect of visual attention on stereoscopic lighting of museum ceramic exhibits： A virtual environment mixed with eye-tracking

Abstract

Stereoscopic lighting is one of the influencing visual quality factors improving the visual presentation of ceramic exhibits. However, the current research only has a specific definition, and there is no clear measurement and evaluation method. This research adopted the method of bidirectional verification: psychophysical experiment and immersive virtual reality (VR) with eye-movement tracking. We proposed a standard questionnaire for the stereoscopic visual experience. The eye-tracking data show that the visible fixation duration with stereoscopic lighting is (M = 5.18 s), and the number of fixation points accounted for 63.48% of the whole number. Both indexes were higher than the situation without stereoscopic lighting. The result shows that the accuracy of finding the detail changes with or without stereoscopic lighting was 12.5% through the comparison of visual identification tasks, and finding modeling changes was 11.5%. In the situation with stereoscopic lighting, the first identification frequency increased by 15.9% for small pattern changes of exhibits, as local modeling changes increased by 19%. These results indicated that the stereoscopic lighting set according to the exhibits' volume could effectively improve the viewer's visual guide, strengthen the visual attention of the details, and model elements of the exhibits to achieve the optimal appreciation. Povzetek: Pri stetoskopskem osvetljevanju muzejskih objektov so ugotavljali primerne rešitve za najboljši vtis na obiskovalcih.

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