Redirected reach in virtual reality: Enabling natural hand interaction at multiple virtual locations with passive haptics

2017 ◽  
Author(s):  
Mohamed Suhail ◽  
Shyam Prathish Sargunam ◽  
Dustin T. Han ◽  
Eric D. Ragan
Keyword(s):  
Virtual Reality ◽  
Passive Haptics

Ascending and Descending in Virtual Reality: Simple and Safe System Using Passive Haptics

2018 ◽  
Vol 24 (4) ◽  
pp. 1584-1593 ◽  
Author(s):  
Ryohei Nagao ◽  
Keigo Matsumoto ◽  
Takuji Narumi ◽  
Tomohiro Tanikawa ◽  
Michitaka Hirose
Keyword(s):  
Virtual Reality ◽  
Passive Haptics

scholarly journals The influence of haptics when assessing household products presented in different means: a comparative study in real setting, flat display, and virtual reality environments with and without passive haptics

2020 ◽  
Author(s):  
Julia Galán ◽  
Francisco Felip ◽  
Carlos García-García ◽  
Manuel Contero
Keyword(s):  
Virtual Reality ◽  
Comparative Study ◽  
Physical Contact ◽  
Physical Interaction ◽  
Product Characteristics ◽  
Household Product ◽  
Passive Haptics ◽  
Household Products ◽  
Product Assessment

Abstract This research aimed to analyse the influence of presentation means in assessing different household product characteristics and to study the influence of physical contact with the product on that assessment. To this end, the presentation of an armchair in four different means was prepared: two offering the chance to touch the product (real setting and virtual reality with passive haptics) and two not offering the physical interaction possibility (virtual reality and 3D interactive image on a screen). The product was assessed by 128 volunteers (74 men, 54 women) on a semantic scale with 12 bipolar pairs. The results revealed that the presentation means did not influence the overall product assessment, but affected the assessment of 3 of 12 features (weight, size, and aesthetics), where coming into physical contact with the product impacted the assessment of these features. Finally, similar assessments of the product were obtained in both means of visual-only presentation.

Top-Down Processing and Visual Reorientation Illusions in a Virtual Reality Environment

2004 ◽  
Vol 63 (3) ◽  
pp. 143-149 ◽  
Author(s):  
Fred W. Mast ◽  
Charles M. Oman
Keyword(s):  
Virtual Reality ◽  
Visual Processing ◽  
Line Length ◽  
Perceptual Cues ◽  
Virtual Reality Environment ◽  
Top Down ◽  
Test Conditions ◽  
The Subject ◽  
Processing Mechanisms

The role of top-down processing on the horizontal-vertical line length illusion was examined by means of an ambiguous room with dual visual verticals. In one of the test conditions, the subjects were cued to one of the two verticals and were instructed to cognitively reassign the apparent vertical to the cued orientation. When they have mentally adjusted their perception, two lines in a plus sign configuration appeared and the subjects had to evaluate which line was longer. The results showed that the line length appeared longer when it was aligned with the direction of the vertical currently perceived by the subject. This study provides a demonstration that top-down processing influences lower level visual processing mechanisms. In another test condition, the subjects had all perceptual cues available and the influence was even stronger.

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