The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper investigates the tactile orientation discrimination of virtual, small-scale, patterned surfaces through a tactile display. The tactile display is an array of 4×4 vertically moving pins which can simulate the shape of small scale features. Its small size and low mass allow users to explore virtual surfaces freely and intuitively. The evaluation method consisted of measuring the orientation...
The active control of exploratory movements is an integral part of active touch. We investigated how the spatio-temporal extension of an exploration affects texture discrimination via active touch and how participants spontaneously control the extension of their exploration. Participants stroke one to 8 times across a virtual grating. Half of the participants judged the grating according to ridge...
In the present study, a vibrotactile feedback device for spatial guidance was evaluated in a tracking task paradigm. Participants (N = 18) had to translate and rotate virtual objects according to the vibrotactile vs. verbal cues without visual information. Both types of spatial guidance were evaluated using objective performance data (i.e. speed, accuracy) as well as subjective judgments. Results...
In a haptic shared control system, a virtual assistant and a human share the control over performed actions to facilitate execution of manipulation tasks. The assistance level determines the amount of support provided by the assistant. It should be adapted autonomously such that task performance and human effort are optimized. The effect of the assistance level on task performance and human effort...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.