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 presents an assistive robotic system, for which the user can interact with a mobile robot using a haptic interface, for senior and disabled people. The system consists of a nonholonomic PeopleBot mobile robot and a Phantom Omni haptic interface. Several technical problems related to the system are addressed and solved. Specifically, the backstepping technique is used, and a new tracking...
This paper presents a novel human-robot interaction system for which haptic interaction is involved. The system consists of a nonholonomic mobile robot and a Phantom Omni haptic device. The tracking problem on the 2D plane is analyzed and the backstepping technique is used for designing the tracking algorithm for the nonholonomic mobile robot. A haptic rendering algorithm is designed to generate the...
Ultrasound elastography has been well applied in medical detection as a tool to aid diagnosis. However, in conventional ultrasound elastograms, there are patterned artifacts from non-white estimation errors. In this paper, we investigate spatial angular compounding methods to reduce the errors. The method involves averaging ultrasound angular elastograms around the same region-of-interest but from...
Ultrasound elastography is the technique of obtaining tissue stiffness information. In tumor diagnosis, the stiffness of the tissue is one of the most important parameters for tissue characterization, the more accurate stiffness information clinic doctors obtain, the more reliable diagnosis conclusion they can make. In ultrasound elastography, motion tracking between two successive frames plays a...
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.