The tactile array sensor is a key component of the multi-sensory integration work at the General Robotics and Active Sensory Perception Laboratory (GRASP Lab) at the University of Pennsylvania. In our work, tactile sensors provide information about the nature of the contact between an actuated tool, such as a robotic gripper, and its physical domain. This information is used for feedback contro...

Increasing amounts of research are being dedicated to the representation of video sequences in terms of component parts which are rendered and composited according to scripting information. Representations chosen range from two-dimensional layers all the way through full three-dimensional databases. These types of representations show great promise for compression, interactivity, and post-produ...

Large and complex information requires arbitrarily extensive displays for an exact, comprehensive visualization. This paper introduces a technique, time-multiplexing, for presenting such information that concentrates on the efficient management of time for a typical display. Timemultiplexing complements classical approaches, which are graphics oriented and make use of spatial and perceptual fea...

We describe a new 28 view, 25 inch, autostereoscopic display which combines both time sequential and multi-projector technology. It is constructed from four time sequential subsystems, which abut behind a single ferroelectric liquid crystal shutter. The display has a resolution of 512×384 pixels in 24-bit colour. It allows multiple viewers to simultaneously view stereoscopic images without the ...

How does the brain estimate time? This old question has led to many biological and psychological models of time perception (R. A. Block, 1989; P. Fraisse, 1963; J. Gibbon, 1977; D. L. I. Zakay, 1989). Because time cannot be directly measured at a given moment, it has been proposed that the brain estimates time based on the number of changes in an event (S. W. Brown, 1995; P. Fraisse, 1963; W. D...

although faster than typewriter devices, do not implicitly create records of the user's interactive sessions. Based on the premise that a display terminal session facility that also has the record-keeping functions of typewriter terminals would increase productivity, a research project was undertaken that has resulted in the session manager discussed. Experience with the system is summarized. D...