Instability in conventional haptic rendering destroys the perception of rigid objects in virtual environments. Inherent limitations in the conventional haptic loop restrict the maximum stiffness that can be rendered. In this paper we present a method to render virtual walls that are much stiffer than those achieved by conventional techniques. By removing the conventional digital haptic loop and...

Haptic information originates from a different human sense (touch), therefore the quality of service (QoS) required to support haptic traffic is significantly different from that used to support conventional real-time traffic such as voice or video. Each type of network impairment has different (and severe) impacts on the user’s haptic experience. There has been no specific provision of QoS par...

Object manipulation produces characteristic sounds and causes specific haptic sensations that facilitate the recognition of the manipulated object. To identify the neural correlates of audio-haptic binding of object features, healthy volunteers underwent functional magnetic resonance imaging while they matched a target object to a sample object within and across audition and touch. By introduci...

Haptic feedback has the potential to enhance users’ sense of being engaged and creative in their artwork. Current work on providing haptic feedback in computer-based drawing applications has focused mainly on the realism of the haptic sensation rather than the users’ experience of that sensation in the context of their creative work. We present a study that focuses on user experience of three h...

Background The amount of direct hand-tool-tissue interaction and feedback in minimally invasive surgery varies from being attenuated in laparoscopy to being completely absent in robotic minimally invasive surgery. The role of haptic feedback during surgical skill acquisition and its emphasis in training have been a constant source of controversy. This review discusses the major developments in ...

Traditional Internet is based on the best effort approach, which allow connections for peer-to-peer communications with different characteristics, such as VOIP (Voice over Internet Protocol), VoD (Video on Demand) and data transmission services. In contrast, the increasing demands for variety multimedia applications for future Internet. Therefore, all multimedia services should have Quality of ...

PURPOSE To describe a modified technique of haptic externalization during repositioning of dislocated posterior chamber lens implants, which facilitates placement of scleral fixation sutures around the haptic for implant stabilization. METHODS We describe a technique of repositioning a dislocated posterior chamber implant with scleral fixation sutures, which uses a small, clear corneal incisi...

Haptic devices are becoming more widely used as hardware becomes available and the cost of both low and high fidelity haptic devices decreases. One of the application areas of haptics is Haptic Data Visualization (HDV). HDV provides functionality by which users can feel and touch data. Blind and partially sighted users can benefit from HDV, as it helps them manipulate and understand information...

Traditionally, the main goal of teleoperation has been in successfully achieving a given task as if carrying out the task in the local space. An emerging and related requirement is to also match the subjective sensation or user experience of the remote environment while maintaining reasonable task performance. This concept is often called “presence” or “(experiential) telepresence,” which is in...

When a short flash occurs in spatial alignment with a moving object, the moving object is seen ahead the stationary one. Similar to this visual "flash-lag effect" (FLE) it has been recently observed for the haptic sense that participants judge a moving hand to be ahead a stationary hand when judged at the moment of a short vibration ("haptic flash") that is applied when the two hands are spatia...