Studies of open loop pointing with induced motion

Open Loop Pointing in Virtual Environments

The two visual systems hypothesis is a powerful neuroanatomical model of the relationship between visual perception and motor action. The hypothesis claims that two independent streams of visual processing within the human brain maintain independent representations of surrounding space. A cognitive stream of visual processing maintains an allocentric map of space, while a sensorimotor stream of...

Gaze-centered remapping of remembered visual space in an open-loop pointing task.

Establishing a coherent internal reference frame for visuospatial representation and maintaining the integrity of this frame during eye movements are thought to be crucial for both perception and motor control. A stable headcentric representation could be constructed by internally comparing retinal signals with eye position. Alternatively, visual memory traces could be actively remapped within ...

Comparative Study of Partial Closed-loop Versus Open-loop Motion Estimation for Coding of HDTV

Motion estimation is a vital function of video coders that utilize motion compensated prediction to exploit the temporal redundancy of video signals. The reference images used in the motion estimation process can be either original images (open-loop architecture) or reconstructed images (closedloop architecture). While the closed-loop architecture is intuitively superior to the open-loop archit...

Finger Pointing Accuracy on Leap Motion Sensor

In this short paper we present a performance analysis of the Leap Motion depth sensor solely used as a single finger pointing device. Based on the evaluation of Fitts’ Law, we have examined the sensor capabilities with two groups of participants – 10 moderately aged computer affine technicians and 10 elderly people with no explicit experience in handling technical devices. Results have been com...

Force-to-motion functions for pointing