<title>Effect of overlap rate between stereoscopic images on performance in a teleoperation</title>

Abstract

According to the results of the simulated teleoperation experiment, the larger the ratio of the overlapping area of stereoscopic images, the smaller the completion times and the number of errors. For this paper we did an experiment using the actual stereoscopic video system. We examined the performance of the teleoperation of an insert task in two experiments. In experiment 1, we set three fixed overlap rate conditions for the stereoscopic image pairs. (High overlap rate condition): The convergence point of the two cameras was set at the goal point where a cylindrical object was inserted. When subjects fixated their eyes on the goal point, the overlap rate of the images from the cameras was 95%. (Middle overlap rate condition): The convergence point of the cameras was set at the center of the working area. When subjects fixated their eyes on the goal points, it was 76.7%. (Low overlap rate condition): Convergence point of the camera was set at the point in the situation where the ratio of the overlapped area was 49% when subjects fixated to the goal point. Completion times and the numbers of errors of the insert task were measured. As a result, these were smallest at the high overlap rate condition. In experiment 2, we compared the performance between a fixed and a variable overlap rate conditions in a pick-and-insert task. The experimental results suggested that the number of errors of variable overlap rate condition was less than that of the fixed condition although the completion time of the former condition was not shorter than that of the latter condition.

Determining limits to avoid double vision in an autostereoscopic display: Disparity and image element width

“…In this study, we will focus on diplopia thresholds that are less well known than the eye strain caused by stereoscopic stimuli. [18][19][20][21][22][23] Diplopia can be annoying to the user because the three-dimensional perception is disrupted, the two halfimages alternate in visual perception and even eye strain is often experienced. So, avoiding diplopia is one of the key issues that the content or user interface designer must take into account when stereoscopic content is created.…”

An effect of a large overlapped area of stereo pairs at the working point an a spatial multi-resolution stereoscopic video system

“…By the way, according to our past researches with the singleresolution stereoscopic video system, the operational efficiency through the system which has the large overlapped area of stereo * e-mail:ienaga@isit.or.jp † e-mail:matsnaga@brain.is.kyushu-u.ac.jp ‡ e-mail:shidoji@brain.is.kyushu-u.ac.jp § e-mail:otsurum@brain.is.kyushu-u.ac.jp ¶ e-mail:arakis@brain.is.kyushu-u.ac.jp e-mail:matsuki@brain.is.kyushu-u.ac.jp pairs at working point was higher than that through the system which has the small overlapped area [5]. In many systems, the convergence point is fixed at an arbitrary point in workspace.…”