Pointing at 3d target projections with one-eyed and stereo cursors

Abstract

We present a study of cursors for selecting 2D-projected 3D targets. We compared a stereo-and mono-rendered (oneeyed) cursor using two mouse-based and two remote pointing techniques in a 3D Fitts' law pointing experiment. The first experiment used targets at fixed depths. Results indicate that one-eyed cursors only improve screen-plane pointing techniques, and that constant target depth does not influence pointing throughput. A second experiment included pointing between targets at varying depths and used only "screen-plane" pointing techniques. Our results suggest that in the absence of stereo cue conflicts, screenspace projections of Fitts' law parameters (target size and distance) yield constant throughput despite target depth differences and produce better models of performance.

Fishtank fitts

“…The FishTank Fitts system has been employed in several evaluations, in particular, in the comparison of 2D and 3D pointing techniques [6][7][8]. Our evaluations [7] show the mouse offered higher performance, but also that ray-screen outperformed traditional ray pointing [8].…”

Up- and downwards motions in 3D pointing

“…Mouse pointing likely performed best because it allows 2D pointing at target projections, which scale larger for closer targets. This may explain why error rates were lower for upward motions with the mouse and ray [4]; the pointing task was effectively easier due to this scaling effect.…”

“…We present a pointing experiment based on previous work [3], comparing the mouse (an established performance benchmark, see e.g., [2,4]) to two pen techniques. One required touching targets, while the other used remote pointing via ray casting.…”

An investigation of pointing postures in a 3D stereoscopic environment

“…However, they did not mention that whether there will be parallax effects while using pointing techniques to interact with virtual objects. There was one study exploring users' performances while manipulating objects with various parallaxes through remote pointing (Teather and Stuerzlinger, 2013). However, rather than comparing the influence of different pointing postures, their research focused on comparing mouse and raycasting methods.…”