3D Selection Vault

2D-Grid-Cursor

In handheld AR, a translucent flat grid cursor is placed in the scene; vertical swipes move it in depth and horizontal swipes resize it, and tapping the grid cell over the target selects it.

How it works

Touching places the grid cursor at the touch point; swiping up or down pushes it deeper or pulls it closer, and left or right changes its size. Objects the grid passes through are shown in its cells and a tap on the right cell selects. On an iPhone 6 with 12 participants (targets 0.2–1 cm, 20–80% occluded), error rates were 0.25% for PR-Bubble-Cursor, 1.2% for PR-Cone-Casting, 2.7% for touch Go-Go, 4.4% for 2D-Grid-Cursor, 5% for Offset-Ray-Casting and 41% for touch raycasting; times were 0.44 s for raycasting, 0.68 s PR-Cone, 1.22 s Offset, 1.29 s PR-Bubble, 2.06 s Grid and 2.75 s Go-Go. PR-Bubble-Cursor was preferred.

Papers

• Jibin Yin, Chengyao Fu, Xiangliang Zhang, Tao Liu (2019). Precise Target Selection Techniques in Handheld Augmented Reality Interfaces. IEEE Access 7, 17663-17674 doi:10.1109/ACCESS.2019.2895219
• Becky Spittle, Maite Frutos-Pascual, Chris Creed, Ian Williams (2023). A Review of Interaction Techniques for Immersive Environments. IEEE Transactions on Visualization and Computer Graphics doi:10.1109/tvcg.2022.3174805