Modeling the Impact of Depth on Pointing Performance
summary
Experiment measures mid-air distal pointing at 110, 220, 330 cm using active stereo tracking (Vicon/Wii remote and Eyecon cameras) and compares physical versus rendered depths. Main claims: two-part Welford model predicts movement time better as distance increases, K-factor varies with depth in a monotonic but not-proven-linear way, and virtual depth differs from physical — VR calibration changes K slopes and intercepts. Angular index metrics do not improve global fits; three distances limit conclusions about linearity.
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chapters (16)
- 0:00Start
- 0:05Modeling The Impact of Depth on Pointing Performance
- 0:39Connection To Virtual Reality
- 1:12Overview and Contributions
- 1:37Pointing Models
- 2:12Gain and the K-Factor
- 3:07Angular Measures Kopper 2010
- 3:49Research Questions
- 4:21Apparatus
- 4:38Study Design
- 5:15Does Welford Improve Modelling?
- 6:35Separability of A and W
- 8:11Is K Variation the Same For VR?
- 9:50Do Angular Measures Fix Fitts?
- 11:21Summary
- 13:05Key Take Aways
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