Elbow-Anchored Interaction: Designing Restful Mid-Air Input


We designed a mid-air input space for restful interactions on the couch. We observed people gesturing in various postures on a couch and found that posture affects the choice of arm motions when no constraints are imposed by a system. Study participants that sat with the arm rested were more likely to use the forearm and wrist, as opposed to the whole arm. We investigate how a spherical input space, where forearm angles are mapped to screen coordinates, can facilitate restful mid-air input in multiple postures. We present two controlled studies. In the first, we examine how a spherical space compares with a planar space in an elbow-anchored setup, with a shoulder-level input space as baseline. In the second, we examine the performance of a spherical input space in four common couch postures that set unique constraints to the arm. We observe that a spherical model that captures forearm movement facilitates comfortable input across different seated postures.

Rafael Veras
Huawei, Markham, Ontario, Canada
Gaganpreet Singh
Huawei, Markham, Ontario, Canada
Farzin Farhadi-Niaki
Huawei, Markham, Ontario, Canada
Ritesh Udhani
University of Manitoba, Winnipeg, Manitoba, Canada
Parth Pradeep. Patekar
University of Manitoba, Winnipeg, Manitoba, Canada
Wei Zhou
Huawei Technologies, Markham, Ontario, Canada
Pourang Irani
University of Manitoba, Winnipeg, Manitoba, Canada
Wei Li
Huawei Canada, Markham, Ontario, Canada





会議: CHI 2021

The ACM CHI Conference on Human Factors in Computing Systems (https://chi2021.acm.org/)

セッション: Input / Spatial Interaction / Practice Support

[A] Paper Room 10, 2021-05-11 17:00:00~2021-05-11 19:00:00 / [B] Paper Room 10, 2021-05-12 01:00:00~2021-05-12 03:00:00 / [C] Paper Room 10, 2021-05-12 09:00:00~2021-05-12 11:00:00
Paper Room 10
13 件の発表
2021-05-11 17:00:00
2021-05-11 19:00:00