Watch my Painting: The Back of the Hand as a Drawing Space for Smartwatches

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • Maximilian Schrapel
  • Florian Herzog
  • Steffen Ryll
  • Michael Rohs
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Details

Original languageEnglish
Title of host publicationCHI EA 2020
Subtitle of host publicationExtended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems
PublisherAssociation for Computing Machinery (ACM)
Number of pages10
ISBN (electronic)9781450368193
Publication statusPublished - 25 Apr 2020
Event2020 ACM CHI Conference on Human Factors in Computing Systems, CHI EA 2020 - Honolulu, United States
Duration: 25 Apr 202030 Apr 2020

Abstract

Smartwatches can be used independently from smartphones, but input tasks like messaging are cumbersome due to the small display size. Parts of the display are hidden during interaction, which can lead to incorrect input. For simplicity, instead of general text input a small set of answer options are often provided, but these are limited and impersonal. In contrast, free-form drawings can answer messages in a very personal way, but are difficult to produce on small displays. To enable precise drawing input on smartwatches we present a magnetic stylus that is tracked on the back of the hand. In an evaluation of several algorithms we show that 3D position estimation with a 7.5x20mm magnet reaches a worst-case 6% relative position error on the back of the hand. Furthermore, the results of a user study are presented, which show that in the case of drawing applications the presented technique is faster and more precise than direct finger input.

Keywords

    Around-device interaction, Digital pens, Mobile interaction

ASJC Scopus subject areas

Cite this

Watch my Painting: The Back of the Hand as a Drawing Space for Smartwatches. / Schrapel, Maximilian; Herzog, Florian; Ryll, Steffen et al.
CHI EA 2020: Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems. Association for Computing Machinery (ACM), 2020.

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Schrapel, M, Herzog, F, Ryll, S & Rohs, M 2020, Watch my Painting: The Back of the Hand as a Drawing Space for Smartwatches. in CHI EA 2020: Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems. Association for Computing Machinery (ACM), 2020 ACM CHI Conference on Human Factors in Computing Systems, CHI EA 2020, Honolulu, United States, 25 Apr 2020. https://doi.org/10.1145/3334480.3383040
Schrapel, M., Herzog, F., Ryll, S., & Rohs, M. (2020). Watch my Painting: The Back of the Hand as a Drawing Space for Smartwatches. In CHI EA 2020: Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems Association for Computing Machinery (ACM). https://doi.org/10.1145/3334480.3383040
Schrapel M, Herzog F, Ryll S, Rohs M. Watch my Painting: The Back of the Hand as a Drawing Space for Smartwatches. In CHI EA 2020: Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems. Association for Computing Machinery (ACM). 2020 doi: 10.1145/3334480.3383040
Schrapel, Maximilian ; Herzog, Florian ; Ryll, Steffen et al. / Watch my Painting : The Back of the Hand as a Drawing Space for Smartwatches. CHI EA 2020: Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems. Association for Computing Machinery (ACM), 2020.
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