Pen pressure control in trajectory-based interaction.
This study presents a series of three experiments that evaluate human capabilities and limitations in using pen-tip pressure as an additional channel of control information in carrying out trajectory tasks such as drawing, writing and gesturing on computer screen. The first experiment measured the n...
| Publicado en: | Behaviour & Information Technology Vol. 29; no. 2; pp. 137 - 149 |
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| Autores principales: | , , |
| Formato: | equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Mar/Apr2010
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105154897&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105154897 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 0144929X B6Q jtl: Behaviour & Information Technology issn: 0144929X maglogo: Y pubinfo: dt: Mar/Apr2010 vid: 29 iid: 2 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 105154897 105154897 2010604395 10.1080/01449290902904733 105154897 ppf: 137 ppct: 12 formats: tig: atl: Pen pressure control in trajectory-based interaction. aug: au: Yin J Ren X Zhai S affil: The School of Information, Kochi University of Technology, Kochi, Japan sug: subj: Computer Input Devices Utilization User-Computer Interface Adult Analysis of Variance Factorial Design Feedback Female Funding Source Human Male Repeated Measures Writing Adult: 19-44 years Female Male ab: This study presents a series of three experiments that evaluate human capabilities and limitations in using pen-tip pressure as an additional channel of control information in carrying out trajectory tasks such as drawing, writing and gesturing on computer screen. The first experiment measured the natural range of force used in regular drawing and writing tasks. The second experiment tested human performance of maintaining pen-tip pressure at different levels with and without a visual display of the pen pressure. The third experiment, using the steering law paradigm, studied path steering performance as a function of the steering law index of difficulty, steering path type (linear and circular) and pressure precision tolerance interval. The main conclusions of our investigation are as follows. The natural range of pressure used in drawing and writing is concentrated in the 0.82 N (SI force unit Newton (N) is used in this article) to 3.16 N region. The resting force of the pen tip on the screen is between 0.78 N and 1.58 N. Pressure near or below the resting force is markedly more difficult to control. Visual feedback improves pressure-modulated trajectory tasks. Up to six layers of pressure can be controlled in steering tasks, but the error rate changed from 4.9% for one layer of pressure to 35% for six layers. The steering law holds for pressure steering tasks, which enables systematic prediction of successful steering time for a given path's length, width and pressure precision criterion. The steering time can also be modelled as a logarithmic function of pressure control precision ratio sigma. Taken together, the current work provides a systematic body of empirical knowledge as basis for future research and design of digital pen applications. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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