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A Multitouch Drawing Application with Occlusion-Free Interaction Strategies

Abstract : Increasing number of desktop applications are becoming available on smartphones and tablets today with multitouch capabilities, allowing the users’ fingers to perform sophisticated or fine-grained interactivities. However, finger occlusion and imprecision continue to limit the performance of multitouch interactions. Quite a few studies proposed the ways to address this issue, and some of them are now used in commonly encountered situations such as text editing. Many occlusion-avoiding techniques used today focus on initial target acquisition step of touch interaction (e.g. accurately selecting an item or touching a desired starting point in drawing a line), having possible consequences to any further intended action (e.g. dragging the selected item to a different location or drawing a line on the canvas). In order to better understand the influence of finger occlusion-free techniques on other parts of the overall interactions, in this paper we report a full-fledged sketch app that incorporates combinations of basic target acquisition features. As the app is a full-featured, end-to-end tablet prototype, such usability issues can be more readily revealed and discussed in the context of realistic drawing situations.
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Yi Ren Tan, Hyowon Lee, Insuk Ko, Dongliang Zhang, Chunxiao Li. A Multitouch Drawing Application with Occlusion-Free Interaction Strategies. 17th IFIP Conference on Human-Computer Interaction (INTERACT), Sep 2019, Paphos, Cyprus. pp.535-539, ⟨10.1007/978-3-030-29390-1_32⟩. ⟨hal-02877646⟩



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