Recently there has been an increase in research of hand gestures for interaction the area Augmented Reality (AR). However this focused on developer designed gestures, and little is known about user preference behavior AR. In paper, we present results a guessability study A total 800 have elicited 40 selected tasks from 20 partic-ipants. Using agreement found among user-defined gesture set was created to guide design-ers achieve consistent user-centered

ABSTRACT We theoretically and empirically examine the impact of control display (CD) gain on mouse pointing performance. Two techniques for modifying CD are considered: constant (CG) where is uniformly adjusted by a multiplier, pointer acceleration (PA) using nonuniform function depending movement characteristics. Both CG PA evaluated at various levels relationship between cursor movement: from low levels, which have near one-to-one mapping, through to high that aggressively amplify...

This paper presents a technique for natural, fingertip-based interaction with virtual objects in Augmented Reality (AR) environments. We use image processing software and finger- hand-based fiducial markers to track gestures from the user, stencil buffering enable user see their fingers at all times, haptic feedback devices feel objects. Unlike previous AR interfaces, this approach allows users interact content using natural hand gestures. The describes how these techniques were applied an...

Menus are a primary control in current interfaces, but there has been relatively little theoretical work to model their performance. We propose of menu performance that goes beyond previous by incorporating components for Fitts' Law pointing time, visual search time when novice, Hick-Hyman decision expert, and the transition from novice expert behaviour. The is able predict many different designs, including adaptive split menus, items with frequencies sizes, multi-level menus. tested...

User interfaces can improve task performance by exploiting the powerful human capabilities for spatial cognition. This opportunity has been demonstrated many prior experiments. It is tempting to believe that providing greater flexibility-by moving from flat 2D 3D user interfaces-will further enhance performance. paper describes an experiment investigates effectiveness of memory in real-world physical models and equivalent computer-based virtual systems. The different vary user's freedom use...

On traditional tables, people frequently use the third dimension to pile, sort and store objects. However, while effective informative for organization, this of does not usually extend far above table. To enrich interaction with digital we present concept shallow-depth 3D -- limited depth. Within environment several common methods need be reconsidered. Starting from any one, two three touch points, techniques that provide control all types rotation coupled translation (6DOF) on a...

Touch interactions have refreshed some of the 'glowing enthusiasm' thirty years ago for direct manipulation interfaces. However, today's touch technologies, whose are supported by graphics, sounds or crude clicks, a tactile sameness and gaps in usability. We use Large Area Tactile Pattern Display (LATPaD) to examine design possibilities outcomes when enhanced with variable surface friction. In series four studies, we first confirm that friction gives significant performance advantages...

Research replication only works if there is confidence built into the results.

Experimental preregistration is required for publication in many scientific disciplines and venues. When experimental intentions are preregistered, reviewers readers can be confident that evidence support of reported hypotheses not the result HARKing, which stands Hypothesising After Results Known. We review motivation outcomes across a variety disciplines, as well previous work commenting on role evaluation HCI research. then discuss how could adapted to distinctive characteristics...

Several recent research systems have provided interactive three-dimensional (3D) visualisations for supporting everyday work such as file and document management. But what improvements do these 3D interfaces offer over their traditional 2D counterparts? This paper describes the comparative evaluation of two management that differ only in number dimensions used displaying interacting with data. The system is heavily based on Robertson et al.'s Data Mountain, which supports users storing,...

In this paper we present new interaction techniques for virtual environments. Based on an extension of 2D MagicLenses, have developed involving 3D lenses, information filtering and semantic zooming. These provide users with a natural, tangible interface selectively zooming in out specific areas interest Augmented Reality scene. They use rapid fluid animation to help assimilate the relationship between views detailed focus global context. As well as supporting zooming, technique is readily...

This paper examines how multimodal feedback assists small-target acquisition in graphical user interfaces. All combinations of three modes are analysed: non-speech audio; tactile; and pseudo-haptic 'sticky' feedback. The tactile conditions used stimulation through vibration (rather than force-feedback), the sticky were implemented by dynamically reconfiguring mouse control-display gain as cursor entered target. Results show that for small, discretely located targets all reduce targeting...

ABSTRACT Many interactive tasks in graphical user interfaces involve finding an item a list but with the not currently sight. The two main ways of bringing into view are scrolling one-dimensional lists and expansion level hierarchical list. Examples include selecting items menus navigating through "tree" browsers to find files, folders, commands, or e-mail messages. System designers often responsible for structure layout these components, yet prior research provides conflicting results on...

We present SensaBubble, a chrono-sensory mid-air display system that generates scented bubbles to deliver information the user via number of sensory modalities. The reliably produces single specific sizes along directed path. Each bubble produced by SensaBubble is filled with fog containing scent relevant notification. aspect means presented both temporally and multimodally. Temporal enabled through two forms persistence: firstly, visual projected onto which only endures until it bursts;...

In this paper, we explore ways to combine the video of a remote person with shared tabletop display best emulate face-to-face collaboration. Using simple photo application compare variety social and performance measures collaboration standard non-spatial 2D interface two approaches for adding spatial cues videoconferencing: one based on simulated immersive 3D, other streams in physically fixed arrangement around an interactive table. A condition is included as 'gold-standard' control. As...

In this paper, we show that people frequently return to previously-visited regions within their documents, and scrollbars can be enhanced ease task. We analysed 120 days of activity logs from Microsoft Word Adobe Reader. Our analysis shows region revisitation is a common supported with relatively short recency lists. This establishes an empirical foundation for the design scrollbar containing marks helps previously visited document regions. Two controlled experiments decrease time, large...

Touch-based tablet UIs provide few shortcut mechanisms for rapid command selection; as a result, selection on tablets often requires slow traversal of menus. We developed new technique multi-touch tablets, called FastTap, that uses thumb-and-finger touches to show and choose from spatially-stable grid-based overlay interface. FastTap allows novices view inspect the full interface, but once item locations are known, people select commands with single quick tap. The interface helps users...