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Limited By:	Subject = mobile devices;

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Guided by Touch: Tactile Pedestrian Navigation (2011)

Jacob, Ricky; Mooney, Peter; Winstanley, Adam C.

Guided by Touch: Tactile Pedestrian Navigation (2011)

Jacob, Ricky; Mooney, Peter; Winstanley, Adam C.

Abstract:

Haptics is a feedback technology that takes advantage of the human sense of touch by applying forces, vibrations, and/or motions to a haptic-enabled user device such as a mobile phone. In this paper we describe four haptic feedback-based prototypes for pedestrian navigation. Haptics is used to convey location, orientation, and distance information to users using pedestrian navigation applications. We compare the functionalities of four applications of haptics in such applications. Initial user trials have elicited positive responses from the users who see benefit in being provided with a “heads up” approach to mobile navigation.

http://mural.maynoothuniversity.ie/4898/

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How little is enough? Evaluation of user satisfaction with maps generated by a progressive transmission scheme for geospatial data (2011)

Ying, Fangli; Corcoran, Padraig; Mooney, Peter; Winstanley, Adam C.

How little is enough? Evaluation of user satisfaction with maps generated by a progressive transmission scheme for geospatial data (2011)

Ying, Fangli; Corcoran, Padraig; Mooney, Peter; Winstanley, Adam C.

Abstract:

Progressively transmission of vector data represents a promising means of delivering large amounts of geospatial data to mobile device users who are constrained by: small screen size, limited bandwidth, and limited device storage. A progressive transmission strategy works for a given spatial dataset by computing a series of level of maps at increasing detail. The theoretical approach of progressive transmission is to send every progressive level of the map. However, some users depending on their requirements may be satisfied with one of the intermediate level detail maps. This will result in a resource saving to the user in terms of both download waiting time and bandwidth. This paper discusses user trails to quantify user satisfaction with the output of this progressive transmission scheme, which is based on overall shape complexity of the geographical features in the map. Initial results indicate a significant relationship between Levels of Detail (LOD) and usability of the corres...

http://mural.maynoothuniversity.ie/4974/

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Integrated remotely sensed datasets for disaster management (2008)

McCarthy, Tim; Farrell, Ronan; Curtis, Andrew; Fotheringham, Stewart

Integrated remotely sensed datasets for disaster management (2008)

McCarthy, Tim; Farrell, Ronan; Curtis, Andrew; Fotheringham, Stewart

Abstract:

Video imagery can be acquired from aerial, terrestrial and marine based platforms and has been exploited for a range of remote sensing applications over the past two decades. Examples include coastal surveys using aerial video, routecorridor infrastructures surveys using vehicle mounted video cameras, aerial surveys over forestry and agriculture, underwater habitat mapping and disaster management. Many of these video systems are based on interlaced, television standards such as North America’s NTSC and European SECAM and PAL television systems that are then recorded using various video formats. This technology has recently being employed as a front-line, remote sensing technology for damage assessment post-disaster. This paper traces the development of spatial video as a remote sensing tool from the early 1980s to the present day. The background to a new spatial-video research initiative based at National University of Ireland, Maynooth, (NUIM) is described. New improvements are pr...

http://mural.maynoothuniversity.ie/1417/

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Life-long collections: motivations and the implications for lifelogging with mobile devices (2014)

Caprani, Niamh; Piasek, Paulina; Gurrin, Cathal; O'Connor, Noel E.; Irving, Kate; ...

Life-long collections: motivations and the implications for lifelogging with mobile devices (2014)

Caprani, Niamh; Piasek, Paulina; Gurrin, Cathal; O'Connor, Noel E.; Irving, Kate; Smeaton, Alan F.

Abstract:

In this paper the authors investigate the motivations for life-long collections and how these motivations can inform the design of future lifelog systems. Lifelogging is the practice of automatically capturing data from daily life experiences with mobile devices, such as smartphones and wearable cameras. Lifelog archives can benefit both older and younger people; therefore lifelog systems should be designed for people of all ages. The authors believe that people would be more likely to adopt lifelog practices that support their current motivations for collecting items. To identify these motivations, ten older and ten younger participants were interviewed. It was found that motivations for and against life-long collections evolve as people age and enter different stages, and that family is at the core of life-long collections. These findings will be used to guide the design of an intergenerational lifelog browser.

http://doras.dcu.ie/20018/

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Management of spatial data for visualization on mobile devices (2012)

Ying, Fangli

Management of spatial data for visualization on mobile devices (2012)

Ying, Fangli

Abstract:

Vector-based mapping is emerging as a preferred format in Location-based Services(LBS), because it can deliver an up-to-date and interactive map visualization. The Progressive Transmission(PT) technique has been developed to enable the ecient transmission of vector data over the internet by delivering various incremental levels of detail(LoD). However, it is still challenging to apply this technique in a mobile context due to many inherent limitations of mobile devices, such as small screen size, slow processors and limited memory. Taking account of these limitations, PT has been extended by developing a framework of ecient data management for the visualization of spatial data on mobile devices. A data generalization framework is proposed and implemented in a software application. This application can signicantly reduce the volume of data for transmission and enable quick access to a simplied version of data while preserving appropriate visualization quality. Using volunteered geogr...

http://mural.maynoothuniversity.ie/4386/

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Representing Random Terrain on Resource Limited Devices (2004)

Marshall, D; Delaney, Declan; McLoone, Seamus; Ward, Tomas E.

Representing Random Terrain on Resource Limited Devices (2004)

Marshall, D; Delaney, Declan; McLoone, Seamus; Ward, Tomas E.

Abstract:

Random terrain generation is the procedural creation of a set of data that represents closely a believable landscape. Common techniques of achieving this include the use of fractals and noise. Such techniques usually require a large volume of memory, as the geometry of the terrain needs to be calculated and stored at run time. Given the limited memory available on mobile devices, such as mobile telephones, the storage of the data required to represent massive terrains can be difficult. In this paper, we propose a novel method of storing terrain data on devices with limited memory. This method involves placing pre-computed blocks of terrain, known as terrain tiles, together in a psuedo-random manner as governed by a noise function known as Perlin noise. This allows large amounts of terrain data to be represented while still giving the appearance of a randomly generated terrain. Traditionally, Perlin noise is used in the procedural generation of textures and the modeling of naturally ...

http://mural.maynoothuniversity.ie/288/

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Selective progressive transmission of vector data (2011)

Ying, Fangli; Mooney, Peter; Corcoran, Padraig; Winstanley, Adam C.

Selective progressive transmission of vector data (2011)

Ying, Fangli; Mooney, Peter; Corcoran, Padraig; Winstanley, Adam C.

Abstract:

Delivering raw geospatial data to mobile devices is an interesting and challenging computational and user-interface problem. Geospatial data can be rendered in real-time on the mobile device using appropriate visualisation software running on the mobile device operating system. Currently the majority of approaches in delivering geospatial data to mobile devices provide pre-rendered maps (tiles, images). While tile-based approaches have evolved into a defacto standard we feel there are a number of advantages in delivering geospatial data in raw vector formats (XML, GML, Shapefile, etc) to mobile devices including: User personalisation: User can choose which geographical features are displayed, change map themes, set visualisation preferences, etc. Timeliness: The user is always provided with the most up-to-date and recent versions of the spatial data. A number of contraints imposed by the mobile device environment provide major challenges including: screen resolution, available netwo...

http://mural.maynoothuniversity.ie/4977/

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Testing interaction with a mobile MT postediting app (2017)

Torres-Hostench, Olga; Moorkens, Joss; O'Brien, Sharon; Vreeke, Joris

Testing interaction with a mobile MT postediting app (2017)

Torres-Hostench, Olga; Moorkens, Joss; O'Brien, Sharon; Vreeke, Joris

Abstract:

Kanjingo is a post-editing application for iOS devices developed at the ADAPT Centre (formerly CNGL) at Dublin City University (DCU). The first stage of user testing was conducted in 2014 (reported in O’Brien, Moorkens & Vreeke, 2014), and improvements were made based on the initial feedback. This abstract describes further exploratory testing based on the second iteration of the Kanjingo application. The new tests were designed with several aims: (1) testing Kanjingo for post-editing using the phone’s keyboard (2) testing Kanjingo for post-editing with voice input; (3) testing Kanjingo for revision of post-edited texts; (4) testing Kanjingo general usability; and (5) testing Kanjingo interface design. This paper presents the results of the various tests, issues identified, and ideas for improvements. For example, the use of Kanjingo for post-editing with voice input, one of the most innovative forms of interaction with MT in the test, worked much better than participants expect...

http://doras.dcu.ie/23295/