Author Archives: Ciril Bohak

HCI-IS 2014

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Today we have successfully completed the HCI-IS 2014 conference. This was the 3rd event organised by the HCI.si community, an international conference on Human Computer Interaction in Information Society. The conference was organised in scope of Information Society Conference organised by Jožef Stefan Institute.

ijsair

(Foto: www.ijs.si)

There were seven contributions accepted to the conference and a keynote talk.

  • UX – From theory to practical application – Keynote
    (Jože Guna, Emilia Stojmenova, Matevž Pogačnik)
  • Multi-Touch surface based on RGBD camera
    (Klemen Istenič, Luka Čehovin, Daniel Skočaj)
  • Using Kinect for touchless interaction with existing applications
    (Andrej Černivec, Ciril Bohak)
  • An improved visualization of LiDAR data using level of details and weighted color mapping
    (Sašo Pečnik, Danijel Žlaus, Domen Mongus, Borut Žalik)
  • Student’ acceptance of animated interactive presentation of sorting algorithms
    (Mario Konecki, Vladimir Mrkela)
  • Use of UX and HCI tools among start-ups
    (Bojan Blažica)
  • Decision support in emergency call service
    (Miha Ristič, Franc Novak)
  • Mobile and responsive web applications
    (Mario Konecki)

Luka Čehovin presenting @ HCI-IS 2014

Evaluation of input devices for view manipulation in 3D space

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Few weeks ago there Peter Škrlj has completed his Bachelor Thesis titled: Evaluation of input devices for view manipulation in 3D space.

The thesis is in Slovenian language and is accessible here. Below you can find a short abstract.

Abstract

As part of the thesis we have developed applications for the extension of the vein display with support for two additional navigation devices (3D Connexion Space Navigator Mouse and hand gesture based navigation device Leap Motion) which represented an extension of possible input devices besides the keyboard and a mouse to manipulate the view of 3D model of neck veins. In addition to the implementation of support for the device in the application we carried out a user study in which we assessed the usability and ease of use of devices in the application. The results consisted from data we collected from the users’ experience while they solved various manipulation tasks and the answers received from questionnaires SUS (System Usability Scale) which constitute one of the tools with which we can assess interfaces. Analysis of the results confirmed that the 3D mouse is more useful in such an environment and also highlighted some shortcomings of the hands free navigation device Leap Motion.

Using Leap Motion for touchless navigation in a web browser

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In the context of Bachelor Thesis at the Faculty of Computer and Information Science, a student Miloš Vukov has developed a Chrome extension for Leap Motion. In this diploma thesis, a Chrome browser extension for touch-less navigation in a web browser was developed. The ready-made extension uses the Leap Motion sensor and enables internet browsing by navigating through the links and moving along the tabs with the help of gestures.

The results of thesis are available on-line:

For more information one can contact the author.

Toward improved emergency call service: a usability test case study

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Miha Ristič & Franc Novak

Abstract

This paper describes the initial steps for the improvement of emergency call service. For instance, persons reporting an accident or similar event and the officer receiving the call are often under stress, which distracts the communication process and becomes a barrier to information transfer. We try to identify the main deficiencies when processing a received call and explore alternative ways of recording the main information content. In this regard we performed a usability test case study for assessing the efficiency of recording information either on a blank paper or in a prepared paper form. Implementation details of the usability test are described.

[Link]

How to provide health-related information by mobile computing?

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Barbara Koroušić Seljak

Abstract

The paper describes an approach taken by a mobile application eDietetik for the presentation of health- related information that is not allowed to be provided as a health claim. In this case, a mobile device running the application interacts with consumers, translating health-related information in an understandable and unambiguous way. Moreover, it may present an interface between different human stakeholders (i.e. consumers and manufacturers, consumers and healthcare providers, manufacturers and policy-makers).

[Link]

Wireless medical device audio alarm

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Marko Pavlin

Abstract

Audio alarming system for medical devices requires attention at some very specific segments. The clinical environment is full of disturbances and every alarm sound is not an exception. This paper presents some aspects of (audio) alarming within clinical environment and associated problems. Low power operation and limited resources for implementation are just on top of the problems related to the user experience. The presented solution is following the specific standards and is flexible enough to provide audio signals, which can be generated with small microcontroller. The described alarm generator was evaluated in laboratory and during clinical evaluation in real clinical environment with patients. The results are presented at the end of the paper.

[Link]