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Sökning: WFRF:(Persson Anders) > Engelska > Konferensbidrag

  • Resultat 1-10 av 223
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  • Lundström, Claes, 1973-, et al. (författare)
  • The alpha-histogram: Using Spatial Coherence to Enhance Histograms and Transfer Function Design
  • 2006
  • Ingår i: Proceedings Eurographics/IEEE Symposium on Visualization 2006, Lisbon, Portugal. ; s. 227-234
  • Konferensbidrag (övrigt vetenskapligt)abstract
    • The high complexity of Transfer Function (TF) design is a major obstacle to widespread routine use of Direct Volume Rendering, particularly in the case of medical imaging. Both manual and automatic TF design schemes would benefit greatly from a fast and simple method for detection of tissue value ranges. To this end, we introduce the a-histogram, an enhancement that amplifies ranges corresponding to spatially coherent materials. The properties of the a-histogram have been explored for synthetic data sets and then successfully used to detect vessels in 20 Magnetic Resonance angiographies, proving the potential of this approach as a fast and simple technique for histogram enhancement in general and for TF construction in particular.
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  • Persson, Henrik, et al. (författare)
  • B.E.A.C.O.N. - Beacon Emits Audio from Color, Or Not
  • 2013
  • Konferensbidrag (refereegranskat)abstract
    • People who suffer from dementia are often isolated due to lack of ways of communication. In many cases verbal communication can be difficult to perform at all. We created Beacon with the goal to let people with dementia interact with a very simple and intuitive control interface to give them a means of non-verbal communication, and let them take control over the soundscapes that Beacon is capable of producing. In this paper we describe our concept Beacon, its physical form and how the design makes it possible for a person with dementia to control the software by moving around items of different colors and sizes on its surface to create synthesized and sampled sounds. We hope that Beacon will produce positive results among people with dementia, and that the interaction will be rewarding.
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  • Persson, Henry, et al. (författare)
  • Modelling of foam spread on a burning liquid
  • 2001
  • Ingår i: Interflam 2001. International Interflam Conference. 9th proceedings. Vol. 1. September 17-19.. - Interscience Communications Ltd.
  • Konferensbidrag (övrigt vetenskapligt)
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  • Persson, Magnus, et al. (författare)
  • Non-invasive measurement of arterial longitudinal movement
  • 2002
  • Ingår i: Proceedings of the IEEE Ultrasonics Symposium. - IEEE. - 1051-0117. ; 2, s. 1783-1786
  • Konferensbidrag (refereegranskat)abstract
    • In arterial vessel wall characterisation the longitudinal movements of vessels have gained little or no attention. It has been presumed that the arterial vessels move very little in the longitudinal direction. With modern high resolution ultrasound it can, however, be seen that arterial vessels move not only in the circumferential, but also in longitudinal direction. This paper describes a non-invasive, ultrasound based method which estimates the longitudinal and the circumferential movement, respectively. The method is demonstrated in a limited in vivo study of the common carotid artery. Results show that, apart from the well known circumferential movement, there is a distinct longitudinal movement.
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  • Svanberg, Sune, et al. (författare)
  • Applications of terawatt lasers
  • 1994
  • Ingår i: LASER SPECTROSCOPY - XITH INTERNATIONAL CONFERENCE. - 1551-7616 .- 0094-243X. - 1-56396-262-4 ; :290, s. 264-269
  • Konferensbidrag (refereegranskat)
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  • Ynnerman, Anders, 1963-, et al. (författare)
  • Multi-Touch Table System for Medical Visualization
  • 2015
  • Ingår i: Eurographics 2015 : Dirk Bartz Prize. - Eurographics - European Association for Computer Graphics.
  • Konferensbidrag (övrigt vetenskapligt)abstract
    • Medical imaging plays a central role in a vast range of healthcare practices. While the usefulness of 3D visualizations is well known, the adoption of such technology has previously been limited in many medical areas. This paper, awarded the Dirk Bartz Prize for Visual Computing in Medicine 2015, describes the development of a medical multi-touch visualization table that successfully has reached its aim to bring 3D visualization to a wider clinical audience. The descriptions summarize the targeted clinical scenarios, the key characteristics of the system, and the user feedback obtained.
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