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Wesslén, Daniel
Publications (6 of 6) Show all publications
Seipel, S., Forsberg, A.-K. & Wesslén, D. (2006). Enhanced Visualizations of Thermographic Data in Process Industry. In: Beatriz Sousa Santos and Thomas Ertl and Kenneth I. Joy (Ed.), EuroVis 06. Paper presented at EuroVis06, IEEE VGTC Symposium on Visualization, Lisbon, Portugal, 8-10 May 2006 (pp. 307-314). Eurographics Association
Open this publication in new window or tab >>Enhanced Visualizations of Thermographic Data in Process Industry
2006 (English)In: EuroVis 06 / [ed] Beatriz Sousa Santos and Thomas Ertl and Kenneth I. Joy, Eurographics Association , 2006, p. 307-314Conference paper, Published paper (Other academic)
Abstract [en]

In this paper, we describe an improved method for visualization of thermographic data in the paper and pulp proc-ess industry. We present an application that allows process operators to freely choose how absolute temperatures and time varying changes of thermographic scans should be mapped to colors and/or 3D shapes. Of the possible combinations, we selected two different forms of 3D visualizations and an existing conventional 2D map visualiza-tion. We then evaluated these visualization forms with regard to their effectiveness in experimental field studies. The field tests were carried out to measure the operators’ performance in early detection of insulation damages on lime kilns. The results we obtained from the study show that the two new forms of 3D visualization lead to a reduc-tion of the detection times by about two-thirds and one-third, respectively, when compared to the conventional 2D map representation. Since lime kiln monitoring is based on the rather generic method of continuous thermographic imaging, we suggest that these results also hold for the control and surveillance of other processes.

Place, publisher, year, edition, pages
Eurographics Association, 2006
Keywords
Color, shading, shadowing, texture
Identifiers
urn:nbn:se:hig:diva-1054 (URN)10.2312/VisSym/EuroVis06/307-314 (DOI)3-905673-31-2 (ISBN)
Conference
EuroVis06, IEEE VGTC Symposium on Visualization, Lisbon, Portugal, 8-10 May 2006
Available from: 2007-12-12 Created: 2007-12-12 Last updated: 2018-03-13Bibliographically approved
Wesslén, D. & Seipel, S. (2005). Real-time visualization of animated trees. The Visual Computer, 21(6), 397-405
Open this publication in new window or tab >>Real-time visualization of animated trees
2005 (English)In: The Visual Computer, ISSN 0178-2789, E-ISSN 1432-2315, Vol. 21, no 6, p. 397-405Article in journal (Refereed) Published
Abstract [en]

Realistic visualization of plants and trees has recently received increased interest in various fields of applications. Limited computational power and the extreme complexity of botanical structures have called for tradeoffs between interactivity and realism. In this paper we present methods for the creation and real-time visualization of animated trees. In contrast to other previous research, our work is geared toward near-field visualization of highly detailed areas of forestry scenes with animation. We describe methods for rendering and shading of trees by utilizing the programmable hardware of consumer-grade graphics cards. We then describe a straightforward technique for animation of swaying stems and fluttering foliage that can be executed locally on a graphics processor. Our results show that highly detailed tree structures can be visualized at real-time frame rates and that animation of plant structures can be accomplished without sacrificing performance.

Keywords
Forest visualization, Point rendering, Vertex animation, Tree modeling
Identifiers
urn:nbn:se:hig:diva-1108 (URN)10.1007/s00371-005-0295-1 (DOI)000230991100004 ()
Available from: 2007-12-13 Created: 2007-12-13 Last updated: 2018-03-13Bibliographically approved
Wesslén, D. & Seipel, S. (2004). GPU-assisted Surface Reconstruction and Motion Analysis from Range Scanner Data. In: Proceedings of the Annual SIGRAD Conference. Paper presented at SIGRAD 2004, 24-25 Nov 2004 Gävle, Sweden (pp. 51-52).
Open this publication in new window or tab >>GPU-assisted Surface Reconstruction and Motion Analysis from Range Scanner Data
2004 (English)In: Proceedings of the Annual SIGRAD Conference, 2004, p. 51-52Conference paper, Published paper (Other academic)
Identifiers
urn:nbn:se:hig:diva-1107 (URN)
Conference
SIGRAD 2004, 24-25 Nov 2004 Gävle, Sweden
Available from: 2007-12-13 Created: 2007-12-13 Last updated: 2018-03-13Bibliographically approved
Hast, A., Wesslén, D. & Seipel, S. (2004). Improved Diffuse Anisotropic Shading. In: Proceedings of the Annual SIGRAD Conference. Paper presented at SIGRAD 2004, 24–25 Nov. 2004, Gävle (pp. 57-58).
Open this publication in new window or tab >>Improved Diffuse Anisotropic Shading
2004 (English)In: Proceedings of the Annual SIGRAD Conference, 2004, p. 57-58Conference paper, Published paper (Refereed)
Identifiers
urn:nbn:se:hig:diva-1068 (URN)
Conference
SIGRAD 2004, 24–25 Nov. 2004, Gävle
Available from: 2008-01-11 Created: 2008-01-11 Last updated: 2018-03-13Bibliographically approved
Pettersson, L. W., Wesslén, D. & Seipel, S. (2004). In situ tomographic display for interactive data visualization. In: Proceedings of the third Nordic conference on Human-Computer Interaction. Paper presented at NordiCHI 2004, Tampere, Finland, October 23-27, 2004.
Open this publication in new window or tab >>In situ tomographic display for interactive data visualization
2004 (English)In: Proceedings of the third Nordic conference on Human-Computer Interaction, 2004Conference paper, Published paper (Other academic)
Abstract [en]

With tomographic in situ visualization we present a novel approach to interactive data visualization and exploration. This visualization concept is useful for presentation of spatially co-located information that is normally not visible to the human's eye. The tomographic in situ display allows for interactive cutting through data in space by using a spatially tracked and calibrated display. In this paper we describe the technical apparatus of our prototype and describe an application for the tomographic in situ visualization in the field of indoor climate studies.

Identifiers
urn:nbn:se:hig:diva-1090 (URN)
Conference
NordiCHI 2004, Tampere, Finland, October 23-27, 2004
Available from: 2007-12-13 Created: 2007-12-13 Last updated: 2018-03-13Bibliographically approved
Wesslén, D. & Seipel, S. (2004). The Virtual Forest (Poster). In: Proceedings of the Annual SIGRAD Conference. Paper presented at SIGRAD 2004, 24-25 November, 2004, Gävle, Sweden (pp. 61-61).
Open this publication in new window or tab >>The Virtual Forest (Poster)
2004 (English)In: Proceedings of the Annual SIGRAD Conference, 2004, p. 61-61Conference paper, Published paper (Other academic)
Identifiers
urn:nbn:se:hig:diva-1109 (URN)
Conference
SIGRAD 2004, 24-25 November, 2004, Gävle, Sweden
Available from: 2007-12-13 Created: 2007-12-13 Last updated: 2018-03-13Bibliographically approved
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