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 Claus Brøndgaard Madsen

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Average citations per article1.87
Citation Count28
Publication count15
Publication years2002-2016
Available for download2
Average downloads per article249.00
Downloads (cumulative)498
Downloads (12 Months)109
Downloads (6 Weeks)18
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15 results found Export Results: bibtexendnoteacmrefcsv

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1
April 2016 IEEE Transactions on Visualization and Computer Graphics: Volume 22 Issue 4, April 2016
Publisher: IEEE Educational Activities Department
Bibliometrics:
Citation Count: 2

Temporal coherence of annotations is an important factor in augmented reality user interfaces and for information visualization. In this paper, we empirically evaluate four different techniques for annotation. Based on these findings, we follow up with subjective evaluations in a second experiment. Results show that presenting annotations in object space ...

2 published by ACM
November 2015 Journal on Computing and Cultural Heritage (JOCCH): Volume 9 Issue 1, February 2016
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 18,   Downloads (12 Months): 106,   Downloads (Overall): 304

Full text available: PDFPDF
We have experienced rapid development in Augmented Reality (AR) systems and platforms in the world of cultural heritage, namely in cultural settings and historical museums. However, we still face a range of challenges to design an AR system that meets the requirements for an AR installation working autonomously in a ...
Keywords: Augmented reality, museums, virtual heritage, visualization

3
March 2012 VR '12: Proceedings of the 2012 IEEE Virtual Reality
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 0

When viewing 3-D scatterplots in immersive virtual environments, one commonly encountered problem is the presence of clutter, which obscures the view of any structures of interest in the visualization. In order to solve this problem, we propose to render the 3-D glyphs such that they always cover the the same ...

4
September 2011 IMVIP '11: Proceedings of the 2011 Irish Machine Vision and Image Processing Conference
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 0

We have proposed a technique to detect diffuse reflectance behavior pixels in real-time from a time-lapsed low dynamic range image sequence of the outdoor scene under few assumptions, unknown dynamic illumination and without using calibration objects. Each pixel analysis is done at the arrival of the every input image of ...
Keywords: Augmented Reality, Reflectance Estimation, Stereo

5
March 2011 VR '11: Proceedings of the 2011 IEEE Virtual Reality Conference
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 2

Enabling users to shape 3-D boxes in immersive virtual environments is a non-trivial problem. In this paper, a new family of techniques for creating rectangular boxes of arbitrary position, orientation, and size is presented and evaluated. These new techniques are based solely on position data, making them different from typical, ...
Keywords: box rotation, 3D box shaping technique, 9 degree-of-freedom docking experiment, virtual environments, rectangular box creation, box scaling

6
September 2009 Dyn3D '09: Proceedings of the DAGM 2009 Workshop on Dynamic 3D Imaging
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 3

We present a system for detecting shadows in dynamic outdoor scenes. The technique is based on fusing background subtraction operations performed on both color and disparity data, respectively. A simple geometrical analysis results in an ability to classify pixels into foreground, shadow candidate, and background. The shadow candidates are further ...
Keywords: Shadows, color, chromaticity, stereo, illumination

7
June 2007 SCIA'07: Proceedings of the 15th Scandinavian conference on Image analysis
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 4

This paper introduces a new concept within shadow segmentation for usage in shadow removal and augmentation through construction of a multiplicity alpha overlay shadow model. Previously, an image was considered to consist of shadow and non-shadow regions. This makes it difficult to seamlessly remove shadows and insert augmented shadows that ...
Keywords: augmented reality, graph cuts, shadow segmentation

8
June 2007 SCIA'07: Proceedings of the 15th Scandinavian conference on Image analysis
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 0

Image-Based Lighting (IBL) has become a very popular approach in computer graphics. In essence IBL is based on capturing the illumination conditions in a scene in an omni-directional image, called a light probe image. Using the illumination information from such an image virtual objects can be rendered with consistent shading ...
Keywords: augmented reality, image-based lighting, irradiance, real-time rendering, directional light sources, median cut

9
March 2007 MIRAGE'07: Proceedings of the 3rd international conference on Computer vision/computer graphics collaboration techniques
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 4

This paper introduces a new concept within shadow segmentation for usage in shadow removal and augmentation through construction of an alpha overlay shadow model. Previously, an image was considered to consist of shadow and non-shadow regions. We construct a model that accounts for sunlit, umbra and penumbra regions. The model ...

10
August 2006 ICPR '06: Proceedings of the 18th International Conference on Pattern Recognition - Volume 04
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 3

The the work presented in this paper explores how dynamical light parameters in an outdoor environment can be estimated for use in a real-time augmented reality (AR) system. A method using existing inverse rendering techniques is used to acquire diffuse surface reflectances in an offline procedure. The reflectances are used ...

11
April 2005 Integrated Computer-Aided Engineering: Volume 12 Issue 2, April 2005
Publisher: IOS Press
Bibliometrics:
Citation Count: 6

In model-based computer vision it is necessary to have a geometric model of the object the pose of which is being estimated. In this paper a very compact model of the human shoulder complex and arm is presented. First an investigation of the anatomy of the arm and the shoulder ...

12
October 2003 ISMAR '03: Proceedings of the 2nd IEEE/ACM International Symposium on Mixed and Augmented Reality
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 0,   Downloads (12 Months): 3,   Downloads (Overall): 194

Full text available: PDFPDF

13
June 2003 SCIA'03: Proceedings of the 13th Scandinavian conference on Image analysis
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 3

In Augmented Reality (AR) real imagery is superimposed by computer graphics renderings of virtual objects. This paper addresses the problem of creating the illusion that the virtual objects cast credible shadows in the real scenario. A step towards this is to be able to detect shadow regions in images of ...

14
June 2003 SCIA'03: Proceedings of the 13th Scandinavian conference on Image analysis
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 0

In this paper, an extended P3P (Perspective Three Points) problem is investigated. It is formulated as fitting three moving vertices along their associated optical rays to a known triangle structure. This allows the three optical rays to come from one, two or three cameras respectively. The classical P3P problem for ...

15
January 2002 Virtual space: spatiality in virtual inhabited 3D worlds
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 0




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