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Issue No.11 - Nov. (2012 vol.18)
pp: 1928-1941
Xin Zhao , Comput. Sci. Dept., Stony Brook Univ., Stony Brook, NY, USA
Wei Zeng , Comput. Sci. Dept., Stony Brook Univ., Stony Brook, NY, USA
Xianfeng David Gu , Comput. Sci. Dept., Stony Brook Univ., Stony Brook, NY, USA
Arie E. Kaufman , Comput. Sci. Dept., Stony Brook Univ., Stony Brook, NY, USA
Wei Xu , Comput. Sci. Dept., Stony Brook Univ., Stony Brook, NY, USA
Klaus Mueller , Comput. Sci. Dept., Stony Brook Univ., Stony Brook, NY, USA
ABSTRACT
We present the conformal magnifier, a novel interactive focus+context visualization technique that magnifies a region of interest (ROI) using conformal mapping. Our framework supports the arbitrary shape design of magnifiers for the user to enlarge the ROI while globally deforming the context region without any cropping. By using the mathematically well-defined conformal mapping theory and algorithm, the ROI is magnified with local shape preservation (angle distortion minimization), while the transition area between the focus and context regions is deformed smoothly and continuously. After the selection of a specified magnifier shape, our system can automatically magnify the ROI in real time with full resolution even for large volumetric data sets. These properties are important for many visualization applications, especially for the computer aided detection and diagnosis (CAD). Our framework is suitable for diverse applications, including the map visualization, and volumetric visualization. Experimental results demonstrate the effectiveness, robustness, and efficiency of our framework.
INDEX TERMS
deformation, CAD, conformal mapping, data visualisation, volumetric visualization, conformal magnifier, local shape preservation, interactive focus-context visualization technique, region of interest, ROI, arbitrary shape magnifiers design, mathematically well-defined conformal mapping theory, specified magnifier shape, large volumetric data sets, computer aided detection, computer aided diagnosis, CAD, map visualization, Lenses, Shape, Conformal mapping, Context, Measurement, Three dimensional displays, Mathematical model, local shape preservation, Conformal mapping, focus+contex visualization, magnifier shape, smooth deformation
CITATION
Xin Zhao, Wei Zeng, Xianfeng David Gu, Arie E. Kaufman, Wei Xu, Klaus Mueller, "Conformal Magnifier: A Focus+Context Technique with Local Shape Preservation", IEEE Transactions on Visualization & Computer Graphics, vol.18, no. 11, pp. 1928-1941, Nov. 2012, doi:10.1109/TVCG.2012.70
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