Information
- Publication Type: Technical Report
- Workgroup(s)/Project(s): not specified
- Date: April 1999
- Number: TR-186-2-99-10
- Keywords: angiography, Maximum Intensity Projection, Volume Visualization
Abstract
Maximum Intensity Projection (MIP) is a volume rendering technique which is used to extract high-intensity structures from volumetric data. At each pixel the highest data value encountered along the corresponding viewing ray is determined. MIP is commonly used to extract vascular structures from medical MRI data sets (angiography). Due to lack of depth information in MIP images, animation of the viewpoint is frequently used for viewing. Although interactive MIP algorithms exist, the quality of the results is moderate. The generation of high-quality MIP animation loops is computationally expensive with rendering times of several seconds per frame. In this paper we present a fast algorithm for high-quality MIP. Cells of the data set which will never contribute to a MIP due to their neighborhood are removed during a preprocessing step. The remaining cells are stored in a way which improves cache coherency independent of the viewing direction and minimizes the number of required maximum evaluations.Additional Files and Images
Weblinks
No further information available.BibTeX
@techreport{Mroz-1999-Adv, title = "Advanced High-Quality Maximum Intensity Projection for Volume Visualization", author = "Lukas Mroz and Helwig L\"{o}ffelmann and Eduard Gr\"{o}ller", year = "1999", abstract = "Maximum Intensity Projection (MIP) is a volume rendering technique which is used to extract high-intensity structures from volumetric data. At each pixel the highest data value encountered along the corresponding viewing ray is determined. MIP is commonly used to extract vascular structures from medical MRI data sets (angiography). Due to lack of depth information in MIP images, animation of the viewpoint is frequently used for viewing. Although interactive MIP algorithms exist, the quality of the results is moderate. The generation of high-quality MIP animation loops is computationally expensive with rendering times of several seconds per frame. In this paper we present a fast algorithm for high-quality MIP. Cells of the data set which will never contribute to a MIP due to their neighborhood are removed during a preprocessing step. The remaining cells are stored in a way which improves cache coherency independent of the viewing direction and minimizes the number of required maximum evaluations.", month = apr, number = "TR-186-2-99-10", address = "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria", institution = "Institute of Computer Graphics and Algorithms, Vienna University of Technology ", note = "human contact: technical-report@cg.tuwien.ac.at", keywords = "angiography, Maximum Intensity Projection, Volume Visualization", URL = "https://www.cg.tuwien.ac.at/research/publications/1999/Mroz-1999-Adv/", }