2.50
Hdl Handle:
http://hdl.handle.net/10547/226012
Title:
Shape-enhanced maximum intensity projection
Authors:
Zhou, Zhiguang; Tao, Yubo; Lin, Hai; Dong, Feng; Clapworthy, Gordon J.
Abstract:
Maximum intensity projection (MIP) displays the voxel with the maximum intensity along the viewing ray, and this offers simplicity in usage, as it does not require a complex transfer function, the specification of which is a highly challenging and time-consuming process in direct volume rendering (DVR). However, MIP also has its inherent limitation, the loss of spatial context and shape information. This paper proposes a novel technique, shape-enhanced maximum intensity projection (SEMIP), to resolve this limitation. Inspired by lighting in DVR to emphasize surface structures, SEMIP searches a valid gradient for the maximum intensity of each viewing ray, and applies gradient-based shading to improve shape and depth perception of structures. As SEMIP may result in the pixel values over the maximum intensity of the display device, a tone reduction technique is introduced to compress the intensity range of the rendered image while preserving the original local contrast. In addition, depth-based color cues are employed to enhance the visual perception of internal structures, and a focus and context interaction is used to highlight structures of interest. We demonstrate the effectiveness of the proposed SEMIP with several volume data sets, especially from the medical field.
Citation:
Zhou, Z., Tao, Y., Lin, H., Dong, F. & Clapworthy, G.J. (2011) 'Shape-enhanced maximum intensity projection', The Visual Computer, 6 (8), pp.677-686.
Publisher:
SpringerLink
Journal:
The Visual Computer
Issue Date:
2011
URI:
http://hdl.handle.net/10547/226012
DOI:
10.1007/s00371-011-0570-2
Additional Links:
http://www.springerlink.com/index/10.1007/s00371-011-0570-2
Type:
Article
Language:
en
ISSN:
0178-2789; 1432-2315
Appears in Collections:
Centre for Computer Graphics and Visualisation (CCGV)

Full metadata record

DC FieldValue Language
dc.contributor.authorZhou, Zhiguangen_GB
dc.contributor.authorTao, Yuboen_GB
dc.contributor.authorLin, Haien_GB
dc.contributor.authorDong, Fengen_GB
dc.contributor.authorClapworthy, Gordon J.en_GB
dc.date.accessioned2012-05-25T13:21:32Z-
dc.date.available2012-05-25T13:21:32Z-
dc.date.issued2011-
dc.identifier.citationZhou, Z., Tao, Y., Lin, H., Dong, F. & Clapworthy, G.J. (2011) 'Shape-enhanced maximum intensity projection', The Visual Computer, 6 (8), pp.677-686.en_GB
dc.identifier.issn0178-2789-
dc.identifier.issn1432-2315-
dc.identifier.doi10.1007/s00371-011-0570-2-
dc.identifier.urihttp://hdl.handle.net/10547/226012-
dc.description.abstractMaximum intensity projection (MIP) displays the voxel with the maximum intensity along the viewing ray, and this offers simplicity in usage, as it does not require a complex transfer function, the specification of which is a highly challenging and time-consuming process in direct volume rendering (DVR). However, MIP also has its inherent limitation, the loss of spatial context and shape information. This paper proposes a novel technique, shape-enhanced maximum intensity projection (SEMIP), to resolve this limitation. Inspired by lighting in DVR to emphasize surface structures, SEMIP searches a valid gradient for the maximum intensity of each viewing ray, and applies gradient-based shading to improve shape and depth perception of structures. As SEMIP may result in the pixel values over the maximum intensity of the display device, a tone reduction technique is introduced to compress the intensity range of the rendered image while preserving the original local contrast. In addition, depth-based color cues are employed to enhance the visual perception of internal structures, and a focus and context interaction is used to highlight structures of interest. We demonstrate the effectiveness of the proposed SEMIP with several volume data sets, especially from the medical field.en_GB
dc.language.isoenen
dc.publisherSpringerLinken_GB
dc.relation.urlhttp://www.springerlink.com/index/10.1007/s00371-011-0570-2en_GB
dc.rightsArchived with thanks to The Visual Computeren_GB
dc.subjectmaximum intensity projectionen_GB
dc.subjectphong shadingen_GB
dc.subjecttone reductionen_GB
dc.subjectdepth-based colouren_GB
dc.subjectshape perceptionen_GB
dc.titleShape-enhanced maximum intensity projectionen
dc.typeArticleen
dc.identifier.journalThe Visual Computeren_GB
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