Reference TypeConference Proceedings
Citation KeyTingVidaWata:2011:SnCuVo
Author1 Ting, Wu Shin
2 Vidalón, José Elías Yauri
3 Watanabe, Lionis de Souza
Affiliation1 Unicamp
2 Unicamp
3 Unicamp
TitleSnapping a Cursor on Volume Data
Conference NameConference on Graphics, Patterns and Images, 24 (SIBGRAPI)
EditorLewiner, Thomas
Torres, Ricardo
Book TitleProceedings
DateAug. 28 - 31, 2011
Publisher CityLos Alamitos
PublisherIEEE Computer Society
Conference LocationMaceió
Keywords3D Interactions, Ray-casting, Volume visualization, 3D medical images.
AbstractIn this paper we explore the architecture of GPU-based volume ray-casting to control the cursor movements on surfaces of volume data only on the basis of their sampled scalar values. This method does not rely on building a tight proxy geometry nor computing local iso-surface parametrization. In this setting only a few instructions should be included in a ray-casting shader: at every fragment the depth of the closest non-transparent voxel along each viewing ray is calculated and stored in the depth buffer. Its application in the manipulation of 3D medical images has, however, a broad spectrum. Two of them are presented. The proposed technique is very simple and fast, yet produces very nice and intuitive visual feedbacks.
Tertiary TypeFull Paper
FormatDVD, On-line.
Size1749 KiB
Number of Files1
Target Filewu_vidalon_watanabe.pdf
Last Update2011:
Metadata Last Update2020: administrator {D 2011}
Document Stagecompleted
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History2011-07-23 15:36:12 :: -> administrator :: 2011
2020-02-19 02:19:26 :: administrator -> :: 2011
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Access Date2020, Feb. 21