TY - GEN
T1 - Volume rendering for high dynamic range displays
AU - Ghosh, Abhijeet
AU - Trentacoste, Matthew
AU - Heidrich, Wolfgang
PY - 2005/12/1
Y1 - 2005/12/1
N2 - Dynamic range restrictions of conventional displays limit the amount of detail that can be represented in volume rendering applications. However, high dynamic range displays with contrast ratios larger than 50,000: 1 have recently been developed. We explore how these increased capabilities can be exploited for common volume rendering algorithms such as direct volume rendering and maximum projection rendering. In particular, we discuss distribution of intensities across the range of the display contrast and a mapping of the transfer function to a perceptually linear space over the range of intensities that the display can produce. This allows us to reserve several just noticeable difference steps of intensities for spatial context apart from clearly depicting the main regions of interest. We also propose generating automatic transfer functions for order independent operators through histogram-equalization of data in perceptually linear space.
AB - Dynamic range restrictions of conventional displays limit the amount of detail that can be represented in volume rendering applications. However, high dynamic range displays with contrast ratios larger than 50,000: 1 have recently been developed. We explore how these increased capabilities can be exploited for common volume rendering algorithms such as direct volume rendering and maximum projection rendering. In particular, we discuss distribution of intensities across the range of the display contrast and a mapping of the transfer function to a perceptually linear space over the range of intensities that the display can produce. This allows us to reserve several just noticeable difference steps of intensities for spatial context apart from clearly depicting the main regions of interest. We also propose generating automatic transfer functions for order independent operators through histogram-equalization of data in perceptually linear space.
KW - Hardware - Novel Display Technologies
KW - Just Noticeable Differences (JNDs)
KW - Rendering - Perceptually Based Rendering
KW - Transfer Functions
KW - Volume Rendering
UR - http://www.scopus.com/inward/record.url?scp=33744721533&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33744721533
SN - 3905673266
SN - 9783905673265
T3 - Volume Graphics 2005 Eurographics/IEEE VGTC Workshop Proceedings - Fourth International Workshop on Volume Graphics
SP - 91
EP - 98
BT - Volume Graphics 2005 Eurographics/IEEE VGTC Workshop Proceedings - Fourth International Workshop on Volume Graphics
T2 - Fourth International Workshop on Volume Graphics 2005
Y2 - 20 June 2005 through 21 June 2005
ER -