Authors: Yuusuke Tsukamoto Shuhei Kawashima Seiji Inoue Shin Ito Shinji Kataoka Kazuyuki Kojima Kyoko Hasegawa Susumu Nakata Satoshi Tanaka
Publish Date: 2011/03/12
Volume: 14, Issue: 2, Pages: 161-170
Abstract
Volume graphics is a key technology in fields such as fluid dynamics and medical science The visualization of volume data requires the creation of a continuous scalar field to exactly or approximately interpolate scalar values assigned to the discrete voxels In the present paper we propose a method that we refer to as the volumic version of the multilevel partition of unity volumic MPU The method approximately interpolates the scalar values with good precision to generate a scalar field that is continuous up to secondorder differentiation The volumic MPU being independent of grid structures of input volume data is applicable to both irregulargrid data and regular grid data The volumic MPU can also be used as an effective datacompression technique The speed to evaluate the created scalar field is almost as high as that of trilinear interpolation
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