Uncertainty visualization using HDR volume rendering

Vijeth Dinesha

doi:10.1007/s00371-011-0614-7

2011-07-05

PRE

Vijeth Dinesha

Neeharika Adabala

Vijay Natarajan *

DOI：10.1007/s00371-011-0614-7

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摘要

En 中文

In this paper, we explore a novel idea of using high dynamic range (HDR) technology for uncertainty visualization. We focus on scalar volumetric data sets where every data point is associated with scalar uncertainty. We design a transfer function that maps each data point to a color in HDR space. The luminance component of the color is exploited to capture uncertainty. We modify existing tone mapping techniques and suitably integrate them with volume ray casting to obtain a low dynamic range (LDR) image. The resulting image is displayed on a conventional 8-bits-per-channel display device. The usage of HDR mapping reveals fine details in uncertainty distribution and enables the users to interactively study the data in the context of corresponding uncertainty information. We demonstrate the utility of our method and evaluate the results using data sets from ocean modeling.

Keyword:

Uncertainty visualization

Transfer function design

Ray casting

Volume rendering

High dynamic range imaging

Tone mapping

期刊

Visual Computer

IF:

2.9

论文数:

4.6K

被引数:

6.5K

机构

indian institute of science (iisc) - bangalore

学者数:

1.4W

论文数: 1.4W

被引数: 11

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