Title:	A 3D-SHOCKWAVE VOLUME RENDERING ALGORITHM BASED ON FEATURE BOUNDARY DETECTION
Author(s):	Huawei Wang, Liu He, Zhiwei Ai, and Yi Cao
ISBN:	978-989-8704-21-4
Editors:	Yingcai Xiao, Ajith P. Abraham and Jörg Roth
Year:	2020
Edition:	Single
Keywords:	Shockwave, Volume Rendering, Boundary Detection, Wavefront, Visualization
Type:	Full
First Page:	11
Last Page:	18
Language:	English
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Paper Abstract:	The mechanism of shockwave propagation in complex environments plays an important role in the damage and protection assessment. At present, domain experts are realizing shockwave propagation numerical simulations with high scientific confidence on thousands of processing cores, and thus large-scale three-dimensional (3D) data fields containing fine physical features are output. It is desired to effectively reveal complex spatial structures of shockwaves in the data fields so as to facilitate domain experts to make in-depth observation and analysis. In this paper, a volume rendering algorithm based on feature boundary detection is proposed to visualize 3D shockwave data fields. In the algorithm, a two-dimensional (2D) boundary detection technique is generalized to the 3D case and further used to extract feature data containing the wavefronts, and then, the feature data are resampled and composited in the ray-casting manner. The algorithm has been preliminarily applied to 3D shock fields, and the results show that the algorithm can effectively analyze the shockwave features and clearly show the 3D spatial structures of the wavefronts.
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