A Novel Ray-Casting Algorithm Using Dynamic Adaptive Sampling

Ray-casting algorithm is an important volume rendering algorithm, which is widely used in medical image processing. Aiming to address the shortcomings of the current ray-casting algorithms in 3D reconstruction of medical images, such as slow rendering speed and low sampling efficiency, an improved a...

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Main Authors:	Huadeng Wang, Guang Xu, Xipeng Pan, Zhenbing Liu, Rushi Lan, Xiaonan Luo
Format:	Article
Language:	English
Published:	Hindawi-Wiley 2020-01-01
Series:	Wireless Communications and Mobile Computing
Online Access:	http://dx.doi.org/10.1155/2020/8822624

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spelling	doaj-a8ce8d6936e04b90aa98540d7355fefe2020-11-25T03:56:34ZengHindawi-WileyWireless Communications and Mobile Computing1530-86691530-86772020-01-01202010.1155/2020/88226248822624A Novel Ray-Casting Algorithm Using Dynamic Adaptive SamplingHuadeng Wang0Guang Xu1Xipeng Pan2Zhenbing Liu3Rushi Lan4Xiaonan Luo5School of Computer and Information Security, Guilin University of Electronic Technology, Guilin, ChinaSchool of Computer and Information Security, Guilin University of Electronic Technology, Guilin, ChinaSchool of Computer and Information Security, Guilin University of Electronic Technology, Guilin, ChinaSchool of Computer and Information Security, Guilin University of Electronic Technology, Guilin, ChinaSchool of Computer and Information Security, Guilin University of Electronic Technology, Guilin, ChinaNational Local Joint Engineering Research Center of Satellite Navigation and Location Service, ChinaRay-casting algorithm is an important volume rendering algorithm, which is widely used in medical image processing. Aiming to address the shortcomings of the current ray-casting algorithms in 3D reconstruction of medical images, such as slow rendering speed and low sampling efficiency, an improved algorithm based on dynamic adaptive sampling is proposed. By using the central difference gradient method, the corresponding sampling interval is obtained dynamically according to the different sampling points. Meanwhile, a new rendering operator is proposed based on the color value and opacity changes before and after the ray enters the volume element, and the resistance luminosity. Compared with the state of other algorithms, experimental results show that the method proposed in this paper has a faster rendering speed while ensuring the quality of the generated image.http://dx.doi.org/10.1155/2020/8822624
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Huadeng Wang Guang Xu Xipeng Pan Zhenbing Liu Rushi Lan Xiaonan Luo
spellingShingle	Huadeng Wang Guang Xu Xipeng Pan Zhenbing Liu Rushi Lan Xiaonan Luo A Novel Ray-Casting Algorithm Using Dynamic Adaptive Sampling Wireless Communications and Mobile Computing
author_facet	Huadeng Wang Guang Xu Xipeng Pan Zhenbing Liu Rushi Lan Xiaonan Luo
author_sort	Huadeng Wang
title	A Novel Ray-Casting Algorithm Using Dynamic Adaptive Sampling
title_short	A Novel Ray-Casting Algorithm Using Dynamic Adaptive Sampling
title_full	A Novel Ray-Casting Algorithm Using Dynamic Adaptive Sampling
title_fullStr	A Novel Ray-Casting Algorithm Using Dynamic Adaptive Sampling
title_full_unstemmed	A Novel Ray-Casting Algorithm Using Dynamic Adaptive Sampling
title_sort	novel ray-casting algorithm using dynamic adaptive sampling
publisher	Hindawi-Wiley
series	Wireless Communications and Mobile Computing
issn	1530-8669 1530-8677
publishDate	2020-01-01
description	Ray-casting algorithm is an important volume rendering algorithm, which is widely used in medical image processing. Aiming to address the shortcomings of the current ray-casting algorithms in 3D reconstruction of medical images, such as slow rendering speed and low sampling efficiency, an improved algorithm based on dynamic adaptive sampling is proposed. By using the central difference gradient method, the corresponding sampling interval is obtained dynamically according to the different sampling points. Meanwhile, a new rendering operator is proposed based on the color value and opacity changes before and after the ray enters the volume element, and the resistance luminosity. Compared with the state of other algorithms, experimental results show that the method proposed in this paper has a faster rendering speed while ensuring the quality of the generated image.
url	http://dx.doi.org/10.1155/2020/8822624
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A Novel Ray-Casting Algorithm Using Dynamic Adaptive Sampling

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