[1]王逸夫,王瑜,邢素霞,等.基于改进光线投射法的冠脉图像三维重建[J].中国医学物理学杂志,2021,38(4):431-435.[doi:DOI:10.3969/j.issn.1005-202X.2021.04.007]
　WANG Yifu,WANG Yu,XING Suxia,et al.3D image reconstruction of coronary angiography based on improved ray-casting volume rendering algorithm[J].Chinese Journal of Medical Physics,2021,38(4):431-435.[doi:DOI:10.3969/j.issn.1005-202X.2021.04.007]
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基于改进光线投射法的冠脉图像三维重建()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
38卷
期数:
2021年第4期
页码:
431-435
栏目:
医学影像物理
出版日期:
2021-04-29

文章信息/Info

Title:
3D image reconstruction of coronary angiography based on improved ray-casting volume rendering algorithm
文章编号:
1005-202X（2021）04-0431-05
作者:
王逸夫1; 王瑜1; 邢素霞1; 王怡宁2; 易妍2
1.北京工商大学人工智能学院， 北京 100048； 2.中国医学科学院北京协和医院， 北京 100730
Author(s):
WANG Yifu1;  WANG Yu1;  XING Suxia1;  WANG Yining2;  YI Yan2
1. School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, China 2. Peking Union Medical College Hospital, Beijing 100730, China
关键词:
光线投射算法; 冠脉图像; 三线性插值; 重采样; 空体素
Keywords:
Keywords: ray-casting volume rendering algorithm coronary angiography trilinear interpolation re-sampling empty voxel
分类号:
R318；R445
DOI:
DOI:10.3969/j.issn.1005-202X.2021.04.007
文献标志码:
A
摘要:
传统光线投射算法虽然绘制图像时能取得良好的效果，但因为运算速度较慢，限制了其广泛应用。为了在图像三维重建时既能保证质量，又能提高实时交互性，本文提出一种基于改进光线投射算法的冠脉三维重建方法，利用检测原数据点的数据值来简化重采样中三线性插值的复杂性，并结合切比雪夫空体素跳跃法，进一步提高算法的效率。实验结果表明，该算法能够在提高运算速度的同时，保证绘制冠脉三维图像的质量。
Abstract:
Abstract: The traditional ray-casing volume rendering algorithm can achieve good results in image reconstruction, but the slow operation speed limits its wide application. Based on an improved ray-casting volume rendering algorithm, a method for 3D image reconstruction of coronary angiography is proposed to ensure image quality and improve real-time interactivity during 3D image reconstruction. In the proposed method, the values of the detected original data points are used to simplify the complexity of trilinear interpolation during re-sampling, and the efficiency of the algorithm is further improved by combining with Chebyshev empty voxel jumping method. Experimental results show that the proposed algorithm can improve the calculation speed while ensuring the image quality in 3D image reconstruction of coronary angiography.

相似文献/References:

[1]宫宁,王瑜,王逸夫,等.基于反距离加权插值和改进采样点数据合成的医学影像三维重建[J].中国医学物理学杂志,2022,39(12):1510.[doi:DOI:10.3969/j.issn.1005-202X.2022.12.009]
　GONG Ning,WANG Yu,WANG Yifu,et al.Three-dimensional medical image reconstruction using inverse distance weight and improved data synthesis of sampling points[J].Chinese Journal of Medical Physics,2022,39(4):1510.[doi:DOI:10.3969/j.issn.1005-202X.2022.12.009]
[2]王亚晨,王瑜,宫宁,等.基于改进预积分技术的光线投射三维重建算法[J].中国医学物理学杂志,2024,41(9):1133.[doi:DOI:10.3969/j.issn.1005-202X.2024.09.011]
　WANG Yachen,WANG Yu,GONG Ning,et al.Ray casting algorithm for three-dimensional reconstruction based on improved pre-integration technology[J].Chinese Journal of Medical Physics,2024,41(4):1133.[doi:DOI:10.3969/j.issn.1005-202X.2024.09.011]

备注/Memo

备注/Memo:
【收稿日期】2020-10-22 【基金项目】国家自然科学基金（61671028） 【作者简介】王逸夫，硕士研究生，研究方向：图像处理、模式识别，E-mail: 496161006@qq.com 【通信作者】王瑜，博士后，教授，博士生导师，CCF会员，研究方向：图像处理、模式识别，E-mail: wangyu@btbu.edu.cn
更新日期/Last Update: 2021-04-29