Rapid Path Extraction and Three-Dimensional Roaming of the Virtual Endonasal Endoscope
Rapid Path Extraction and Three-Dimensional Roaming of the Virtual Endonasal Endoscope
复制标题
虚拟鼻内窥镜的快速路径提取和三维漫游
DOI：
10.1049/cje.2021.03.002
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发表时间：
2021
影响因子：
1.2
通讯作者：
Luo Yanlin
中科院分区：
文献类型：
--
作者：
Wang Yudong;Han Jing;Pan Junjun;Wang Jing;Cao Yi;Zhu Li;Luo Yanlin
与传统的鼻内镜相比，虚拟鼻内镜（VEE）是一种计算机化的替代解决方案，具有无创、经济实惠、无穿孔、感染风险低，提出了一种基于漫游区域预规划的中心路径提取算法（CPE-PRA），有效地提取了鼻腔模型的中心路径，并提出了一种B-为了使虚拟摄像机具有稳定的转动速度和较宽的视野，提出了基于相对中心偏差（RCD）的样条曲线拟合算法，并通过一系列对比试验验证了算法的有效性和效率。
Compared with traditional endonasal endoscope, Virtual endonasal endoscope(VEE)is a computerized alternative solution with the advantages of being non-invasive, affordable, no perforation, low risk of infection, and high degree of sensitivity.A Central path extraction algorithm based on Pre-planning of the roaming area(CPE-PRA)is proposed to extract the central path of the nasal cavity model efficiently.And a B-spline curve fitting algorithm based on Relative center deviation(RCD)is introduced to fit a smooth curve to the extracted path, so that the virtual camera could have both a steady turning speed and a broad vision.A series of comparison tests were conducted to evaluate the effectiveness and efficiency of the proposed algorithms.