CT用于非人体目标几何体的三维重建

doi:10.3969/j.issn.0255-8297.2024.02.009

应用科学学报 ›› 2024, Vol. 42 ›› Issue (2): 280-289.doi: 10.3969/j.issn.0255-8297.2024.02.009

CT用于非人体目标几何体的三维重建

董静娴¹, 马婧闻¹, 蔡鸿森¹, 李欣², 邓先波³, 侯文广¹

1. 华中科技大学生命科学与技术学院, 湖北武汉 430074;
2. 武汉大学遥感信息工程学院, 湖北武汉 430079;
3. 华中科技大学同济医学院附属协和医院, 湖北武汉 430022

收稿日期:2022-06-28 出版日期:2024-03-31 发布日期:2024-03-28
通信作者: 侯文广,副研究员,研究方向为模式识别、计算机图形学。E-mail:houwenguang99@163.com E-mail:houwenguang99@163.com
基金资助:
国家自然科学基金（No.42171434，No.42211530458）资助

CT Based Non-human Tissue 3D Reconstruction

DONG Jingxian¹, MA Jingwen¹, CAI Hongsen¹, LI Xin², DENG Xianbo³, HOU Wenguang¹

1. College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China;
2. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, Hubei, China;
3. Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China

Received:2022-06-28 Online:2024-03-31 Published:2024-03-28

摘要/Abstract

摘要： 当被扫描物体存在镂空、遮挡和狭小空间时，需要大量图像拍摄或激光扫描工作；利用三维点云构建三角网格时，需要大量人工交互操作，且三维面绘制容易丢失特征信息。为解决上述问题，提出了采用CT对非人体目标几何体进行三维重建，再用体绘制进行显示的方法。基于医用CT对瓷器、陶器、木器和青铜器等材质的工艺品进行三维扫描，直接基于体绘制算法进行三维显示，同时提取CT图像轮廓点实现面绘制建模。结果表明，CT扫描重建精度高、体绘制效果好且人工工作量小、速度快。因此CT扫描及体绘制在非人体目标的三维重建中具有可行性，并且可以提高效率和精度。

关键词: 三维重建, CT扫描, 面绘制, 体绘制, 逆向工程

Abstract: In scenarios involving hollowed-out structures, occlusions and narrow spaces, the scanning process tend to be lengthy. Moreover, substantial manual interaction is often required for mesh generation, and the effect of 3D surface rendering is not always ideal. This paper attempts to perform 3D scanning for various handicrafts made of porcelain, pottery, wood and bronze based on medical CT. Contour points on each image are extracted to obtain 3D point cloud, subsequently facilitating surface rendering through meshing. Meanwhile, 3D display is directly conducted based on a volume rendering algorithm. The results indicate the superiority of volume rendering over surface rendering, as it reveals more detailed information and involves fewer manual operations. Quantitative accuracy evaluation demonstrates the feasibility and efficiency of CT-based non-human tissue 3D reconstruction.

Key words: 3D reconstruction, CT scanning, surface rendering, volume rendering, reverse engineering

中图分类号:

TP391

董静娴, 马婧闻, 蔡鸿森, 李欣, 邓先波, 侯文广. CT用于非人体目标几何体的三维重建[J]. 应用科学学报, 2024, 42(2): 280-289.

DONG Jingxian, MA Jingwen, CAI Hongsen, LI Xin, DENG Xianbo, HOU Wenguang. CT Based Non-human Tissue 3D Reconstruction[J]. Journal of Applied Sciences, 2024, 42(2): 280-289.

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CT用于非人体目标几何体的三维重建

CT Based Non-human Tissue 3D Reconstruction

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