| 基于目标量化模型的三维血管切片重建 |
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| 引用本文： | 俞恒永,牟轩沁,蔡元龙.基于目标量化模型的三维血管切片重建[J].生物医学工程学杂志,2003,20(2):318-321. |
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| 作者姓名： | 俞恒永 牟轩沁 蔡元龙 |
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| 作者单位： | 西安交通大学图像处理与识别研究所,西安,710049 |
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| 基金项目： | 国家自然科学基金资助项目 (3 0 0 70 2 2 5 )，国家“863计划”资助项目 (863 -3 0 6-0 6-0 6) |
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| 摘 要： | 针对旋转DSA(Digital subtraction angiography)三维重建中成像模型不够精确的问题，首先引入了一种基于目标的非线性量化模型，该模型将三维血管切片投影图像量化为投影光线穿过的血管数目。提出了分割自引导重建算法，它尤其适合于解决稀疏投影与有限角度投影的切片重建问题。仿真试验结果表明本文提出的模型和算法是合理有效的。
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| 关 键 词： | 血管切片 三维重建 目标量化模型 心脑血管疾病 |
Slice Reconstruction of 3D Vessel Based on Object-oriented Quantization |
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| Yu Hengyong,Mou Xuanqin,Cai Yuanlong.Slice Reconstruction of 3D Vessel Based on Object-oriented Quantization[J].Journal of Biomedical Engineering,2003,20(2):318-321. |
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| Authors: | Yu Hengyong Mou Xuanqin Cai Yuanlong |
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| Institution: | Institute of Image Processing, Xi'an Jiaotong University, Xi'an 710049. |
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| Abstract: | Aiming at the problem of inaccurate imaging model of three dimensional (3D) reconstruction of rotational digital subtraction angiography (DSA), a nonlinear model based on object oriented quantization is introduced first. The model quantizes the projection pixel of 3D vessel slice as the number of vessels which the X ray goes through. Furthermore, a slice reconstruction algorithm named segment self guide reconstruction (SSGR) is developed. The SSGR is especially suitable for solving the problem of sparse projection and limited views. Finally, the simulated results have proved the feasibility of the model and the validity of the algorithm. |
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| Keywords: | Rotational DSA 3D reconstruction Segment self guide reconstruction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
