| 陈若平,丁美修,许先行,薛德杰.颅底骨性结构的三维立体仿真测量[J].中国医学影像技术,2000,16(2):166~167 |
| 颅底骨性结构的三维立体仿真测量 |
| Three-Dimensional Virtual Stereomeasurement Skeleton Struture of Skull Base |
| 投稿时间：1999-07-20 |
| DOI： |
| 中文关键词: 颅底骨性结构 计算机图像处理技术 三维仿真立体测量 |
| 英文关键词:Skeleton structure of skull base Techniques of computer assisted graphic analysis Three dimensional virtual stereomeasurement |
| 基金项目: |
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| 摘要点击次数: 1156 |
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| 中文摘要: |
| 目的 以快速、简便的方法高精度地立体测量颅底的骨性结构。方法 建立颅底骨性结构的三维图像,确定图像上各象素的三维坐标。按公式L = (X1-X2) 2 + ( Y1-Y2) 2 + (Z1-Z2) 2 计算出三维图像上任意二点间的距
离。以C++ 语言编制应用程序。并以三坐标激光测距仪的立体测量对照。结果 以三坐标激光测距仪立体测量作
为标准,三维仿真立体测量的精度为011mm。一致性检验P = 01999 二者高度一致。结论 以计算机图像处理技术
为基础的三维虚拟立体测量技术可以对颅底骨性结构进行高精度的立体测量,满足立体定向手术的需要。 |
| 英文摘要: |
| Objective Stereomeasure the skeleton structure of skull base quickly and conveniently. Methods Reconstructed three2dimensional images of the skeleton structure of skull base ,and calculated three-dimensional coordinates of every
pixel of the image. According to the formula (L = (X1-X2) 2 + ( Y1-Y2) 2 + (Z1-Z2) 2 ,the distance of every two pixels
on the three2dimensional image was calculated out . Established the applicative program by C+ + language. Applied the laser
range finder with three coordinates as control. Results Applied the stereomeasurement by the laser ranger finder with three
coordinates as the etalon , the precision of the three2dimensional virtual stereomeasurement was 011mm. The consistency
check showed that P = 01999 ,which means high concord. Conclusion The three2dimensional stereomeasurement based on
the techniques of computer assisted graphic analysis is capable of surveying the skeleton structure of skull base precisely ,satisfying needs of stereotactic operations. |
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