摘要: 提出一种无体素的自由臂三维超声任意切面重建方法。通过计算重建切面和原始超声图像的位置关系,根据重建切面附近的超声图像像素点直接重建得到任意切面图像,在计算切面图像像素值的过程中采用平方距离加权方法。实验结果证明,与传统方法相比该方法具有更高的重建精度和相近的噪声抑制能力,而针对某一确定平面的重建时间仅为传统方法的1.6%左右。
关键词:
自由臂三维超声,
无体素,
任意切面重建
Abstract: A voxel-less sectional plane reconstruction method for freehand 3D ultrasound is proposed. By computing the geometrical relationships between the B-scans and the sectional plane, the sectional plane is got directly from nearby pixels in the B-scans. The SDW method is used in calculating the gray level of the sectional plane pixels. Experimental results show that this method is more accurate and has a similar noise, reducing ability as conventional reconstruction methods, with a reconstruction time of only about 1.6% of traditional method for a given plane.
Key words:
freehand 3D ultrasound,
voxel-less,
sectional plane reconstruction
中图分类号:
王庆浩;孙丰荣;王丽梅;王文明;姚桂华;张 运. 一种自由臂三维超声任意切面重建方法[J]. 计算机工程, 2010, 36(9): 206-207,.
WANG Qing-hao; SUN Feng-rong; WANG Li-mei; WANG Wen-ming; YAO Gui-hua; ZHANG Yun. Sectional Plane Reconstruction Method for Freehand 3D Ultrasound[J]. Computer Engineering, 2010, 36(9): 206-207,.