电子科技大学学报Issue(6)：951-954,4.DOI:10.3969/j.issn.1001-0548.2013.06.027
基于侧向引导的2D加权相位分离位移估计
2D Weighted Phase Separation Displacement Estimation Based on Lateral Guidance
摘要
Abstract
On the basis of parallelizable real-time motion tracking algorithm, we propose the modified weighted phase separation (WPS) displacement estimation algorithm based on lateral guidance and 2D estimation window, and validate whether this algorithm can improve elastography performance. The displacement of the middle A-lines is estimated as the seed displacement, the other displacements are estimated from the middle to two sides, their initial displacements are selected from the lateral adjacent displacement estimate, and the final displacements are generated by using 2D weighted phase separation algorithm. The simulation shows that the modified WPS algorithm can achieve elastogram with higher SNRe than the original WPS at various strains or window-lengths. And the phantom experiment also shows that the modified WPS algorithm can generate the higher performance elastogram.关键词
位移估计/弹性成像/侧向引导/超声/加权相位分离Key words
displacement estimation/elastography/lateral guidance/ultrasound/weighted phase separation分类
信息技术与安全科学引用本文复制引用
崔少国,冯欣..基于侧向引导的2D加权相位分离位移估计[J].电子科技大学学报,2013,(6):951-954,4.基金项目
国家自然科学基金(61202348)；重庆市自然科学基金(cstc2012jjA40030)；重庆市教委科学技术研究项目(KJ130826) （61202348）
