摘要
本文提出一种基于方向滤波预处理提取X线胸片中肋骨边缘的方法,它运用光学处理器(CODFP)实现空间频率域的方向滤波,以达到去除干扰的目的,然后在空间域上对所得肺部图象进行边缘检测,文中对提出的方法进行了计算机模拟,并给出了肋骨边缘提取的实例。结果表明与传统方法相比,该方法降低了后处理的复杂度,易于实现且运算速度较快。
This paper presents a method of rib doundary detection in chest adiographs, by using directional filtering preprocessing, Noise is removed through the directional filter in spece frequency domain, which is implemented on an optical processor, (i.e.CODFP), then the rib edges can be identified in space domain with the help of digital processing, The component of the optical processor is simulated by computer, and the application of our method to some chest, rediograph is given out . The results show that this method maks implementation easier, execution faster and makes the postproces-sing complexity reduced.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
1991年第4期187-191,226,共6页
Journal of Optoelectronics·Laser
基金
国家自然科学基金
