Auto-detection of Contour in Echocardiographic Images Based on Active Contour Model
10.3321/j.issn:1001-5515.2001.02.019
- VernacularTitle:基于活动轮廓模型的超声心脏图像轮廓的自动检测
- Author:
Aijun HE
1
;
Tianfu WANG
;
Changqiong ZHENG
;
Deyu LI
;
Shukui ZHAO
;
Yi ZHENG
Author Information
1. Sichuan University
- From:
Journal of Biomedical Engineering
2001;18(2):242-246,253
- CountryChina
- Language:Chinese
-
Abstract:
Contour detection is one of the most difficult problems in the multi-dimensional reconstruction of echocardiographic images. A method based on active contour model is presented in the present paper to solve this problem. First, according to the characteristic of the ultrasonic medical images, an adaptive weighted median filter is used to suppress speckle noise and an adaptive threshold value is selected to get binary image. Then, mathematical morphological treatment is utilized to get the initial contour. At last, active contour model is employed to revise the initial contour and get the accurate final contour. Experiments with real and interpolated ultrasonic images are presented. The results show the effectiveness of this method. This method has practical use in the multi-dimensional reconstruction of ultrasonic medical images.
