Extraction of Liver Focal Lesions in Abdominal CT Image Based on Local OTSU and Zone Market Screening
- VernacularTitle:结合局部最大类间方差和标记筛选的腹部CT肝脏病灶提取
- Author:
Zhaohui LUO
;
Shanxing OU
- Publication Type:Journal Article
- Keywords:
abdominal CT image;
liver focal lesions;
local OTSU;
zone market
- From:
Chinese Medical Equipment Journal
1993;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To prepare for extraction of liver focal lesion in view of its characteristics of images. Methods A region of interest in the liver region comprising the focal lesion to create a local image was selected firstly, then the threshold to pre-segment the local image was got automatically by using local OTSU in clusters algorithm, at last mark sifting methods to get red of inner holes and outer dissociate areas to get the final contour was used. Results The algorithm can efficiently extract the focal liver lesion. Conclusion The way of extraction of liver focal lesions with local OTSU and zone market screening is rapid and effective.
