경희대학교 산학협력단;UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人:
PARK, HUN KUK,박헌국,CHOI, SAM JIN,최삼진
申请号：
KR1020120082679
公开号：
KR1020140015031A
申请日:
2012.07.27
申请国别(地区):
KR
年份:
2014
代理人:
摘要：
The present invention is to provide a method for extracting the structure of teeth automatically from a computed tomography image. The matching rate of the real teeth of a testee to teeth information obtained by automatically extracting the set of teeth of the testee through an image processing in the CT image of the testee used for orthodontic treatment is improved. Thereby, accurate orthodontic treatment is supported and also a variation of the teeth and teeth movement in the orthodontic treatment are quantitatively analyzed. [Reference numerals] (AA) Start； (BB) End； (S10) Step for obtaining a plurality of CT images in a CT imaging apparatus； (S100) Step for repeatedly infilling masking-processed teeth images； (S110) Step for morphologically filtering the infilled teeth images； (S120) Step for extracting edge information of the morphologically filtered teeth images； (S130) Step for extracting the structure of teeth by a quadratic polynomial fitting algorithm based on the edge information of the teeth images； (S140) Step for outputting the structure of teeth automatically extracted through an image output device； (S20) Step for selecting a single CT image on an image process device； (S30) Step for infilling the selected CT images； (S40) Step for processing an anisotropic diffusion filter of the infilled CT image； (S50) Step for binarizing the CT images by a threshold value； (S60) Step for eroding the binarized CT images； (S70) Step for processing the automation selection of the eroded CT images； (S80) Step for expanding the teeth images in which an automatic selection is processed； (S90) Step for masking-processing the teeth images in which the expansion is processed본 발명은 교정치료에 사용되는 피검자의 CT영상에서 이미지 프로세싱을 통하여 피검자의 치열구조를 자동적으로 추출하여 획득한 치아정보와 피검자의 실제 치아와의 매칭률을 높임으로써 정밀한 교정치료를 돕는 동시에 교정치료에 있어 치아 이동과 치아의 변화량을 정량적으로 해석 가능한 CT영상으로부터 치열구조의 자동추출방법을 제공한다.
