CAJ | 학술논문

核磁共振成像(MRI)以其无辐射、多方位成像、空间分辨率高等优点在影像医学领域广泛应用,核磁共振图像的分割也发挥着越来越重要的作用.对应用较广的核磁图像的分割算法的原理和应用进行了系统的综述,将核磁图像分割算法分为5个主要研究方面:基于阈值,基于模式识别,基于活动轮廓模型,基于马尔科夫随机场(MRF),基于图切割;给出了不同算法分割特点和相关应用范围,并将部分算法应用在腹部核磁图像上进行分割实验,展示了不同算法分割核磁图像后的效果和特点.最后,展望了核磁图像分割的未来的发展趋势.
핵자공진성상(MRI)이기무복사、다방위성상、공간분변솔고등우점재영상의학영역엄범응용,핵자공진도상적분할야발휘착월래월중요적작용.대응용교엄적핵자도상적분할산법적원리화응용진행료계통적종술,장핵자도상분할산법분위5개주요연구방면:기우역치,기우모식식별,기우활동륜곽모형,기우마이과부수궤장(MRF),기우도절할;급출료불동산법분할특점화상관응용범위,병장부분산법응용재복부핵자도상상진행분할실험,전시료불동산법분할핵자도상후적효과화특점.최후,전망료핵자도상분할적미래적발전추세.
Magnetic resonance imaging (MRI) plays a more and more important role in medical image area for its advantages of nonradiative,multiple imaging and high spatial resolution.This review gives a systematic discussion over a couple of MRI segmentation algorithms that are used widely to help people have an entire knowledge of MRI segmentation methods.On the base of classification and summary of MRI segmentation,the MRI segmentation algorithms have been classified into 5 different categories after preliminary investigation and survey.Based on threshold,pattern recognition,active contours,Markov random field (MRF) and graph cut,separately.After further investigation and survey we summarize the characters and field of applications of the 5 different algorithms,then take a few segment experiments among these algorithms on abdomen MRI and present their distinct characteristics.At last,we take a prospect at the future of the MRI segmentation.