BRAIN MR IMAGE SEGMENTATION BY MODIFIED ACTIVE CONTOURS AND CONTOURLET TRANSFORM
作者: P Nageswara Reddy<sup>1<sup/> C P V N J Mohan Rao<sup>2<sup/> Ch Satyanarayana<sup>3<sup/>
作者单位: 1Jawaharlal Nehru Technological University College of Engineering, India1Avanthi Institute of Engineering and Technology, India2Jawaharlal Nehru Technological University College of Engineering, India3
刊名: ICTACT JOURNAL OF IMAGE AND VIDEO PROCESSING, 2018, Vol.8 (2)
来源数据库: ICT Academy of Tamil Nadu
关键词: MultiresolutionContourlet TransformMRIActive ContoursSegmentation
原始语种摘要: Multiresolution analysis is often used for image representation and processing because it can represent image at the split resolution and scale space. In this paper, a novel medical image segmentation algorithm is proposed that combines contourlet transform and modified active contour model. This method has a new energy formulation by representing the image with the coefficients of a contourlet transform. This results fast and accurate convergence of the contour towards the object boundary. Medical image segmentation using contourlet transforms has shown significant improvement towards the weak and blurred edges of the Magnetic Resonance Image (MRI). Also, the computational complexity is less compared to using traditional level sets and variational level sets for medical image...
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关键词翻译
关键词翻译
  • segmentation 分段
  • image 
  • contour 轮廓
  • complexity 错综性
  • deformable 可变形的
  • blurred 弄污的
  • representing 表示
  • variational 变化的
  • computational 计算的
  • transform 变换