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Magnetic nanoparticles residing in living tissues under external magnetic field may induce tissue displacement that can be measured by ultrasound imaging. We propose a method to take magnetic force images which is proportional to the magnetic nanoparticle density under the assumption of mechanical coupling of the nanoparticles with background tissues. After measuring the axial displacement component...
Fuzzy C-means (FCM) has been frequently used to image segmentation in order to separate objects. The most used segmentation attribute is grey level of pixels. Nevertheless, this method can not identify complex image objects because grey level can not take into account all visual information. This paper describes a modified FCM method for tissue classification which integrates separation and fusion...
This paper describes an automated pixel classification method using surface expansion. The originality of this work resides in the definition and use of small pictures (called "imagelet") of increasing size centered on the pixel of interest. This allows for the extraction of a set of local and global parameters associated to the pixel investigated. This set of parameters then permits body...
This paper describes an automated pixel classification method using surface expansion. The originality of this work resides in the definition and use of small pictures (called "imagelet") of increasing size centered on the pixel of interest. This allows for the extraction of a set of local and global parameters associated to the pixel investigated. This set of parameters then permits body...
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