A twice clustering method( MSHC) was proposed based on meanshift and hierarchical. Firstly,in the CIE( LUV) color space,meanshift method is used for the first clustering to realize image smoothing and initial clustering. Then,the mean of each region was used as the initial value for the second clustering. And hierarchy clustering was used for the second clustering,which would be stopped until the clustering effect reached the expected effect. Finally,the mean of the aorta region was used as the seed point i...
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