کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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505365 | 864498 | 2010 | 12 صفحه PDF | دانلود رایگان |
Texture feature is one of most important feature analysis methods in the computer-aided diagnosis (CAD) systems for disease diagnosis. In this paper, we propose a Uniformity Estimation Method (UEM) for local brightness and structure to detect the pathological change in the chest CT images. Based on the characteristics of the chest CT images, we extract texture features by proposing an extension of rotation invariant LBP (ELBPriu4) and the gradient orientation difference so as to represent a uniform pattern of the brightness and structure in the image. The utilization of the ELBPriu4 and the gradient orientation difference allows us to extract rotation invariant texture features in multiple directions. Beyond this, we propose to employ the integral image technique to speed up the texture feature computation of the spatial gray level dependent method (SGLDM).
Journal: Computers in Biology and Medicine - Volume 40, Issues 11–12, November–December 2010, Pages 931–942