Journal of Digital Imaging

, Volume 22, Issue 3, pp 309-318

First online:

Spine Localization in X-ray Images Using Interest Point Detection

  • Mohammed BenjellounAffiliated withComputer Science Department, Faculty of Engineering
  • , Saïd MahmoudiAffiliated withComputer Science Department, Faculty of Engineering Email author 

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This study was conducted to evaluate a new method used to calculate vertebra orientation in medical x-ray images. The goal of this work is to develop an x-ray image segmentation approach used to identify the location and the orientation of the cervical vertebrae in medical images. We propose a method for localization of vertebrae by extracting the anterior—left—faces of vertebra contours. This approach is based on automatic corner points of interest detection. For this task, we use the Harris corner detector. The final goal is to determine vertebral motion induced by their movement between two or several positions. The proposed system proceeds in several phases as follows: (a) image acquisition, (b) corner detection, (c) extracting of the corners belonging to vertebra left sides, (d) global estimation of the spine curvature, and (e) anterior face vertebra detection.

Key words

Vertebral mobility analysis corner detection face contour detection Harris detector