1. INTRODUCTION
The spine bone consists of the VB and spinal processes. In this paper, we are primarily interested in volumetric computed tomography (CT) images of the vertebral bone. Most publications focus on the lumbar spine. In our experiment, we used both lumbar and thoracic spine images. The primary goal of the proposed work is in the field of spine densitometry where bone mineral density (BMD) measurements and fracture analysis (FA) are restricted to the vertebral bodies, especially trabecular bones (see Fig. 1 for regions of spine bone).