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Comput Biol Med. 2009 Jul;39(7):615-9. doi: 10.1016/j.compbiomed.2009.04.004. Epub 2009 May 23.

Fast algorithm for detection of reference spheres in digital panoramic radiography.

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1
Department of Oral Surgery, Johannes Gutenberg University, Mainz, Germany. bruellmd@mail.uni-mainz.de

Abstract

In this paper, an algorithm for detection of reference spheres from digital panoramic radiographic images is presented. The proposed algorithm was tested on a database of 107 digital panoramic radiographic images which were used for dental diagnostics. Results show that the proposed method exhibits for detection of reference spheres, a sensitivity of 97.33% and specificity of 93.85%. Performance time differed between 0.55 and 2.36s depending on image size. The aim of this work was to provide a fast ellipse detection algorithm to reduce measuring time on preoperative implant planning by lowering the computational cost.

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