Region-based enhancement of chest and cervical spine radiographs

Jyh-Shyan Lin; Dorothy E. Steller Artz; Huai Li; Kevin Legendre; Matthew T. Freedman M.D.; Seong Ki Mun

doi:10.1117/12.237983

16 April 1996 Region-based enhancement of chest and cervical spine radiographs

Jyh-Shyan Lin, Dorothy E. Steller Artz, Huai Li, Kevin Legendre, Matthew T. Freedman M.D., Seong Ki Mun

Proceedings Volume 2710, Medical Imaging 1996: Image Processing; (1996) https://doi.org/10.1117/12.237983
Event: Medical Imaging 1996, 1996, Newport Beach, CA, United States

Abstract

We have developed a region-based image processing method to enhance selective radiodense regions on digital radiographs. We employ a wavelet filtering technique to locate the radiodense regions-of-interest and then apply different degrees of enhancement procedure to them. The enhancement procedure is based on an unsharp masking technique controlled by a set of sigmoidal functions. The method was tested on computed chest radiographs to improve the visualization of the mediastinum and radiodense spine areas. The enhanced chest images showed improved visualization in the mediastinum area, and the visibility of vascular structures which were obscured by the diaphragm and mediastinum was improved. To demonstrate the method's potential in other medical image processing tasks, we applied it to cervical spine images. The processed cervical spine images also showed better visualization of the seventh cervical vertebrae and the first thoracic vertebrae in the high radiodense area caused by the superimposition of the patient's shoulder tissue over these regions of interest.

Citation Download Citation

Jyh-Shyan Lin, Dorothy E. Steller Artz, Huai Li, Kevin Legendre, Matthew T. Freedman M.D., and Seong Ki Mun "Region-based enhancement of chest and cervical spine radiographs", Proc. SPIE 2710, Medical Imaging 1996: Image Processing, (16 April 1996); https://doi.org/10.1117/12.237983

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