Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Restoration of Chest X-ray Image Using Dual Projection Filter

이중 프로젝션 필터를 이용한 흉부 X-선 영상의 복원

  • 이태수 (충북대학교 의과대학 의공학교실) ;
  • 민병구 (서울대학교 의과대학 의공학교실)
  • Published : 1992.03.01
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Abstract

A new restoration method of chest X -ray image (dual project filter) was proposed to improve SNR(signal to noise ratio) characteristics. In this method, a priori Information of system and anatomical structure and statistics of projected object are used in the design of filter. Dual projection filter varies its parameters, adapting to the local regions of chest(lung region, mediasternum, subdiaphragm) and the structure of chest (bone, tissue, blood vessel, bronchia). The performance of Dual Projection Filter was 0.1-0.2dB better than Dual Sensor Wiener Filter, which was used for initial estimate of Dual Porjection Filter.

Keywords

References

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