지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한의용생체공학회 Biomedical Engineering Letters (BMEL) Biomedical Engineering Letters (BMEL) Vol.4 No.2
- 발행연도
- 2014.1
- 수록면
- 176 - 185 (10page)
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초록· 키워드
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Purpose The presence of speckle noise and artifacts makedelineation of transthoracic echocardiographic (TTE) imagesquite difficult and challenging; the edges are to be preservedwhile removing noise. To address issues, a novel specklereduction technique is being proposed and analyzed.
Methods Three fuzzy filters based on median and movingaverage concepts are experimented in homomorphic domainand the best one is further fine tuned for applications on TTEimages. The proposed hybrid homomorphic Fuzzy (HHF)filter is the sequential integration of homomorphic fuzzyfilter with anisotropic diffusion. The denoising characteristicsof HHF filter are compared with ten existing techniquestested in homomorphic and other seven in non-homomorphicdomain using seven different performance parameters alongwith visual quality assessment. Experimentations are performedon TTE images acquired in two parasternal and three apicalviews, since image in one view may not very precisely speakof underlying valvular abnormality.
Results The edge preservation capability is increased bymany fold (around 8 times) upon integration of homomorphicfuzzy filter with the anisotropic diffusion filtering technique.
Beta metric, figure of merit and structure similarity indicesare all greater than 0.97 for proposed HHF filter.
Conclusions The performance of proposed HHF filter issuperior in comparison to seventeen state-of-art denoisingtechniques in terms of all seven performance parameters.
Noise is reduced with the edges and structure of TTE imageswell preserved.
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참고문헌 (27)
참고문헌 신청
Kaddoura S. / 2012 / Echo made easy. 2nd ed / Elsevier Health Sciences
Tenbrinck D / 2012 / Impact of physical noise modeling on image segmentation in echocardiography / Vis Comput Biol Med :33~40
Finn S / 2011 / Echocardiographic speckle reduction comparison / IEEE T Ultrason Ferroelectr Freq Control 58(1):82~101
Loupas T / 1989 / An adaptive weighted median filter for speckle suppression in medical ultrasonic images / IEEE T Circuits Syst 36(1):129~135
Ozcan A / 2007 / Speckle reduction in optical coherence tomography images using digital filtering / J Opt Soc Am A Opt Image Sci Vis 24(7):1901~1910
Tenbrinck D / 2012 / Impact of physical noise modeling on image segmentation in echocardiography / Vis Comput Biol Med :33~40
Finn S / 2011 / Echocardiographic speckle reduction comparison / IEEE T Ultrason Ferroelectr Freq Control 58(1):82~101
Loupas T / 1989 / An adaptive weighted median filter for speckle suppression in medical ultrasonic images / IEEE T Circuits Syst 36(1):129~135
Ozcan A / 2007 / Speckle reduction in optical coherence tomography images using digital filtering / J Opt Soc Am A Opt Image Sci Vis 24(7):1901~1910
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