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dc.contributor.authorAkan, Aydin
dc.contributor.authorErtas, Metin
dc.contributor.authorKamasak, Mustafa
dc.contributor.authorYıldırım, İsa
dc.date.accessioned2021-03-04T12:18:29Z
dc.date.available2021-03-04T12:18:29Z
dc.identifier.citationErtas M., Akan A., Yıldırım İ., Kamasak M., "Sparse Tomographic Image Reconstruction Method Using Total Variation and Non-Local Means", IEEE International Conference on Imaging Systems and Techniques (IST), Macau, Çin, 16 - 18 Eylül 2015, ss.301-304
dc.identifier.otherav_76a94d1a-0d62-43dc-aa89-2ede11e96cd3
dc.identifier.othervv_1032021
dc.identifier.urihttp://hdl.handle.net/20.500.12627/81472
dc.identifier.urihttps://doi.org/10.1109/ist.2015.7294554
dc.description.abstractPatient radiation dose is a major issue in computerized tomography (CT) imaging. Therefore, many improvements to the classical reconstruction algorithms are suggested to achieve reasonable image quality with less patient dose. The aim of this work is to improve the well-known algebraic reconstruction algorithm (ART) in order to obtain good image quality with less or limited projection angles. We achieve this purpose by sequential application of ART update, total variation minimization (TV), and non-local means (NLM). Both TV and NLM are widely used in imaging algorithms with high performance. To show the improvement in ART by TV and NLM we used a Shepp-Logan phantom simulation and real data from digital tomosynthesis imaging system. Our results indicate that the proposed method provided superior results over two widely used methods, ART and ART+TV, in many senses including Structure SIMilarity (SSIM), signal to noise ratio (SNR) and root mean squared error (RMSE).
dc.language.isoeng
dc.subjectSağlık Bilimleri
dc.subjectMÜHENDİSLİK, ELEKTRİK VE ELEKTRONİK
dc.subjectBilgi Sistemleri, Haberleşme ve Kontrol Mühendisliği
dc.subjectSinyal İşleme
dc.subjectMühendislik ve Teknoloji
dc.subjectGÖRÜNTÜLEME BİLİMİ VE FOTOĞRAF TEKNOLOJİSİ
dc.subjectKlinik Tıp
dc.subjectKlinik Tıp (MED)
dc.subjectTıp
dc.subjectMühendislik
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.titleSparse Tomographic Image Reconstruction Method Using Total Variation and Non-Local Means
dc.typeBildiri
dc.contributor.departmentİstanbul Teknik Üniversitesi , ,
dc.contributor.firstauthorID145766


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