Penalized-likelihood PET Image Reconstruction Using 3D Structural Convolutional Sparse Coding

اسناد مشابه

• Iterative PET Image Reconstruction Using Convolutional Neural Network Representation

  سند علمی۲۰۱۷CoRRKuang Gong, Jiahui Guan, Kyung Sang Kim, Xuezhu Zhang

  PET image reconstruction is challenging due to the ill-poseness of the inverse problem and limited number of detected photons. Recently deep neural networks have been widely and successfully used in computer vision tasks and attracted growing interests in medical imaging. In this

• A Paraboloidal Surrogates Algorithm for Convergent Penalized-Likelihood Emission Image Reconstruction

  سند علمی۱۹۹۸Jeffrey A. Fessler, Hakan Erdoğan

  We present a new algorithm for penalized-likelihood emission image reconstruction. The algorithm monotonically increases the objective function, converges globally to the unique maximizer, and easily accommodates the nonnegativity constraint and nonquadratic but convex penalty fu

• Grouped-Coordinate Ascent Algorithms for Penalized-Likelihood Transmission Image Reconstruction - Medical Imaging, IEEE Transactions on

  سند علمی۲۰۰۹Jeffrey A. Fessler, Edward P. Ficaro, Neal H. Clinthorne, Kenneth Lange

  This paper presents a new class of algorithms for penalized-likelihood reconstruction of attenuation maps from low-count transmission scans. We derive the algorithms by applying to the transmission log-likelihood a version of the convexity technique developed by De Pierro for emi

• Penalized likelihood emission image reconstruction with uncertain boundary information

  سند علمی۱۹۹۷ICASSPStephen R. Titus, Alfred O. Hero, Jeffrey A. Fessler

  In this paper, a method is introduced for incorporating perfectly registered MRI boundary information into a penalized likelihood emission reconstruction scheme. The boundary curve is modeled as a periodic spline whose coe cients are estimated from the MRI image. The resulting bo

• dPIRPLE: a joint estimation framework for deformable registration and penalized-likelihood CT image reconstruction using prior images

  مقاله‌ی دسترسی آزاد۲۰۱۴Physics in Medicine and BiologyHDang, A SWang, Marc SSussman, J HSiewerdsen

• Grouped-coordinate ascent algorithms for penalized-likelihood transmission image reconstruction

  مقاله‌ی دسترسی آزاد۱۹۹۷IEEE Transactions on Medical ImagingJ.A.Fessler, E.P.Ficaro, N.H.Clinthorne, K.Lange