Results 11 to 20 of about 401,900 (340)
Analysis of crystallographic phase retrieval using iterative projection algorithms
Acta Crystallographica Section D Structural BiologyFor protein crystals in which more than two thirds of the volume is occupied by solvent, the featureless nature of the solvent region often generates a constraint that is powerful enough to allow direct phasing of X-ray diffraction data. Practical implementation relies on the use of iterative projection algorithms with good global convergence ...
Michael J. Barnett +2 more
openalex +4 more sources
An analytical iterative statistical algorithm for image reconstruction from projections [PDF]
International Journal of Applied Mathematics and Computer Science, 2014 Abstract The main purpose of the paper is to present a statistical model-based iterative approach to the problem of image reconstruction from projections. This originally formulated reconstruction algorithm is based on a maximum likelihood method with an objective adjusted to the probability distribution of measured signals obtained from an x-ray ...
Robert Cierniak
openalex +2 more sources
Iterative algorithm for optimal fiducials under weak perspective projection [PDF]
International Journal of Imaging Systems and Technology, 2009 AbstractIn previous work, we designed space fiducials with the aim of making camera pose determination as noise‐insensitive as possible. These fiducials turned out to be sets of points that formed concentric regular polyhedra. Here, we apply an idea of Dementhon and Davis and test and analyze an iterative linear algorithm in conjunction with our ...
Alfred M. Bruckstein⋆ +2 more
openalex +2 more sources
Evaluation model and its iterative algorithm by alternating projection
Mathematical and Computer Modelling, 1993 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hengqing Tong
semanticscholar +3 more sources
Iterative Decoding As Dykstra''S Algorithm With Alternate I-Projection And Reverse I-Projection
, 2008 Publication in the conference proceedings of EUSIPCO, Lausanne, Switzerland ...
Florence Alberge
openalex +4 more sources
Non-Iterative Solution for Coordinated Optimal Dispatch via Equivalent Projection—Part II: Method and Applications [PDF]
IEEE Transactions on Power Systems, 2023 This two-part paper develops a non-iterative coordinated optimal dispatch framework, i.e., free of iterative information exchange, via the innovation of the equivalent projection (EP) theory.
Zhenfei Tan, Zheng Yan, H. Zhong, Q. Xia
semanticscholar +1 more source
Sensors, 2023 In this paper, we consider a slot-controlled coded compressed sensing protocol for unsourced massive random access (URA) that concatenates a shared patterned Reed–Muller (PRM) inner codebook to an outer error-correction code.
Wenjiao Xie, Runhe Tian, Huisheng Zhang
doaj +1 more source
Block-Iterative Algorithms with Underrelaxed Bregman Projections [PDF]
SIAM Journal on Optimization, 2002 The authors consider the convex feasibility problem of finding a point of the set \(C=\bigcap_{i=1}^{m} C_{i}\) where each \(C_{i}\) is a convex closed subset of \(R^{n}\). The usual block-iterative algorithms for this problem are based on the sequential orthogonal projections with possible relaxations.
Censor, Yair, Herman, Gabor T.
openaire +1 more source
Accurate real space iterative reconstruction (RESIRE) algorithm for tomography
Scientific Reports, 2023 Tomography has made a revolutionary impact on the physical, biological and medical sciences. The mathematical foundation of tomography is to reconstruct a three-dimensional (3D) object from a set of two-dimensional (2D) projections.
Minh Pham +4 more
semanticscholar +1 more source
Statistical Interior Tomography via L1 Norm Dictionary Learning without Assuming an Object Support
Tomography, 2022 Interior tomography of X-ray computed tomography (CT) has many advantages, such as a lower radiation dose and lower detector hardware cost compared to traditional CT.
Junfeng Wu, Xiaofeng Wang, Xuanqin Mou
doaj +1 more source