Results 21 to 30 of about 22,663 (297)
Coordinate Descent Iterations in Pseudo Affine Projection Algorithm [PDF]
This paper introduces a new affine projection algorithm based on the dichotomous coordinate descent algorithm. A generalization for simplified Volterra filters is also made and its stability is improved by using a voice activity detector. The performance of the proposed algorithms for acoustic echo cancellation is assessed.
Felix Albu, Constantine Kotropoulos
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Some new inertial forward-backward projection iterative algorithms are designed in a real Hilbert space. Under mild assumptions, some strong convergence theorems for common zero points of the sum of two kinds of infinitely many accretive mappings are ...
Li Wei, Yingzi Shang, Ravi P. Agarwal
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AN ECC-BASED ITERATIVE ALGORITHM FOR PHOTOMETRIC INVARIANT PROJECTIVE REGISTRATION [PDF]
The ability of an algorithm to accurately estimate the parameters of the geometric transformation which aligns two image profiles even in the presence of photometric distortions can be considered as a basic requirement in many computer vision applications. Projective transformations constitute a general class which includes as special cases the affine,
Georgios D. Evangelidis +1 more
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Step Surface Profile Measurement Based on Fringe Projection Phase-Shifting Using Selective Sampling
Fringe projection is a non-contact optical method that is widely used in the optical precision measurement of complex stepped surfaces. However, the accuracy of the fringe phase extraction employed has a direct impact on the measurement precision of the ...
Songsong Zhang, Haisong Huang
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The Acceptability of Iterative Reconstruction Algorithms in Head CT: An Assessment of Sinogram Affirmed Iterative Reconstruction (SAFIRE) vs. Filtered Back Projection (FBP) Using Phantoms [PDF]
Computed tomography (CT) is the primary imaging investigation for many neurologic conditions with a proportion of patients incurring cumulative doses.
Huckle, John +7 more
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Projected iterative algorithms with application to multicomponent transport
Projected iterative algorithms for solving constrained symmetric singular linear systems are examined. The symmetry of generalized inverses, the projected standard iterative methods as well as projected conjugate gradient algorithms are investigated.
Ern, Alexandre, Giovangigli, Vincent
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Projection Matrix Based Iterative Reconstruction Algorithm for Robotic CT
Robotic computed tomography (CT) consists of two separate manipulators which carry the source and detector, respectively. Various errors occur in motion due to lack of rigid connection, which may change scanning trajectory of this system. Some methods aimed at recovering geometry relation have occurred.
Xuan Zhou, Qiong Xu, Cunfeng Wei
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Projection tomography techniques, such as optical projection tomography and stimulated Raman projection tomography, can efficiently provide quantitative distributions of compositions in three-dimensional volumes that are isotropic and exhibit high ...
Hui Xie +6 more
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In this article, we study the extended split equality problem and extended split equality fixed point problem, which are extensions of the convex feasibility problem.
Meixia Li, Xueling Zhou, Wenchao Wang
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Iterative algorithms are widely applied to solve convex optimization problems under a suitable set of constraints. In this paper, we develop an iterative algorithm whose architecture comprises a modified version of the forward-backward splitting ...
Yasir Arfat +3 more
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