Results 31 to 40 of about 9,697 (298)
Projective translations and affine stereo calibration [PDF]
Proceedings. 1998 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (Cat. No.98CB36231), 2002 This paper investigates the structure of projective translations-rigid translations expressed as homographies in projective space. A seven parameter representation is proposed, which explicitly represents the geometric entities constraining and defining the translation. A practical algebraic method for estimating these parameters is developed.
Ruf, Andreas +2 more
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Robust Diffusion Affine Projection Algorithm With Variable Step-Size Over Distributed Networks
IEEE Access, 2019 The estimation performance of the standard diffusion affine projection algorithm may be degraded when the distributed network nodes are disturbed by impulsive noise. To overcome the limitation, a diffusion affine projection M-estimate (DAPM) algorithm is
Pucha Song, Haiquan Zhao, Xiangping Zeng
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Ultraquadrics associated to affine and projective automorphisms [PDF]
Applicable Algebra in Engineering, Communication and Computing, 2014 The concept of ultraquadric has been introduced by the authors as a tool to algorithmically solve the problem of simplifying the coefficients of a given rational parametrization in K(α)(t1, . . . , tn) of an algebraic variety of arbitrary dimension over a field extension K(α).
Tomás Recio +3 more
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Fast exact variable order affine projection algorithm [PDF]
, 2012 Variable order affine projection algorithms have been recently presented to be used when not only the convergence speed of the algorithm has to be adjusted but also its computational cost and its final residual error. These kind of affine projection (AP)
Gonzalez, Alberto +3 more
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Affine Projection Algorithm Based on Least Mean Fourth Algorithm for System Identification
IEEE Access, 2020 In the field of signal processing such as system identification, the affine projection algorithm (APA) is extensively implemented. However, running such algorithms in a non-Gaussian scenario may degrade its performance, since the second-order moment ...
Xiaoding Wang, Jun Han
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MODULAR BUNDLE ADJUSTMENT FOR PHOTOGRAMMETRIC COMPUTATIONS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 In this paper we investigate how the residuals in bundle adjustment can be split into a composition of simple functions. According to the chain rule, the Jacobian (linearisation) of the residual can be formed as a product of the Jacobians of the ...
N. Börlin +4 more
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On projective and affine hyperplanes
Journal of Combinatorial Theory, Series A, 1980 AbstractWe study projective and affine factors in 2-coverings and associate canonically a projective space of order 2 and an affine space of order 3 to each Steiner triple system and an affine space of order 2 to each Steiner quadruple system.
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Robust factorization for the affine camera: Analysis and comparison
, 2002 Based on our previous work on the use of subspace distances for the outlier detection problem in video sequences under affine projection, this paper reports our further analysis of the problem and presents two algorithms for computing the reprojection ...
Heyden, A. +4 more
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An affine projection algorithm with variable step-size and projection order [PDF]
, 2012 It is known that the performance of adaptive algorithms is constrained by their computational cost. Thus, affine projection adaptive algorithms achieve higher convergence speed when the projection order increases, which is at the expense of a higher ...
Gonzalez, Alberto +3 more
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EURASIP Journal on Audio, Speech, and Music Processing, 2007 The paper provides an analysis of the transient and the steady-state behavior of a filtered-x partial-error affine projection algorithm suitable for multichannel active noise control.
Alberto Carini, Giovanni L. Sicuranza
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