Results 21 to 30 of about 9,697 (298)

Sound source localization using multiple ad hoc distributed microphone arrays [PDF]

open access: yesJASA Express Letters, 2022
Sound source localization is crucial for communication and sound scene analysis. This study uses direction-of-arrival estimates of multiple ad hoc distributed microphone arrays to localize sound sources in a room.
Manuel Hahmann   +3 more
doaj   +1 more source

Geometric-algebra affine projection adaptive filter

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
Geometric algebra (GA) is an efficient tool to deal with hypercomplex processes due to its special data structure. In this article, we introduce the affine projection algorithm (APA) in the GA domain to provide fast convergence against hypercomplex ...
Yuetao Ren, Yongfeng Zhi, Jun Zhang
doaj   +1 more source

HIGH-RESOLUTION SATELLITE IMAGE TRIFOCAL TENSOR SOLUTION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
This study presents an efficient algorithm for solving the affine trifocal tensor problem in  high-resolution satellite imagery. Because the imaging mode of high-resolution satellites is usually a line-center projection and the field of view is ...
S. Yang, H. Pan, T. Huang
doaj   +1 more source

Affine projection sign algorithm based control for mitigation of distribution side power quality problems

open access: yesEnergy Conversion and Economics, 2021
This paper proposes the implementation of Affine Projection Sign Algorithm (APSA) based control for DSTATCOM to mitigate distribution side power quality issues like harmonic elimination, reactive power compensation, load balancing, power factor ...
Archana Sharma   +2 more
doaj   +1 more source

Set-Membership Proportionate Affine Projection Algorithms

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2007
Proportionate adaptive filters can improve the convergence speed for the identification of sparse systems as compared to their conventional counterparts.
Apolinário José A   +2 more
doaj   +2 more sources

Affine and projective planes

open access: yesDiscrete Mathematics, 1990
This is an interesting paper which studies the code of a finite projective plane. The technique is to study the hull, which is defined for any 2-design \(D=(P,B)\), where \(P\) is the set of points and \(B\) the set of blocks. Let \(I\) be an incidence matrix of \(D\) where the rows are indexed by the blocks and the columns by the points. The \(\mathrm{
E. F. Assmus Jr., Jennifer D. Key
openaire   +1 more source

Exponentially larger affine and projective caps

open access: yesMathematika, 2022
AbstractIn spite of a recent breakthrough on upper bounds of the size of cap sets (by Croot, Lev and Pach and by Ellenberg and Gijswijt), the classical cap set constructions had not been affected. In this work, we introduce a very different method of construction for caps in all affine spaces with odd prime modulus p.
Elsholtz, Christian, Lipnik, Gabriel F.
openaire   +3 more sources

Affine projections

open access: yesComputers & Mathematics with Applications, 2004
Using the Moore-Penrose pseudoinverse of a matrix (a reference is \textit{C. D. Meyer}'s book [Matrix analysis and applied linear algebra (2000; Zbl 0962.15001)]), the authors construct projections of a vector on affine subspaces of a vector space. Some formulas for projecting onto intersections and sums of subspaces are also given.
Piziak, R., Odell, P.L.
openaire   +1 more source

Affine and Projective Structure from Motion [PDF]

open access: yesProcedings of the British Machine Vision Conference 1992, 1992
We demonstrate the recovery of 3D structure from multiple images, without attempting to determine the motion between views. The structure is recovered up to a transformation by a 3D linear group — the affine and projective group. The recovery does not require knowledge of camera intrinsic parameters or camera motion.
Demey, S, Zisserman, A, Beardsley, P
openaire   +2 more sources

Contour matching using the affine‐invariant support point set

open access: yesIET Computer Vision, 2014
Moment has been widely used for contour matching. To use the moment to achieve contour matching under affine transformations, the affine‐invariant support point set (SPS) should be constructed first.
Wei Wang   +4 more
doaj   +1 more source

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