Results 11 to 20 of about 525,025 (272)
Optimal tight frames and quantum measurement [PDF]
IEEE Transactions on Information Theory, 2002 Submitted to IEEE Transactions on Information Theory.
Eldar, Yonina C., Forney, G. David jun.
openaire +5 more sources
Tight-frame based iterative image reconstruction for spectral breast CT. [PDF]
Med Phys, 2013 Zhao B, Gao H, Ding H, Molloi S.
europepmc +2 more sources
A Brief Survey of the Graph Wavelet Frame
Complexity, 2022 In recent years, the research of wavelet frames on the graph has become a hot topic in harmonic analysis. In this paper, we mainly introduce the relevant knowledge of the wavelet frames on the graph, including relevant concepts, construction methods, and
Jie Zhou, Zeze Zhang
doaj +1 more source
Equichordal Tight Fusion Frames
Indian Journal of Pure and Applied Mathematics, 2020 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mohammadpour, Mozhgan +2 more
openaire +1 more source
Regularity properties of Haar Frames
Comptes Rendus. Mathématique, 2021 We prove that pointwise and global Hölder regularity can be characterized using the coefficients on the Haar tight frame obtained by using a finite union of shifted Haar bases, despite the fact that the elements composing the frame are discontinuous.
Jaffard, Stéphane, Krim, Hamid
doaj +1 more source
Advances in Computational Mathematics, 2013 We introduce a class of finite tight frames called prime tight frames and prove some of their elementary properties. In particular, we show that any finite tight frame can be written as a union of prime tight frames. We then characterize all prime harmonic tight frames and use this characterization to suggest effective analysis and synthesis ...
Lemvig, Jakob +2 more
openaire +3 more sources
Stable Sparse Model with Non-Tight Frame
Applied Sciences, 2020 Overcomplete representation is attracting interest in image restoration due to its potential to generate sparse representations of signals. However, the problem of seeking sparse representation must be unstable in the presence of noise.
Min Zhang, Yunhui Shi, Na Qi, Baocai Yin
doaj +1 more source
Equiangular Tight Frames From Hyperovals [PDF]
IEEE Transactions on Information Theory, 2016 An equiangular tight frame (ETF) is a set of equal norm vectors in a Euclidean space whose coherence is as small as possible, equaling the Welch bound. Also known as Welch-bound-equality sequences, such frames arise in various applications, such as waveform design, quantum information theory, compressed sensing and algebraic coding theory. ETFs seem to
Matthew Fickus +2 more
openaire +2 more sources
Tight Frame with Hahn and Krawtchouk Polynomials of Several Variables [PDF]
, 2014 Finite tight frames for polynomial subspaces are constructed using monic Hahn polynomials and Krawtchouk polynomials of several variables. Based on these polynomial frames, two methods for constructing tight frames for the Euclidean spaces are designed ...
Xu, Yuan
core +1 more source
Applied and Computational Harmonic Analysis, 2013 Fusion frames enable signal decompositions into weighted linear subspace components. For positive integers p, we introduce p-fusion frames, a sharpening of the notion of fusion frames. Tight p-fusion frames are closely related to the classical notions of designs and cubature formulas in Grassmann spaces and are analyzed with methods from harmonic ...
Bachoc, Christine, Ehler, Martin
openaire +4 more sources