Results 21 to 30 of about 56,378 (257)

Orthogonal Subspace Projection Target Detector for Hyperspectral Anomaly Detection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Orthogonal subspace projection (OSP) is a versatile hyperspectral imaging technique which has shown great potential in dimensionality reduction, target detection, spectral unmixing, etc. However, due to its inherent requirement of prior target knowledge,
Chein-I Chang, Hongju Cao, Meiping Song
doaj   +1 more source

Orthogonal projections of hypercubes

Physical Review E
Projections of hypercubes have been applied to visualize high-dimensional binary state spaces in various scientific fields. Conventional methods for projecting hypercubes, however, face practical difficulties. Manual methods require nontrivial adjustments of the projection basis, while optimization-based algorithms limit the interpretability and ...
Yoshiaki Horiike, Shin Fujishiro
openaire   +3 more sources

Multiple viewpoints projection hologram from multiple angular orthogonal projection images based on GPU

Shenzhen Daxue xuebao. Ligong ban
To solve the problem of slow generation of multiple viewpoint projection hologram, a novel method for synthesizing Fresnel holograms based on graphics processing unit (GPU) is proposed with multiple angular orthogonal projection images. Firstly, multiple
CAO Xuemei, ZHANG Chunxiao, GUAN Mingxiang, XIA Linzhong, GUO Lili, MIAO Yuhu, CAO Shiping   +6 more
doaj   +1 more source

Orthogonal Projections Based on Hyperbolic and Spherical n-Simplex

Advances in Mathematical Physics, 2015
Orthogonal projection along a geodesic to the chosen k-plane is introduced using edge and Gram matrix of an n-simplex in hyperbolic or spherical n-space. The distance from a point to k-plane is obtained by the orthogonal projection.
Murat Savas, Baki Karliga, Atakan T. Yakut   +2 more
doaj   +1 more source

Orthogonal projection regularization operators [PDF]

Numerical Algorithms, 2007
The authors propose Tikhonov regularization operators of the form \(L = I - W W^T\), with \(W^T W = I\) and easy to be computed. They successfully apply these constructions to iterative and singular value decomposition-based methods. Numerical examples are presented for first kind integral equations and image restoration problems.
MORIGI, SERENA, L. Reichel, SGALLARI, FIORELLA   +2 more
openaire   +2 more sources

On the Orthogonal Projection of a Belief Function [PDF]

, 2007
In this paper we study a new probability associated with any given belief function b, i.e. the orthogonal projection π[b] of b onto the probability simplex P. We provide an interpretation of π[b] in terms of a redistribution process in which the mass of each focal element is equally distributed among its subsets, establishing an interesting analogy ...
openaire   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

FEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg, Martine Hjeltnes, Josephine Krieger, Joshua E. Elias, Maria Stensland, Kristian Holm, Xiaojun Jiang, Chuki Khangsar, Tuula A. Nyman, Arthur Kaser, Johannes R. Hov, Tom H. Karlsen, Nicole C. Kaneider, Frode L. Jahnsen, Georg Schneditz   +14 more
wiley   +1 more source

Orthogonal Projection and Total Least Squares [PDF]

Numerical Linear Algebra with Applications, 1993
AbstractOverdetermined linear systems often arise in applications such as signal processing and modern communication. When the overdetermined system of linear equations AX ≈︁ B has no solution, compatibility may be restored by an orthogonal projection method. The idea is to determine an orthogonal projection matrix P by some method M such that [Ã B̃] =
Ricardo D. Fierro, James R. Bunch
openaire   +2 more sources

Discerning protein pools by selective staining with self‐labeling tags

FEBS Letters, EarlyView.
Cell surface proteins have an intra‐ and extracellular pool. Combining genetic fusion to self‐labeling tags that can be addressed with small molecule fluorophores allows separating these pools. We highlight recent developments and techniques for state‐of‐the‐art interrogation of cell surface proteins in the complex tissue setting.
Kati Fischermanns, Johannes Broichhagen
wiley   +1 more source

Orthogonal Spatial Domain Subspace Projection Based Time-Varying Channel Estimation

IEEE Access, 2020
Time-varying channel estimation is a well-known challenge for the wireless communications in the high mobility environments. In this paper, we propose a basis expansion model (BEM) based channel estimation algorithm utilizing orthogonal spatial domain ...
Rong Zeng, Qiang Huang, Hao Wang
doaj   +1 more source