Results 21 to 30 of about 784,941 (297)

Fast Back-Projection for Non-Line of Sight Reconstruction [PDF]

open access: yes, 2017
Recent works have demonstrated non-line of sight (NLOS) reconstruction by using the time-resolved signal frommultiply scattered light. These works combine ultrafast imaging systems with computation, which back-projects the recorded space-time signal to ...
Arellano, Victor   +2 more
core   +3 more sources

Fan-Gottesman Compactification and Scattered Spaces

open access: yesApplied Mathematics and Nonlinear Sciences, 2020
Abstract Compactification is the process or result of making a topological space into a compact space. An embedding of a topological space X as a dense subset of a compact space is called a compactification of X. There are a lot of compactification methods but we study with Fan- Gottesman compactification.
UĞUR, TAMER, ELMALI, CEREN SULTAN
openaire   +4 more sources

Some results and examples concerning Whyburn spaces

open access: yesApplied General Topology, 2012
We prove some cardinal inequalities valid in the classes of Whyburn and hereditarily weakly Whyburn spaces and we construct examples of non-Whyburn and non-weakly Whyburn spaces to illustrate that some previously known results cannot be generalized.
Ofelia T. Alas   +2 more
doaj   +1 more source

Correction to: Some results and examples concerning Whyburn spaces

open access: yesApplied General Topology, 2012
We correct the proof of Theorem 2.9 of the paper mentioned in the title (published in Applied General Topology, 13 No.1 (2012), 11-19).
Ofelia T. Alas   +2 more
doaj   +1 more source

AN ADAPTIVE ORGANIZATION METHOD OF GEOVIDEO DATA FOR SPATIO-TEMPORAL ASSOCIATION ANALYSIS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Public security incidents have been increasingly challenging to address with their new features, including large-scale mobility, multi-stage dynamic evolution, spatio-temporal concurrency and uncertainty in the complex urban environment, which require ...
C. Wu   +6 more
doaj   +1 more source

Means on scattered compacta

open access: yesTopological Algebra and its Applications, 2014
We prove that a separable Hausdor_ topological space X containing a cocountable subset homeomorphic to [0, ω1] admits no separately continuous mean operation and no diagonally continuous n-mean for n ≥ 2.
Banakh T., Bonnet R., Kubis W.
doaj   +1 more source

Investigating the Optical Phase Conjugation Reconstruction Phenomenon of Light Multiply Scattered by a Random Medium

open access: yesIEEE Photonics Journal, 2010
The optical phase conjugation (OPC) phenomenon of light multiply scattered through a macroscopic scattering medium is simulated using the pseudospectral time-domain (PSTD) technique.
Snow H. Tseng
doaj   +1 more source

Quantum Holography [PDF]

open access: yes, 2001
We propose to make use of quantum entanglement for extracting holographic information about a remote 3-D object in a confined space which light enters, but from which it cannot escape.
Abouraddy   +11 more
core   +2 more sources

Correlation of Intensity Fluctuations for Scattering of a Partially Coherent Plane-Wave Pulse

open access: yesApplied Sciences, 2019
We derived analytical expressions for the correlation of intensity fluctuations of a partially coherent Gaussian Schell-model plane-wave pulse scattered by deterministic and random media.
Yongtao Zhang   +3 more
doaj   +1 more source

Discovery of an extended debris disk around the F2V star HD 15745 [PDF]

open access: yes, 2007
Using the Advanced Camera for Surveys aboard the Hubble Space Telescope, we have discovered dust-scattered light from the debris disk surrounding the F2V star HD 15745. The circumstellar disk is detected between 2.0" and 7.5" radius, corresponding to 128
Baraffe I.   +6 more
core   +1 more source

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