Results 271 to 280 of about 7,321,963 (311)
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Applied Optics, 1972
A system for extracting the phase components of an optical traveling wave field has been constructed. This system consists of the Mach-Zehnder interferometer to capture the wave field as the hologram, a photoelectronic scanning system, and an analog computing circuit.
Y, Ichioka, M, Inuiya
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A system for extracting the phase components of an optical traveling wave field has been constructed. This system consists of the Mach-Zehnder interferometer to capture the wave field as the hologram, a photoelectronic scanning system, and an analog computing circuit.
Y, Ichioka, M, Inuiya
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Detection of Direction of Contrast
1990Abstract Because D.B., when he acknowledges having some sort of impression or feeling when a stimulus is abruptly presented, fails to ascribe any sense of ‘brightness’ to the experience — in fact, on one occasion he said, ‘it is as though I imagine that I am moving my finger in front of my eyes in the dark’ — it seemed possible that he ...
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OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference, 2008
We investigate an MLSD-based optical receiver which enables effective detection of DPSK with only one photo-diode and without delay interferometer. The system exploits the uncompensated chromatic dispersion to deliver robust and reliable data detection.
M. FRANCESCHINI +3 more
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We investigate an MLSD-based optical receiver which enables effective detection of DPSK with only one photo-diode and without delay interferometer. The system exploits the uncompensated chromatic dispersion to deliver robust and reliable data detection.
M. FRANCESCHINI +3 more
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Optical Fiber Communication Conference, 2014
In this paper we review the prior works on DDO-OFDM systems, including the traditional DDO-OFDM that utilizes single band and single polarization, the multiband DDOOFDM superchannel, and the dual-polarization (PDM) DDO-OFDM.
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In this paper we review the prior works on DDO-OFDM systems, including the traditional DDO-OFDM that utilizes single band and single polarization, the multiband DDOOFDM superchannel, and the dual-polarization (PDM) DDO-OFDM.
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Component Detection in Directed Networks
Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management, 2014Community detection has been one of the fundamental problems in network analysis. Results from community detection (for example, grouping of products by latent category) can also serve as information nuggets to other business applications, such as product recommendation or taxonomy building.
Yu-Keng Shih +6 more
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Directional filtering in edge detection
IEEE Transactions on Image Processing, 1998Two-dimensional (2-D) edge detection can be performed by applying a suitably selected optimal edge half-filter in n directions. Computationally, such a two-dimensional n-directional filter can be represented by a pair of real masks, that is, by one complex-number matrix, regardless of the number of filtering directions, n.
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2021
Once we understood how dark matter can be produced in the early Universe, from the inflationary phase to the thermal one, passing through the reheating process, it is time to question the possibility to detect this dark component largely present in our galaxy.
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Once we understood how dark matter can be produced in the early Universe, from the inflationary phase to the thermal one, passing through the reheating process, it is time to question the possibility to detect this dark component largely present in our galaxy.
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Directions in Incident Detection and Response
IEEE Security & Privacy Magazine, 2011Richard Bejtlich leads a conversation on how incident detection and response (IDR) teams' focus on detecting and preventing attacks has moved from targeting OSs to unauthorized-access-application functionality and data. He discusses why this makes IDR so much more difficult and what these new targets mean for IDR. Department editors Gunnar Peterson and
Richard Bejtlich +2 more
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How to Detect Hayman Directions
Computational Methods and Function Theory, 2008In order to answer the question in the title of this paper, the author introduces a class of \textit{Hayman exceptional functions}. He expects that it plays a similar role for the study of Hayman directions as Julia exceptional functions do for Julia directions, a characterization of meromorphic functions without any Hayman directions by means of this ...
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Directional Feature Detection and Correspondence
2005A method is proposed to detect useful directional feature points other than corner points considering that the number of corner points may not be sufficient in a scene. This is achieved by directional analysis of properties of image points by virtue of the proposed gradient operators with different direction topologies.
Wen-Hao Wang, Fu-Jen Hsiao, Tsuhan Chen
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