Results 11 to 20 of about 416,446 (172)
Improving Response Time for Crowd Management in Hajj
Computers, 2021 Flying Adhoc Network (FANET) is a particular type of Mobile Adhoc Network (MANET) that consists of flying drones or unmanned aerial vehicles (UAVs). MANETs are especially useful in rural and remote areas, where the lack of public networks necessitates ...
Emad Felemban +2 more
doaj +1 more source
Characterising the Photonic-Assisted Coherent Free-Space Link of Sub-THz Data Transmission
IEEE Access, 2023 This study demonstrates a measurement setup of an over-the-air (OTA) sub-THz link using a hybrid system of transmission comprising standard optical communications components and propagating the signal over 6 meters.
Mohanad Dawood Al-Dabbagh +4 more
doaj +1 more source
Fractal and Fractional, 2023 The main objective of this work was to implement the parameter-switching chaos control scheme for fractional-order spherical systems and develop a chaos-based image encryption and transmission system.
Vincent-Ademola Adeyemi +3 more
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Epipolar Consistency in Transmission Imaging [PDF]
IEEE Transactions on Medical Imaging, 2015 This paper presents the derivation of the Epipolar Consistency Conditions (ECC) between two X-ray images from the Beer-Lambert law of X-ray attenuation and the Epipolar Geometry of two pinhole cameras, using Grangeat's theorem. We motivate the use of Oriented Projective Geometry to express redundant line integrals in projection images and define a ...
André, Aichert +6 more
openaire +2 more sources
Sensors, 2009 Image transmission using incoherent optical fiber bundles (IOFB) requires prior calibration to obtain the spatial in-out fiber correspondence in order to reconstruct the image captured by the pseudo-sensor. This information is recorded in a Look-Up Table
Carlos A. Luna +4 more
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Maximum likelihood transmission image reconstruction for overlapping transmission beams [PDF]
1999 IEEE Nuclear Science Symposium. Conference Record. 1999 Nuclear Science Symposium and Medical Imaging Conference (Cat. No.99CH37019), 2000 In many transmission imaging geometries, the transmitted "beams" of photons overlap on the detector, such that a detector element may record photons that originated in different sources or source locations and thus traversed different paths through the object.
Yu, Daniel F. +2 more
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Image transmission through an opaque material [PDF]
Nature Communications, 2010 Optical imaging relies on the ability to illuminate an object, collect and analyze the light it scatters or transmits. Propagation through complex media such as biological tissues was so far believed to degrade the attainable depth as well as the resolution for imaging because of multiple scattering. This is why such media are usually considered opaque.
Popoff, S. M. +4 more
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Joint Early Stopping Criterions for Protograph LDPC Codes-Based JSCC System in Images Transmission
Entropy, 2021 In this paper, a joint early stopping criterion based on cross entropy (CE), named joint CE criterion, is presented for double-protograph low-density parity-check (DP-LDPC) codes-based joint source-channel coding (JSCC) systems in images transmission to ...
Zhiping Xu, Lin Wang, Shaohua Hong
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Parallel transmission for ultrahigh‐field imaging [PDF]
NMR in Biomedicine, 2015 The development of MRI systems operating at or above 7 T has provided researchers with a new window into the human body, yielding improved imaging speed, resolution and signal‐to‐noise ratio. In order to fully realise the potential of ultrahigh‐field MRI, a range of technical hurdles must be overcome.
Padormo, Francesco +3 more
openaire +4 more sources
Sensors, 2012 This paper presents a fast calibration method to determine the transfer function for spatial correspondences in image transmission devices with <em>Incoherent</em><em> </em><em>Optical Fiber</em><em> </em> ...
Carlos Luna Vázquez +5 more
doaj +1 more source