Results 261 to 270 of about 26,058,575 (297)

Filming the Invisible in 4-D

Scientific American, 2010
Picture this: a movie revealing the inner workings of a cell or showing a nanomachine in action. A new microscopy is making such imaging possible.
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A 4-D approach for amelioration of periodontitis

Medical Hypotheses, 2019
Global prevalence of the severe periodontitis is at the alarming stage and its association with the systemic complications is highly evident which cannot be neglected. An insight into the pathophysiology of the periodontitis reveals that the promising amelioration could only be envisaged with the 4-D/multi-pronged approach of combining antibiotic along
Pooja, Jain, M Aamir, Mirza, Zeenat, Iqbal   +2 more
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4-D broadcasting with MPEG-V

2010 IEEE International Workshop on Multimedia Signal Processing, 2010
Advances in media technologies brought 3-D TV home and 4-D movies to your neighbour. We present a framework for 4-D broadcasting to bring 4-D entertainment home based on MPEG-V standard. A complete framework for 4-D entertainment from authoring of sensory effects to environment description and commanding rendering devices for the sensory effects can ...
Kyoungro Yoon, Bumsuk Choi, Eun-Seo Lee, Tae-Beom Lim   +3 more
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Four-Dimensional Wavelet Compression of 4-D Medical Images Using Scalable 4-D SBHP

2007 Data Compression Conference (DCC'07), 2007
This paper proposes a low-complexity wavelet-based method for progressive lossy-to-lossless compression of four dimensional (4-D) medical images. The subband block hierarchal partitioning (SBHP) algorithm is modified and extended to four dimensions, and applied to every code block independently.
Ying Liu, William A. Pearlman
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4-D display of meteorological data

Proceedings of the 1986 workshop on Interactive 3D graphics - SI3D '86, 1987
The Man-computer Interactive Data Access System (McIDAS) developed at the University of Wisconsin-Madison Space Science and Engineering Center (UW-SSEC) collects large quantities of meteorological data in real time for storage, analysis and display on multi-frame video terminals.
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Autonomous 4-D hyperchaotic oscillator and synchronization

2009 16th International Conference on Digital Signal Processing, 2009
An autonomous hyperchaotic oscillator, which is suitable for synchronization and application in secure communications, is studied. It is based on an LC oscillator and a single amplifier biquad (SAB), coupled by means of a diode. The inductor of the resonant circuit is realized in practice by using the Antoniou gyrator circuit.
Konstantine Giannakopoulos, Theodore L. Deliyannis   +1 more
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4-D ultrafast shear-wave imaging

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2015
Over the last ten years, shear wave elastography (SWE) has seen considerable development and is now routinely used in clinics to provide mechanical characterization of tissues to improve diagnosis. The most advanced technique relies on the use of an ultrafast scanner to generate and image shear waves in real time in a 2-D plane at several thousands of ...
Jean-luc Gennisson, Jean Provost, Thomas Deffieux, Clément Papadacci, Marion Imbault, Mathieu Pernot, Mickael Tanter   +6 more
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VLSI architecture for 4-D depth filtering

Signal, Image and Video Processing, 2013
We propose the application of light field cameras and depth-selective 4-D IIR filtering to enable video surveillance, leveraging the post-capture depth-selective filtering enabled by computational photography. Novel ultralow-complexity differential-form depth-selective 4-D IIR filter algorithms and their corresponding architectures are proposed for ...
Arjuna Madanayake, Randeel Wimalagunarathne, Donald G. Dansereau, Renato J. Cintra, Len T. Bruton   +4 more
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Vessels as 4-D Curves: Global Minimal 4-D Paths to Extract 3-D Tubular Surfaces and Centerlines

IEEE Transactions on Medical Imaging, 2007
In this paper, we propose an innovative approach to the segmentation of tubular structures. This approach combines all of the benefits of minimal path techniques such as global minimizers, fast computation, and powerful incorporation of user input, while also having the capability to represent and detect vessel surfaces directly which so far has been a
Li, Hua, Yezzi, Anthony
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Invariants of flows in 4-d space time

Physics Letters A
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Susan Mathew Panakkal, Parameswaran R., M.J. Vedan   +2 more
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