Results 31 to 40 of about 44,716 (282)

Inactive Region Filling Method for Efficient Compression Using Reinforcement Learning

IEEE Access, 2023
Based on the massive advancements in modern hardware technologies, beyond high-resolution images, immersive and interactive videos have become an important next-generation technology.
Dongsin Kim, Kutub Uddin, Byung Tae Oh
doaj   +1 more source

Formation and Collapse of Quiescent Cloud Cores Induced by Dynamic Compressions

, 2007
(Abridged) We present numerical hydrodynamical simulations of the formation, evolution and gravitational collapse of isothermal molecular cloud cores. A compressive wave is set up in a constant sub-Jeans density distribution of radius r = 1 pc.
Ballesteros-Paredes J., Bonnor W. B., Ebert R., Enrique Vazquez‐Semadeni, Gilberto C. Gomez, Hennebelle P., Javier Ballesteros‐Paredes, Larson R. B., Mohsen Shadmehri, Penston M. V., Penston M. V., Sasao T.   +11 more
core   +1 more source

Dynamics of a strongly interacting Fermi gas: the radial quadrupole mode [PDF]

, 2007
We report on measurements of an elementary surface mode in an ultracold, strongly interacting Fermi gas of 6Li atoms. The radial quadrupole mode allows us to probe hydrodynamic behavior in the BEC-BCS crossover without being influenced by changes in the ...
A. Altmeyer, A. J. Leggett, C. Kohstall, J. Hecker Denschlag, M. J. Wright, R. Grimm, S. Riedl   +6 more
core   +1 more source

Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations

, 2008
We present detailed measurements of the frequency and damping of three different collective modes in an ultracold trapped Fermi gas of $^6$Li atoms with resonantly tuned interactions. The measurements are carried out over a wide range of temperatures. We
Altmeyer, A., Bruun, G. M., Denschlag, J. Hecker, Grimm, R., Guajardo, E. R. Sanchez, Kohstall, C., Riedl, S., Smith, H., Wright, M. J.   +8 more
core   +1 more source

Patch-Based Deep Autoencoder for Point Cloud Geometry Compression

ACM Multimedia Asia, 2021
The ever-increasing 3D application makes the point cloud compression unprecedentedly important and needed. In this paper, we propose a patch-based compression process using deep learning, focusing on the lossy point cloud geometry compression. Unlike existing point cloud compression networks, which apply feature extraction and reconstruction on the ...
You, Kang, Gao, Pan
openaire   +2 more sources

The Deflection of the Two Interacting Coronal Mass Ejections of 2010 May 23-24 as Revealed by Combined In situ Measurements and Heliospheric Imaging [PDF]

, 2012
In 2010 May 23-24, SDO observed the launch of two successive coronal mass ejections (CMEs), which were subsequently tracked by the SECCHI suite onboard STEREO.
Davies, J. A., Davis, C. J., Farrugia, C. J., Lugaz, N., Möstl, C., Roussev, I. I., Temmer, M.   +6 more
core   +1 more source

ANFPCGC++: Point Cloud Geometry Coding Using Augmented Normalizing Flows and Transformer-Based Entropy Model

IEEE Access
As immersive media gains increasing prominence, point clouds have emerged as a preferred data representation for presenting complex 3D scenes. However, the large size of point cloud data poses challenges in terms of storage and real-time transmission ...
Jui-Chiu Chiang, Ji-Jin Chiu, Monyneath Yim   +2 more
doaj   +1 more source

Learning quadrangulated patches for 3D shape parameterization and completion

, 2017
We propose a novel 3D shape parameterization by surface patches, that are oriented by 3D mesh quadrangulation of the shape. By encoding 3D surface detail on local patches, we learn a patch dictionary that identifies principal surface features of the ...
Sarkar, Kripasindhu, Stricker, Didier, Varanasi, Kiran   +2 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

A Viscous Heating Mechanism for the Hot Plasma in the Galactic Center Region

, 2006
In addition to lines originating in a soft phase at ~0.8 keV and to cold molecular clouds, the X-ray spectra from the Galactic center region also exhibit properties similar to those of a diffuse, thin, very hot plasma at 8 keV on a scale of hundreds of ...
Acuna, Bally, Barnett, Belcher, Belmont, Benford, Bennett, Binney, Braginskii, Brogan, Chu, Dogiel, Dogiel, Drell, Ebisawa, Falgarone, Galeev, Goedbloed, Goldreich, Hain, Kaifu, Kaneda, Koyama, Koyama, LaRosa, LaRosa, Launhardt, Lesch, Linker, Linker, Linker, M. Tagger, Masai, Miyazaki, Morris, Morris, Morris, Muno, Neubauer, Neubauer, Oka, Oka, R. Belmont, Revnivtsev, Rosso, Scoville, Serabyn, Southwood, Southwood, Stark, Stark, Tanaka, Tanuma, Valinia, Wang, Warwick, Wolf-Gladrow, Worrall, Wright, Yamauchi, Yamauchi, Yusef-Zadeh   +61 more
core   +4 more sources