Results 41 to 50 of about 10,310 (245)

Lossless medical image compression through lightweight binary arithmetic coding [PDF]

, 2017
A contextual lightweight arithmetic coder is proposed for lossless compression of medical imagery. Context definition uses causal data from previous symbols coded, an inexpensive yet efficient approach.
Bartrina Rapesta, Joan, Blanes, Ian, Victor Sanchez, Aulí Llinàs, Francesc, Marcellin, Michael W., Serra Sagrsità, Joan, Ian Blanes, Sanchez, Victor, Michael W. Marcellin, Francesc Aulí Llinàs, Joan Bartrina Rapesta, Joan Serra Sagrsità   +11 more
core   +1 more source

Virtually Lossless Compression of Astrophysical Images

EURASIP Journal on Advances in Signal Processing, 2005
We describe an image compression strategy potentially capable of preserving the scientific quality of astrophysical data, simultaneously allowing a consistent bandwidth reduction to be achieved.
Alparone Luciano, Lastri Cinzia, Aiazzi Bruno, Baronti Stefano   +3 more
doaj   +1 more source

ΔRLE: Lossless data compression algorithm using delta transformation and optimized bit-level run-length encoding

Journal of Information and Organizational Sciences, 2021
Lossless data compression algorithms can use statistical redundancy to represent data using a fewer number of bits in comparison to the original uncompressed data.
Branislav Mados, Zuzana Bilanová, Ján Hurtuk   +2 more
doaj   +1 more source

Lossless compression of high-volume numerical data from simulations [PDF]

, 2000
Summary form only given. We propose a lossless algorithm of delta compression (a variant of predictive coding) that attempts to predict the next point from previous points using higher-order polynomial extrapolation. In contrast to traditional predictive
Fritzson, Peter,, Engelson, Vadim,, Fritzson, Dag,   +2 more
core   +1 more source

Impact of Noise on the Power Lossless Compression Quality in Intelligent Power System

Chemical Engineering Transactions, 2016
Based on the study of FPGA architecture and DSP power quality, the data acquisition system, analysis system works, summarize functional modules of the power quality in the data collection process noise were introduced.
W.H. Yang, L.J. Xie, W.L. Zhou
doaj   +1 more source

Programmable Stepwise Heteroepitaxial Growth of Colloidal Crystals With Different Phases

Advanced Materials, EarlyView.
Stepwise heteroepitaxial growth is adapted to colloidal crystal engineering with DNA, enabling face‐centered cubic (fcc) facets to grow on body‐centered cubic (bcc) crystals with 110 facets. This approach tolerates large lattice mismatches, extending heteroepitaxy beyond the limits of conventional atomic systems.
Xiaowei Liu, Yuanwei Li, Ramin Yazdaanpanah, Ye Zhang, Rachel R. Chan, Xiaobing Hu, Yiming Yang, Vinayak P. Dravid, Koray Aydin, Chad A. Mirkin   +9 more
wiley   +1 more source

ROI coding of volumetric medical images with application to visualisation [PDF]

, 2003
This paper presents region of interest (ROI) coding of volumetric medical images with the region itself being three dimensional. An extension to 3D-SPIHT which allows 3D ROI coding is proposed.
Agrafiotis, D, Canagarajah, CN, Bull, DR
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Kinerja dan Performa Algoritma Kompressi Lossless Terhadap Objek Citra Digital [PDF]

, 2010
Kompresi pada citra digital berfungsi untuk memampatkan data agar dapat menghemat tempat penyimpanan dengan atau tanpa mengurangi kualitas dari citra.
Widodo, Suryarini
core  

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source