Results 111 to 120 of about 2,484,228 (241)
Lightweight Data Compression in Wireless Sensor Networks Using Huffman Coding
International Journal of Distributed Sensor Networks, 2014 This paper presents a lightweight data compression method for wireless sensor networks monitoring environmental parameters with low resolution sensors. Instead of attempting to devise novel ad hoc algorithms, we show that, given general knowledge of the ...
Henry Ponti Medeiros +3 more
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Huffman Deep Compression of Edge Node Data for Reducing IoT Network Traffic
IEEE AccessData compression at the Internet of Things (IoT) edge node aims to minimize data traffic in smart cities. The traditional Huffman Coding Algorithm (HCA) is shown as the most effective compression algorithm for sensor data.
Ammar Said Nasif +4 more
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HUFFMAN CODING AS A NONLINEAR DYNAMICAL SYSTEM [PDF]
International Journal of Bifurcation and Chaos, 2011 In this paper, source coding or data compression is viewed as a measurement problem. Given a measurement device with fewer states than the observable of a stochastic source, how can one capture their essential information? We propose modeling stochastic sources as piecewise-linear discrete chaotic dynamical systems known as Generalized Luröth Series ...
openaire +2 more sources
, 2017 LAPAN-A3/IPB satellite is the latest Indonesian experimental microsatellite with remote sensing and earth surveillance missions. The satellite has three optical payloads, which are multispectral push-broom imager, digital matrix camera and video camera ...
P. Hakim, Rizki Permala
semanticscholar +1 more source
, 2017 Least Significant Bit method can be used to hide image data into another image, but it need 8 bytes of data to store 1 bit of data, therefore, to store an image with red, green and blue channel. It would require 24 times the size of the image itself.
Dian Rachmawati, A. Amalia, J. Surya
semanticscholar +1 more source
Electrocardiograph compression based on sifting process of empirical mode decomposition
Electronics Letters, 2016 A new empirical mode decomposition (EMD)‐based electrocardiograph (ECG) compressor is presented. Utilising the sifting process in EMD, the spline fitting function of the successive mean extrema together with the first intrinsic mode functions can ...
Chaojun Zhao +3 more
doaj +1 more source
Video data compression using artificial neural network differential vector quantization [PDF]
An artificial neural network vector quantizer is developed for use in data compression applications such as Digital Video. Differential Vector Quantization is used to preserve edge features, and a new adaptive algorithm, known as Frequency-Sensitive ...
Ahalt, Stanley C. +2 more
core +1 more source
Is every compact code Huffman?
Discrete Mathematics, 1992 The author shows that not every compact code is Huffman, but there is an equivalence relation between codes upto which all compact codes are Huffman.
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Image Watermarking based on Huffman Coding and Laplace Sharpening
مجلة كلية التربية للبنات, 2019 In this paper, an algorithm through which we can embed more data than the regular methods under spatial domain is introduced. We compressed the secret data using Huffman coding and then this compressed data is embedded using laplacian sharpening method ...
Muna M. Lafta
doaj
A cryptographic method to have a secure communication of health care digital data into the cloud
AutomatikaCloud computing is a technology that holds great promise and has potential to revolutionize the healthcare sector. Many security and privacy issues are brought up by the cloud’s centralization of data for both patients and healthcare professionals. There
K. Selvakumar, S. Lokesh
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