Approximate DCT image compression using inexact computing

HAF Almurib, TN Kumar… - IEEE Transactions on …, 2017‏ - ieeexplore.ieee.org
This paper proposes a new framework for digital image processing; it relies on inexact
computing to address some of the challenges associated with the discrete cosine transform …

Discrete Cosine Transform based fusion of multi-focus images for visual sensor networks

YAV Phamila, R Amutha - Signal Processing, 2014‏ - Elsevier
This paper presents a simple and efficient multi-focus image fusion scheme explicitly
designed for wireless visual sensor systems equipped with resource constrained, battery …

DCT-like transform for image compression requires 14 additions only

FM Bayer, RJ Cintra - Electronics letters, 2012‏ - IET
A low-complexity 8-point orthogonal approximate discrete cosine transform (DCT) is
introduced. The proposed transform requires no multiplications or bit-shift operations. The …

[HTML][HTML] Energy efficient image coding techniques for low power sensor nodes: a review

G Suseela, YAV Phamila - Ain Shams Engineering Journal, 2018‏ - Elsevier
Abstract Visual Sensors Networks (VSN) are spatially dispersed distributed networks,
consisting of small sensing units and image sensors. They are scattered over a region to …

Low-power VLSI architectures for DCT\/DWT: precision vs approximation for HD video, biomedical, and smart antenna applications

A Madanayake, RJ Cintra, V Dimitrov… - IEEE Circuits and …, 2015‏ - ieeexplore.ieee.org
The DCT and the DWT are used in a number of emerging DSP applications, such as, HD
video compression, biomedical imaging, and smart antenna beamformers for wireless …

Communication performances of IEEE 802.15. 4 wireless sensor motes for data-intensive applications: A comparison of WaspMote, Arduino MEGA, TelosB, MicaZ and …

C Pham - Journal of Network and Computer Applications, 2014‏ - Elsevier
In this paper, we are investigating the communication performances of low-resources sensor
motes that are commonly found in recent smart cities test-beds or used by the research …

Low-cost, low-power and long-range image sensor for visual surveillance

C Pham - Proceedings of the 2nd Workshop on Experiences in …, 2016‏ - dl.acm.org
We present a low-cost, low-power, long-range image sensor built from off-the-shelves
components and enabling fully autonomous and out-of-the-box remote visual surveillance …

Analysis of compressive sensing and energy harvesting for wireless multimedia sensor networks

N Tekin, VC Gungor - Ad Hoc Networks, 2020‏ - Elsevier
One of the main concerns of Wireless Multimedia Sensor Networks (WMSNs) is the huge
data size causing the higher energy consumption in transmission. The high energy …

Low complexity DCT for image compression in wireless visual sensor networks

N Kouadria, N Doghmane, D Messadeg… - Electronics …, 2013‏ - Wiley Online Library
An energy‐efficient discrete cosine transform (DCT) is proposed. It can be used in image
compression in wireless visual sensor networks. It is a combination of the recently proposed …

A class of DCT approximations based on the Feig–Winograd algorithm

CJ Tablada, FM Bayer, RJ Cintra - Signal Processing, 2015‏ - Elsevier
A new class of matrices based on a parametrization of the Feig–Winograd factorization of 8-
point DCT is proposed. Such parametrization induces a matrix subspace, which unifies a …