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2018
This chapter presents technical details and sparsity property of Discrete Cosine Transform (DCT). The hybrid multibiometric watermarking technique using DCT-DWT is explained and analyzed in this chapter. The comparison of presented watermarking technique with existing watermarking techniques is also given in this chapter.
Rohit M. Thanki +2 more
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This chapter presents technical details and sparsity property of Discrete Cosine Transform (DCT). The hybrid multibiometric watermarking technique using DCT-DWT is explained and analyzed in this chapter. The comparison of presented watermarking technique with existing watermarking techniques is also given in this chapter.
Rohit M. Thanki +2 more
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High performance VLSI architecture for 3-D DWT (discrete Wavelet Transform)
2018 2nd International Conference on Inventive Systems and Control (ICISC), 2018In the image and video processing industry, Video Compression is the major concern to take care of, which efficiently deals many applications include Medical Image Processing, Broadcasting Scenarios and many more. This kind of compression takes much processing compare to the normal image compression methods, because video processing contains lots of ...
R. Karthikeyan, Ganapathi Hegde
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Development of Discrete Wavelet Transform (DWT) toolbox for signal processing applications
2012 International Conference on Biomedical Engineering (ICoBE), 2012Discrete Wavelet Transform (DWT) plays a significant role in several image and signal processing applications. Most of the researchers are using different wavelet toolboxes for their application and research investigation. In this work, we presented a development of DWT toolbox using Visual Basic 6.5.
Mousa K. Wali +3 more
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Distributed arithmetic architecture of Discrete Wavelet Transform (DWT) with hybrid method
2013 IEEE 20th International Conference on Electronics, Circuits, and Systems (ICECS), 2013This paper presents the design and implementation of distributed arithmetic (DA) architectures of three-dimensional (3-D) Discrete Wavelet Transform (DWT) with hybrid method for medical image compression. Due to the separability property of the multi-dimensional Haar and Daubechies, the proposed architecture has been implemented using a cascade of ...
Noor Huda Ja'afar +2 more
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Vlsi Architecture for 2D-Discrete Wavelet Transform (DWT) Based Lifting Method
Indian Journal of Public Health Research & Development, 2017In this research work, the VLSI based 2D-DWT (Discrete Wavelet Transformation) with lifting method is proposed to improve the performance. Discrete Wavelet based simulation generates efficient image compression with higher compression ratios. Lifting method based 2D-DWT is implemented by using the 1D-DWT architecture with improvement in the picture ...
K Lakshmi Narayanan, G P Ramesh
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Discrete Wavelet Transform (DWT)
2015The wavelet transform can be seen as a wavelet-based expansion (decomposition) of a finite-energy signal. In the discrete wavelet transform (DWT), economy in the representation of the signal and possibility of perfect signal reconstruction (PR) are crucial.
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Enhancement of Discrete Wavelet Transform (DWT) for Image Transmission over Internet
2011 Eighth International Conference on Information Technology: New Generations, 2011In this paper, a wavelet-based image transmission scheme has been proposed. The proposed scheme has used discrete wavelet transform to transform a digital image from spatial domain into frequency domain. For wavelet transformation phase, Haar wavelet transformation has been used. However, it is computationally rigorous.
Kamrul Hasan Talukder, Koichi Harada
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Design and Comparison of Discrete Wavelet Transform Based OFDM (DWT-OFDM) System
2018 Tenth International Conference on Ubiquitous and Future Networks (ICUFN), 2018Orthogonal frequency division multiplexing (OFDM) that is typical for the current fourth generation mobile communication system, is a multi-carrier modulation (MCM) system that enables high-speed communication using multiple carriers. The existing OFDM scheme that maps symbols to subcarriers using an inverse fast Fourier transform (iFFT) operation uses
Jun-Gu Lee, Heung-Gyoon Ryu
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A robust image watermarking technique using 2-level discrete wavelet transform (DWT)
2016 2nd International Conference on Communication Control and Intelligent Systems (CCIS), 2016The exponential growth in digital data over the internet has increased the requirement of a robust and high quality watermarking techniques. In general, the image watermarking techniques embed the binary or grayscale watermark into the cover image or into many multimedia images.
Rita Choudhary, Girish Parmar
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Partial shading fault diagnosis in PV system with discrete wavelet transform (DWT)
2014 International Conference on Renewable Energy Research and Application (ICRERA), 2014The homeowners PV system want to maximize the total energy harvesting from their installed resident PV system (RPS), especially if there is a feed-in tariff (FIT) in play. In this regard, fault detection in solar photovoltaic (PV) arrays allows to expedite PV system recovery time.
M. Davarifar +4 more
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