Relevant bibliographies by topics / DWT

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'DWT'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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Journal articles on the topic "DWT"

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Dabou, Raoult Teukam, Innocent Kamwa, Jacques Tagoudjeu, and Francis Chuma Mugombozi. "Sparse Signal Reconstruction on Fixed and Adaptive Supervised Dictionary Learning for Transient Stability Assessment." Energies 14, no. 23 (2021): 7995. http://dx.doi.org/10.3390/en14237995.

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Fixed and adaptive supervised dictionary learning (SDL) is proposed in this paper for wide-area stability assessment. Single and hybrid fixed structures are developed based on impulse dictionary (ID), discrete Haar transform (DHT), discrete cosine transform (DCT), discrete sine transform (DST), and discrete wavelet transform (DWT) for sparse features extraction and online transient stability prediction. The fixed structures performance is compared with that obtained from transient K-singular value decomposition (TK-SVD) implemented while adding a stability status term to the optimization probl
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Puneeth, Kumar D. N., and N. Eshwarappa M. "An Efficient DWT-DAPM Technique for PAPR Reduction in OFDM System." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 3 (2020): 1691–93. https://doi.org/10.35940/ijeat.C5531.029320.

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In this paper, Discrete Wavelet Transform (DWT) Orthogonal Frequency Division Multiplexing (OFDM) system is compared with Discrete Cosine Transform (DCT) and Discrete Fourier Transform (DFT) OFDM systems. The channel noise is modelled with A white Gaussian Model (AWGN), the fading is the impairment in the channel and modelled by Rayleigh fading which is frequency selective fading channel and flat fading channel. The comparisons of Peak to Average Power Ratio (PAPR) and Bit Error Rate (BER) are made using modulation techniques such as Differential Amplitude and Phase Modulation (DAPM), Quadratu
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Amhar, Fahmi, Endang Purnama Giri, Florence Elfriede Sinthauli Silalahi, et al. "Ownership Protection on Digital Elevation Model (DEM) Using Transform-Based Watermarking." ISPRS International Journal of Geo-Information 11, no. 3 (2022): 200. http://dx.doi.org/10.3390/ijgi11030200.

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This research aims to protect Digital Elevation Model (DEM) data from piracy or counterfeiting. An invisible watermark inserted into the data, which will not considerably change the data value, is necessary. The proposed method involves the use of the two-dimensional discrete cosine transform (2D DCT), a combination of 2D DCT and discrete wavelet transform (DWT), and two-dimensional discrete Fourier transform (2D DFT) in the frequency domain. The data used include a National DEM file downloaded from the geoportal of the Geospatial Information Agency (Badan Informasi Geospasial—BIG). Three file
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Sujith, K. Satya. "High performance DA-based DCT, DWT and DHT." IOSR Journal of Applied Chemistry 5, no. 6 (2013): 64–70. http://dx.doi.org/10.9790/5736-0566470.

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Sujith, K. Satya. "High performance DA-based DCT, DWT and DHT." IOSR Journal of Electronics and Communication Engineering 8, no. 5 (2013): 52–58. http://dx.doi.org/10.9790/2834-0855258.

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Mousa Al-Khuzaay, Maryam I., and Waleed A. Mahmoud Al-Jawher. "New Proposed Mixed Transforms: CAW and FAW and Their Application in Medical Image Classification." International Journal of Innovative Computing 13, no. 1-2 (2023): 15–21. http://dx.doi.org/10.11113/ijic.v13n1-2.414.

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The transformation model plays a vital role in medical image processing. This paper proposed new two Mixed Transforms models that are the hybrid combination of linear and nonlinear Transformations techniques. The first mixed transform is computed in three steps: calculate 2D discrete cosine transform (DCT) of the image, and applying Arnold Transform (AT) on the DCT coefficients, and applying the discrete Wavelet Transform (DWT) on the result to get which was abbreviated as (CAW). The second mixed transform consists of firstly computing the discrete Fourier transform (DFT), net applying the Arn
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Tang, Ling, Ming Ju Chen, and Hong Song. "Hybrid Color Image Compression Using Discrete Cosine Transform and Discrete Wavelet Transform." Applied Mechanics and Materials 198-199 (September 2012): 244–48. http://dx.doi.org/10.4028/www.scientific.net/amm.198-199.244.

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In this research we undertake a study of image compression based on the discrete cosine transform(DCT) and discrete wavelet transform(DWT). Then a hybrid color image compression algorithm based on DCT and DWT is proposed. This algorithm is implemented through transform the color image using DWT in the YCbCr space first, and then DCT in the low frequency, adopt huffman coding, RLE and arithmetic coding in the encoded mode. In experiments, the results outperform the only DCT and the only DWT typically higher in peak signal-to-noise ratio and have better visual quality.
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Setyono, Andik, and De Rosal Ignatius Moses Setiadi. "Image watermarking using discrete wavelet-tchebichef transform." Indonesian Journal of Electrical Engineering and Computer Science 16, no. 3 (2019): 1416. http://dx.doi.org/10.11591/ijeecs.v16.i3.pp1416-1423.

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<span>Image watermarking is one of the most popular techniques for authenticating copyright on the digital image. Many research on image watermarking has proved that the joint of Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT) combinations can improve both imperceptibility and robustness when compared to DCT or DWT only. Discrete Tchebichef Transform (DTT) denotes an alternative transformation that has a similarity property with DCT. DTT has an advantage in reducing memory requirements during computing, so the calculation speed is much faster than DCT. This study tes
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Aulia, Suci, and Arif Setiawan. "PENGENALAN TULISAN TANGAN KARAKTER HIRAGANA MENGGUNAKAN DCT, DWT, DAN K-NEAREST NEIGHBOR." Jurnal Elektro dan Telekomunikasi Terapan 4, no. 1 (2017): 467. http://dx.doi.org/10.25124/jett.v4i1.993.

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Penelitian untuk mengenali karakter huruf hiragana berbasis image processing telah banyakdilakukan dan bahkan tingkat akurasi hampir mendekati 100%. Namun citra masukkan yangdigunakan masih berupa karakter huruf jepang hasil print-out sedangkan untuk masukkan berupatulisan tangan belum dilakukan. Maka pada penelitian ini diujikan pengenalan huruf hiragana yangberasal dari tulisan tangan berformat .jpeg. Dari beberapa strudi terkait, pendekatan kompresi yangpaling sering digunakan untuk citra JPEG adalah algoritma DCT dan DWT, sehingga keduaalgoritma tersebut digunakan pada penelitian ini untuk
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Apu Hosen, Md, Shahadat Hoshen Moz, Sk Shalauddin Kabir, Md Nasim Adnan, and Syed Md. Galib. "In-depth exploration of digital image watermarking with discrete cosine transform and discrete wavelet transform." Indonesian Journal of Electrical Engineering and Computer Science 33, no. 1 (2024): 581. http://dx.doi.org/10.11591/ijeecs.v33.i1.pp581-590.

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Digital image watermarking is a crucial technique used to protect the integrity and ownership of digital images by embedding imperceptible watermarks into the image content. This review concentrates on the utilization of discrete cosine transform (DCT) and discrete wavelet transform (DWT) in digital image watermarking schemes. DCT, widely used in image compression like JPEG, is an attractive choice for watermarking, modifying DCT coefficients with minimal impact on image quality. On the other hand, DWT offers multiresolution representation, enabling better localization and robustness against a
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Dissertations / Theses on the topic "DWT"

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Bis, Jan. "Řízení převíječky sádrokartonářské pásky (DWT)." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-316067.

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This thesis deals with a description of the industrial machine of the DWT (drywall tape) rewinder. The winder rewinds and cuts the drywall tape tape into smaller tapes, that are then sold. The first part contains a description of the winder, its structure and functions of its individual parts. The second part contains a description of the control system and the power wiring of winder. The next section contains a description of programming and setting of PLC, frequency inverters, and touch panel. Some modifications are then described when putting the winder into operation. The winder has been s
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Wichakool, Warit 1977. "A comparative study of DCT, LOT, and DWT-based image coders." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86749.

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Thesis (M.Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.<br>Includes bibliographical references (leaves 108-109).<br>by Warit Wichakool.<br>M.Eng.and S.B.
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Kupka, Jan. "Vodoznačení digitálních dat." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217292.

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The main aim of this project is to implement two different types of the watermarking algorithm in frequency (transforamtion) domain. Because of the huge amount of the watermarking algorithms is this thesis dedicated to the watermarking methods in the frequency domain. These methods use kind of transformation implemented on the original data, the second step is modification of transformation coeficients. This project is dedicated to the methods which use discrete wavelet transformation. Nowdays the most popular transformation, which meets the best efforts. The aim of every method is to embeed t
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Murugesan, Somasekar. "Benchmarking of Sleipnir DSP Processor, ePUMA Platform." Thesis, Linköpings universitet, Datorteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-74080.

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Choosing a right processor for an embedded application, or designing a new pro-cessor requires us to know how it stacks up against the competition, or sellinga processor requires a credible communication about its performance to the cus-tomers, which means benchmarking of a processor is very important. They arerecognized world wide by processor vendors and customers alike as the fact-basedway to evaluate and communicate embedded processor performance. In this the-sis, the benchmarking of ePUMA multiprocessor developed by the Division ofComputer Engineering, ISY, Linköping University, Sweden wi
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Ghosh, Debeshi D. "Audio Watermarking Using DWT Algorithm and Symmetric Key Cryptography." Thesis, California State University, Long Beach, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10263604.

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<p> Watermarking is the process of embedding information into a carrier signal such as audio, video, and images. It is widely used to protect proprietary information in the signal to prevent information theft or duplicity. In this project, an audio watermarking system with dual layer security has been implemented. The entire system is divided into two sections that are independent, but have been combined, to make a unique system that provides increased levels of robustness. The first part of the project involves encrypting an embedded image (watermark) using the XOR method of symmetric key cry
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Fontes, Ramiro C. "Applications of Allouba's Differentiation Theory and Semi-SPDEs." Kent State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=kent1271438954.

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Mei, Liming, and james mei@ieee org. "A DWT Based Perceptual Video Coding Framework - Concepts, Issues and Techniques." RMIT University. Electrical and Computer Engineering, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20090506.103244.

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The work in this thesis explore the DWT based video coding by the introduction of a novel DWT (Discrete Wavelet Transform) / MC (Motion Compensation) / DPCM (Differential Pulse Code Modulation) video coding framework, which adopts the EBCOT as the coding engine for both the intra- and the inter-frame coder. The adaptive switching mechanism between the frame/field coding modes is investigated for this coding framework. The Low-Band-Shift (LBS) is employed for the MC in the DWT domain. The LBS based MC is proven to provide consistent improvement on the Peak Signal-to-Noise Ratio (PSNR) of the co
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Islam, Mohd Siblee. "A Decision Support System for StressDiagnosis using ECG Sensor." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-11769.

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Diagnosis of stress is important because it can cause many diseases e.g., heart disease, headache, migraine, sleep problems, irritability etc. Diagnosis of stress in patients often involves acquisition of biological signals for example heart rate, finger temperature, electrocardiogram (ECG), electromyography signal (EMG), skin conductance signal (SC) etc. followed up by a careful analysis of the acquired signals. The accuracy is totally dependent on the experience of an expert. Again the number of such experts is also very limited. Heart rate is considered as an important parameter in determin
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Sedlář, Karel. "Komprese genomických signálů pro klasifikaci a identifikaci organismů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220018.

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Modern classification of organisms is performed on molecular data. These methods rely on multiple alignment of sequences of characters which make them computationally demanding. Only small parts of genomes can be compared in reasonable time. In this paper, the novel algorithm based on conversion of the whole genome sequences to cumulative phase signals is presented. Dyadic wavelet transform is used for lossy compression of signals by redundant frequency bands elimination. Signal classification is then performed as a cluster analysis using Euclidian metrics where multiple alignment is replaced
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SOUZA, MARCIO ALBUQUERQUE DE. "ARBITRARILY SHAPED OBJECT CODING USING SHAPE-ADAPTATIVE DWT AND SHAPE-ADAPTATIVE SPIHT." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2001. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=1748@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>Codificação de objetos de forma arbitrária extraídos de imagens regulares é um dos assuntos de maior desafio nos mais recentes padrões de codificação de vídeo (MPEG-4). Neste estudo, é proposta uma nova estratégia de codificação de objetos envolvendo maior eficiência na decomposição e quantização de sub-bandas. A técnica de transformação proposta envolve Transformada Wavelet Discreta (DWT) e a de quantização é baseada no algoritmo de Partição de Conjuntos em Árvores Hierárquicas (SPIHT).<br>Coding of arbitrarily shaped obj
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Books on the topic "DWT"

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Potter, Beatrix. Hanes Mrs Tigi-dwt. Cyhoeddiadau Sain, 1996.

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Ariana, I. Made. Optimasi penggunaan propeller sebagai penggerak kapal dan pembangkit tenaga listrik pada KLB Maruta Jaya 900 DWT: Laporan penelitian. Jurusan Teknik Sistem Perkapalan, Fakultas Teknologi Kelautan, Lembaga Penelitian, Institut Teknologi Sepuluh Nopember, 1997.

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Pertamina (Organization). Direktorat Pembekalan dan Pemasaran Dalam Negeri., ed. Analisis dampak lingkungan pengembangan Dermaga III kapasitas 120.000 DWT dan pengerukan kolam pelabuhan di pelabuhan khusus Tanjung Uban, Pulau Bintan, Riau. Direktorat Pembekalan dan Pemasaran Dalam Negeri, Pertamina, 2000.

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Wijnberg, Nachoem M. Eerst dit dan dat: Gedichten. Contact, 2004.

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Freudenthal, August. Heideckern: Dut un dat in noordhannöversch platt. Kommissionsverlag der Missionshandlung Hermannsburg, 1989.

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Ewo, Jon. Dit gatene går når det blir natt: Roman. Gyldendal norsk forlag, 1992.

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Valkeapää, Nils-Aslak. Nu guhkkin dat mii lahka =: Så fjernt det nære. DAT, 1994.

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author, Olsen Niels, Fischli Fredi author, Roelandt Els author, Verbiest Dirk translator, Shields Mari translator, and Decroos Bart translator, eds. Jan De Vylder: Wat. is. dit. waar. was. dat. Posture Editions, 2020.

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Bahr, Gerd. Wo heet dut und dat op Platt?: Kleiner plattdeutscher Sprachfuhrer. Stadt-Sparkasse Stade, 1985.

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Hadi, Puzi. Dot dot dot. Esastera Enterprise, 2013.

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Book chapters on the topic "DWT"

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Dhar, Pranab Kumar, and Tetsuya Shimamura. "DWT-DCT-Based Audio Watermarking Using SVD." In SpringerBriefs in Electrical and Computer Engineering. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14800-7_3.

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Shivani and Navdeep Singh. "Gait Recognition Using DWT and DCT Techniques." In Proceedings of International Conference on Communication and Artificial Intelligence. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6546-9_45.

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Selesnick, Ivan W. "The Double Density DWT." In Computational Imaging and Vision. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-015-9715-9_2.

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Shukla, K. K., and Arvind K. Tiwari. "Filter Banks and DWT." In Efficient Algorithms for Discrete Wavelet Transform. Springer London, 2013. http://dx.doi.org/10.1007/978-1-4471-4941-5_2.

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Alessio, Silvia Maria. "Discrete Wavelet Transform (DWT)." In Signals and Communication Technology. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-25468-5_14.

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Emek, Serkan, and Melih Pazarci. "Additive vs. Image Dependent DWT-DCT Based Watermarking." In Multimedia Content Representation, Classification and Security. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11848035_15.

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Dhaked, Devender Kumar. "Combined DCT-DWT Color Image Digital Watermarking Technique." In Studies in Autonomic, Data-driven and Industrial Computing. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3915-9_13.

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Li, De, Yingying Ji, and JongWeon Kim. "A Quantified Audio Watermarking Algorithm Based on DWT-DCT." In Communications in Computer and Information Science. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-27186-1_47.

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Annoni, Ronald, and Carlos Henrique Quartucci Forster. "Experimental Comparison of DWT and DFT for Trajectory Representation." In Intelligent Data Engineering and Automated Learning - IDEAL 2012. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-32639-4_80.

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Patil, Ashvini Sandip, Rupali M. Patil, and Milind M. Shinde. "DWT Based Mosaic Image Steganography." In Techno-Societal 2018. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16848-3_10.

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Conference papers on the topic "DWT"

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Sumarno, Linggo. "Performance of DCT-DWT Feature Extraction in Recognizing Guitar Chords." In 2024 FORTEI-International Conference on Electrical Engineering (FORTEI-ICEE). IEEE, 2024. https://doi.org/10.1109/fortei-icee64706.2024.10824451.

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Negi, Kamini, and Rahul Chauhan. "DCT, DWT, SVD & integrated DCT-DWT based robust digital image watermarking algorithm." In The International Conference on Communication and Computing Systems (ICCCS-2016). CRC Press, 2016. http://dx.doi.org/10.1201/9781315364094-3.

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Navas, K. A., Mathews Cheriyan Ajay, M. Lekshmi, Tampy S. Archana, and M. Sasikumar. "DWT-DCT-SVD based watermarking." In Middleware and Workshops (COMSWARE '08). IEEE, 2008. http://dx.doi.org/10.1109/comswa.2008.4554423.

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Bhojani, Dhaval R., and Ved Vyas Dwivedi. "Innovative video compression technique using DWT-DCT." In 2012 1st International Conference on Emerging Technology Trends in Electronics, Communication and Networking (ET2ECN). IEEE, 2012. http://dx.doi.org/10.1109/et2ecn.2012.6470097.

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Ezhilarasan, M., and P. Thambidurai. "A Hybrid DWT-DCT based video coding." In 2006 Annual IEEE India Conference. IEEE, 2006. http://dx.doi.org/10.1109/indcon.2006.302797.

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Mawande, Swagata, and Hemlata Dakhore. "Video watermarking using DWT-DCT-SVD algorithms." In 2017 International Conference on Computing Methodologies and Communication (ICCMC). IEEE, 2017. http://dx.doi.org/10.1109/iccmc.2017.8282656.

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Hsieh, Ming-Jyh, Ming-Syan Chen, and Philip S. Yu. "Integrating DCT and DWT for approximating cube streams." In the 14th ACM international conference. ACM Press, 2005. http://dx.doi.org/10.1145/1099554.1099588.

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Kansal, Manie, Gursharanjeet Singh, and B. V. Kranthi. "DWT, DCT and SVD Based Digital Image Watermarking." In 2012 International Conference on Computing Sciences (ICCS). IEEE, 2012. http://dx.doi.org/10.1109/iccs.2012.28.

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Cheng, Jun. "Digital watermark algorithm based on DWT and DCT." In 2012 IEEE International Conference on Cyber Technology in Automation, Control, and Intelligent Systems (CYBER). IEEE, 2012. http://dx.doi.org/10.1109/cyber.2012.6319985.

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McLauchlan, Lifford, and Mehrübe Mehrübeoglu. "DWT and DCT embedded watermarking using chaos theory." In SPIE Optical Engineering + Applications. SPIE, 2010. http://dx.doi.org/10.1117/12.863338.

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Reports on the topic "DWT"

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Skone, Timothy J. Ocean Vessel 30K DWT Construction. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/1509423.

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Shensa, M. J. An Inverse DWT for Nonorthogonal Wavelets. Defense Technical Information Center, 1993. http://dx.doi.org/10.21236/ada272064.

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Biagio, Di. L52037 Ductile Fracture Propagation Resistance for Advanced Pipeline Designs. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0011001.

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The development of a method able to evaluate the ductile fracture behavior on pipelines has been documented. Therefore, methods for the determination of material fracture resistance and crack driving force have been accurately investigated. In particular, the techniques to determine the critical fracture characterizing parameter CTOA (crack tip opening angle) have been reviewed in-depth (back-slotted drop weight tear tests [DWTT], two specimen CTOA tests, etc.), and in view of a future pipe-mill application. For a more reliable CTOA estimate the needed following parameters have been investigat
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Wilkowski, Gery. PR-276-184501-R01 Toughness Specification to Avoid Brittle Fracture in New Linepipe Steels. Pipeline Research Council International, Inc. (PRCI), 2020. http://dx.doi.org/10.55274/r0011658.

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Historically, Charpy test results have been used for assessing linepipe steels for fitness-for-service or new pipeline design, and the linepipe steels should be chosen such that the brittle-to-ductile transition temperature of the steel is below the minimum design service temperature. The transition temperature is typically much different for crack initiation versus crack propagation. This study focused on the transition temperature for fracture initiation which is important for liquid as well as high-energy lines. However, in recent studies, different behavior between vintage and newer steels
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Wills, Ann. DFT (and DMFT) for DFT users. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/1989140.

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NMR Publisering. Det internationale Norden. Nordisk Ministerråd, 2013. http://dx.doi.org/10.6027/anp2013-752.

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Wauson, Kerry Wesley. DET Kaizen Summary. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1574729.

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NMR Publicering. Det framtida nordiska hälsosamarbetet. Nordisk Ministerråd, 2014. http://dx.doi.org/10.6027/anp2014-730.

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Anantatmula, R. P. DST pitting annual report. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/330737.

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Koc, Ut-Va, and K. J. Liu. DCT-Based Motion Estimation. Defense Technical Information Center, 1995. http://dx.doi.org/10.21236/ada452980.

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