Results 181 to 190 of about 83,293 (195)
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2001
This chapter takes up the design of discrete wavelet transforms based on oversampled filter banks. In this case the wavelets form an overcomplete basis, or frame. In particular, we consider the design of systems that are analogous to Daubechies’ orthonormal wavelets — that is, the design of minimal length wavelet filters satisfying certain polynomial ...
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This chapter takes up the design of discrete wavelet transforms based on oversampled filter banks. In this case the wavelets form an overcomplete basis, or frame. In particular, we consider the design of systems that are analogous to Daubechies’ orthonormal wavelets — that is, the design of minimal length wavelet filters satisfying certain polynomial ...
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Speech emotion recognition using DWT
2015 IEEE International Conference on Computational Intelligence and Computing Research (ICCIC), 2015Emotion recognition from speech helps us in improving the effectiveness of human-machine interaction. This paper presents a method to identify suitable features in DWT domain and improve good accuracy. In this work, 7 emotions (Berlin Database) are recognized using Support Vector Machine (SVM) classifier.
S. Lalitha +3 more
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DWT based hierarchical video segmentation
2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353), 2003To provide multimedia applications with new functionalities, such as content-based interactivity and scalability, the new video coding standard, MPEG-4 relies on content-based representation. This means a prior decomposition of a video sequence into semantically meaningful, physical objects.
VENKATESWARAN, SUNDER, DESAI, UB
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Hybrid DWT-SVD video watermarking
2008 International Conference on Innovations in Information Technology, 2008Video watermarking is a relatively new technology that has been proposed to solve the problem of illegal manipulation and distribution of digital video. By virtue of this technology, copyright information is embedded in the video data to provide ownership verification. In this paper, we propose an effective, robust, and imperceptible video watermarking
Lama Rajab, Tahani Al-Khatib, Ali Al-Haj
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DWT-based error concealment techniques
Proceedings DCC 2002. Data Compression Conference, 2003Summary form only given. This paper describes an adaptive error recovery technique for a DWT-based coding and transmission system, which recovers singularity information as well as continuity. The approach provided in this paper not only interpolates from the boundary, but also maintains the sharpness in background instead of smoothing the ...
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Kompresija videosignala primjenom DWT
2009Emitiranje digitalnih video signala zahtijeva visoku kvalitetu slike, uz istovremeno korištenje male količine podataka. U kodiranju videa najrašireniji standardi temeljeni na diskretnoj kosinusnoj transformaciji (DCT) kao što su MPEG-2 i H.264/AVC. JPEG2000 format za kodiranje mirnih slika, temeljen na diskretnoj wavelet transformaciji (DWT) već se ...
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DCT, DWT, SVD & integrated DCT-DWT based robust digital image watermarking algorithm
Communication and Computing Systems, 2016Kamini Negi, Rahul Chauhan
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Hybrid DCT-DWT-SVD Watermarking
In this chapter, we present the performance of a composite watermarking algorithm that utilizes DCT, DWT, and SVD, building upon previously existing systems for robust digital image watermarking. The proposed DCT-DWT-SVD-based hybrid method uses the energy compaction, resolution in the multi-scale domain, and stability properties of SVD to enhance the ...Eirtty Kapoor +3 more
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