Results 21 to 30 of about 6,336 (186)
The Effects of Compression on the Detection of Atrial Fibrillation in ECG Signals
Applied Sciences, 2021 Although Atrial Fibrillation (AF) is the most frequent cause of cardioembolic stroke, the arrhythmia remains underdiagnosed, as it is often asymptomatic or intermittent.
Raquel Cervigón +4 more
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Video Coding Using 3D Dual-Tree Wavelet Transform
EURASIP Journal on Image and Video Processing, 2007 This work investigates the use of the 3D dual-tree discrete wavelet transform (DDWT) for video coding. The 3D DDWT is an attractive video representation because it isolates image patterns with different spatial orientations and motion directions and ...
Vetro Anthony +3 more
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, 2020 The transfer and storage of images is done through compression technology using various transformations to find suitable transformations for image analysis and compression, wavelet based images are analyzed with image compression technology, which is ...
Abdulrahman, Asma Abdulelah +2 more
core +1 more source
The Journal of Engineering, 2022 Orthogonal frequency division multiple access (OFDMA) has been attracting much attention in the recent generation of wireless communications to meet the required demands arising from the explosive growth of Internet, multimedia and broadband services ...
Nagi H. Al‐Ashwal +3 more
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Robust Image Embedded Watermarking Using DCT and Listless SPIHT
Future Internet, 2017 This paper presents a DCT-based (DCT: discrete cosine transform) listless set partitioning in hierarchical trees (SPIHT) digital watermarking technique that is robust against several common attacks such as cropping, filtering, sharpening, noise ...
J. L. Divya Shivani, Ranjan K. Senapati
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Three-Dimensional SPIHT Coding of Volume Images with Random Access and Resolution Scalability
EURASIP Journal on Image and Video Processing, 2008 End users of large volume image datasets are often interested only in certain features that can be identified as quickly as possible. For hyperspectral data, these features could reside only in certain ranges of spectral bands and certain spatial areas ...
William A. Pearlman, Emmanuel Christophe
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Enhanced SPIHT Algorithm with Pipelined Datapath Architecture Design
Electrica, 2019 Set partitioning in hierarchical trees(SPIHT) is an efficient algorithm which is used for the image compressionwidely. SPIHT operates sequentially so, its parallel implementation isdifficult.
Serap Cekli, Ali Akman
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A Very Compact AES-SPIHT Selective Encryption Computer Architecture Design with Improved S-Box
Journal of Engineering, 2013 The “S-box” algorithm is a key component in the Advanced Encryption Standard (AES) due to its nonlinear property. Various implementation approaches have been researched and discussed meeting stringent application goals (such as low power, high throughput,
Jia Hao Kong +2 more
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Adaptive two-step method for providing the desired visual quality for SPIHT
Радіоелектронні і комп'ютерні системи, 2022 Lossy compression has been widely used in various applications due to its variable compression ratio. However, distortions are introduced unavoidably, and this decreases the image quality.
Fangfang Li
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Memory Efficient Set Partitioning in Hierarchical Tree (MESH) for Wavelet Image Compression
IEICE Transactions on Communications, 2012 This paper presents a memory efficient version of set partitioning in hierarchical tree (SPIHT). The proposed coder called Memory Efficient SPIHT (MESH) uses a single re-usable list instead of three continuously growing linked lists as in conventional SPIHT.
Farid Ghani +3 more
openaire +1 more source