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An Architecture Design of Threshold-Based Best-Basis Algorithm

S.M. Aroutchelvame, K. Raahemifar
2006 2006 IEEE International Conference on Multimedia and Expo  
The paper also describes the architecture for best-tree selection from 2D wavelet packet decomposition.  ...  In this paper, an architecture for the wavelet-packet based best-basis algorithm for images is proposed.  ...  When the wavelet packet tree is constructed, all the nodes or wavelet packets are marked with flags to one.  ... 
doi:10.1109/icme.2006.262770 dblp:conf/icmcs/AroutchelvameR06 fatcat:oc5h4mec5faqpi7oycynxxjfpq

Parallel adaptive wavelet analysis

R Kutil, A Uhl
2001 Future generations computer systems  
Adapted wavelet analysis in the sense of wavelet packet algorithms is a highly relevant procedure in different types of applications, like, e.g. data compression, feature extraction, classification problems  ...  Therefore, parallel processing is one of the possibilities to accelerate the processing speed.  ...  to parallel wavelet packet decomposition and its specific features and demands (e.g. approaches for performing the best basis algorithm and the irregular decomposition into such a basis on parallel MIMD  ... 
doi:10.1016/s0167-739x(00)00079-0 fatcat:loqw4lut2na6ncfwjnvk4oc5ua

Three-Dimensional Tarp Coding for the Compression of Hyperspectral Images

Y. Wang, J.T. Rucker, J.E. Fowler
2004 IEEE Geoscience and Remote Sensing Letters  
An embedded wavelet-based coder for the compression of hyperspectral imagery is described.  ...  The authors are with the Department of Electrical and Computer Engineering and the Visualization, Analysis, and Imaging Laboratory (VAIL) within the GeoResources Institute (GRI) at the Mississippi State  ...  Additionally, the amount of parallelization is limited and typically relies on pipelining and multiprocessor, i.e., multiple-instruction-multiple-data (MIMD), architectures.  ... 
doi:10.1109/lgrs.2004.824762 fatcat:tnf5dhtlv5ay7m46ez3bhrh6be

A Real-Time Audio Compression Technique Based on Fast Wavelet Filtering and Encoding

Nella Romano, Antony Scivoletto, Dawid Połap
2016 Proceedings of the 2016 Federated Conference on Computer Science and Information Systems  
In this paper we examine a new technique for analysing and compressing speech signals using biorthogonal wavelet filters.  ...  Recently, compression techniques using wavelet transform have received great attention because of their promising compression ratio, signal to noise ratio, and flexibility in representing speech signals  ...  on the compression of images [24] .  ... 
doi:10.15439/2016f296 dblp:conf/fedcsis/RomanoSP16 fatcat:uqnynbjizfdlpj6epkdifl3yjq

3D-PMDC: A parallelized morphological wavelet codec for 3D medical datasets and teleradiology applications

Alberto Signoroni, Mario Pezzoni, Riccardo Leonardi
2011 2011 18th IEEE International Conference on Image Processing  
Multidimensional image compression techniques can be considered as enabling solutions on condition that they are able to guarantee a suitable combination of rate-distortion and computational performance  ...  Modern medical imaging modalities produce increasingly large datasets.  ...  For both codecs, 9x7 wavelet filters was used on 4 levels of decomposition and each volume was divided along the z-direction in three independent tiles of (107,107,106) slices for MR and 75 slices for  ... 
doi:10.1109/icip.2011.6116376 dblp:conf/icip/SignoroniPL11 fatcat:tcqi3mjk7na63pmjtehkq2yweu

GPGPU-based Gaussian Filtering for Surface Metrological Data Processing

Yang Su, Zhijie Xu, Xiangqian Jiang
2008 2008 12th International Conference Information Visualisation  
Considering the evolution of GPU's hardware architecture, the proposed frameworks cover through the transition of graphics-originated concepts for GPGPU programming based on legacy GPUs and the abstraction  ...  He was willing to take a chance on my research from the beginning, and has always pushed me to fill in that one last detail to elevate the level of my thinking and my work.  ...  Figure 6 . 6 18 The noisy image of a sunflowerThe maximum number of wavelet decompositions chosen for this image was 3.  ... 
doi:10.1109/iv.2008.14 dblp:conf/iv/SuXJ08 fatcat:lpagxjxstjbj5lcdumztlpgolu

Wavelet image and video coding on parallel architectures

M. Feil, R. Kutil, P. Meerwald, A. Uhl
ISPA 2001. Proceedings of the 2nd International Symposium on Image and Signal Processing and Analysis. In conjunction with 23rd International Conference on Information Technology Interfaces (IEEE Cat. No.01EX480)  
We discuss parallel algorithms for wavelet-based image and video coding.  ...  After reviewing fundamentals of the parallel discrete wavelet transform we cover the parallelization of two state-of-the-art compression schemes: a C++ 3-D SPIHT video codec and a JAVA JPEG-2000 implementation  ...  Section 3 discusses parallel algorithms for the fast wavelet transform and wavelet packet decompositions on MIMD architectures.  ... 
doi:10.1109/ispa.2001.938599 fatcat:3zevr5pyjzdztl247cpfyvl2v4

Computer vision algorithms on reconfigurable logic arrays

N.K. Ratha, A.K. Jain
1999 IEEE Transactions on Parallel and Distributed Systems  
Computer Vision Algorithms on Reconfigurable Logic Arrays By Nalini K.  ...  A new architecture for motion-compensated image compression is presented in 237]. Hamdi 86] presents parallel architectures for wavelet transforms.  ...  Ben-Tzvi et al. 21] describe an algorithm suitable for distributed memory MIMD architectures and have a c hieved a real-time performance on a custom-built MIMD machine.  ... 
doi:10.1109/71.744833 fatcat:htpcqypklnghvfdedyl7dneyhu

Low-memory packetized SPIHT image compression

F.W. Wheeler, W.A. Pearlman
Conference Record of the Thirty-Third Asilomar Conference on Signals, Systems, and Computers (Cat. No.CH37020)  
The bitstreams for each spatial block are assembled into a single final bitstream through one of two packetization schemes.  ...  The SPIHT image compression algorithm is modified for application to large images with limited processor memory.  ...  We applied both a full-image and independent spatial block SPIHT codec to a 2k column by 5k row pixel image. Note that this implementation is not heavily optimized.  ... 
doi:10.1109/acssc.1999.831896 fatcat:3jylxf4l65ahdgcg5utwoqffly

High-performance computing systems: Status and outlook

J. J. Dongarra, A. J. van der Steen
2012 Acta Numerica  
, which has been one of their most remarkable characteristics.  ...  We review the different ways devised to speed them up, both with regard to components and their architecture.  ...  system image although the memory is physically distributed.  ... 
doi:10.1017/s0962492912000050 fatcat:n6yodkox5zb6xmlep6gvayud2m

Comparison for Image Edge Detection Algorithms

Li Bin
2012 IOSR Journal of Computer Engineering  
Edge is the basic characteristic of image, edge detection plays an important role in computer vision and image analysis.  ...  The pretty usefull and identical information contained in edge of sub-image enable edge detection to be the main approach to image analysis and recognition.  ...  PROPOSED WORK A two layer Back Propagation neural network and the Wavelet decomposition algorithm were considered.  ... 
doi:10.9790/0661-0260104 fatcat:yaitwgmpg5djhbmek3ts3c7uzu

Nanophotonic Information System [chapter]

2016 Information Photonics  
tiling of FT, (b) time-frequency tiling of STFT, and (c) time-frequency tiling of DWT . . . . . . . . 234 6.9 Wavelet processing of image . . . . . . . . . . . . . . . . . . 238 6.10 2D wavelet decomposition  ...  . . . . . . . . . . . . . . . . 321 9.2 Schematic of MIMD architecture . . . . . . . . . . . . . . . 322 9.3 Schematic of a photonic computing architecture . . . . . . . 327 9.4 Schematic of an  ... 
doi:10.1201/9781315373072-20 fatcat:4cmzaf2bvjcsvjuisyxmtanboy

A genetic algorithm particle pairing technique for 3D velocity field extraction in holographic particle image velocimetry

J. Sheng, H. Meng
1998 Experiments in Fluids  
parallel architectures.  ...  In this paper, we introduce the principle of GAPP, analyze its performance under different parameters, and evaluate its processing speed on different computer architectures.  ...  images.  ... 
doi:10.1007/s003480050252 fatcat:fitblzierbbxjjolrwh54tfygi

Final Statements [chapter]

2009 FPGA-Based Implementation of Signal Processing Systems  
The authors would like to thank Richard Walke and John Gray for motivating a lot of the work at Queen's University Belfast on FPGA.  ...  Wavelets: wavelet decomposition has a range of signal processing applications, including image compression.  ...  Wavelet decomposition is a form of subband filtering and has many uses in DSP.  ... 
doi:10.1002/9780470713785.ch14 fatcat:b5uyg6k2qbhnncscazm2ickxki

Wavelet video coding with application in network streaming

Yufei Yuan
2005
The third architecture employs tem poral filtering as well as spatial decomposition. It is also called 3-D wavelet video coding.  ...  The new strategy a t the bottom provides another dimension of processing flexibility for an MIMD architecture.  ...  Since only the results for Girls are available for the CEZW , we compared the JPEG-2000 and the CW D R on the other two images.  ... 
doi:10.7939/r3-dtzj-gt53 fatcat:jyu2hsugb5df3g4sd3v7o2jpsq
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