Lifting factorization-based discrete wavelet transform architecture design

W Jiang, A Ortega - IEEE Transactions on Circuits and Systems …, 2001 - ieeexplore.ieee.org
In this paper, two new system architectures, overlap-state sequential and split-and-merge
parallel, are proposed based on a novel boundary postprocessing technique for the …

Three-dimensional discrete wavelet transform architectures

M Weeks, MA Bayoumi - IEEE Transactions on Signal …, 2002 - ieeexplore.ieee.org
The three-dimensional (3-D) discrete wavelet transform (DWT) suits compression
applications well, allowing for better compression on 3-D data as compared with two …

Algorithms and architectures for 2D discrete wavelet transform

A Shahbahrami - The Journal of Supercomputing, 2012 - Springer
Abstract The 2D Discrete Wavelet Transform (DWT) is an important function in many
multimedia applications, such as JPEG2000 and MPEG-4 standards, digital watermarking …

Distributed transforms for efficient data gathering in sensor networks

A Ortega, SK Narang, G Shen… - US Patent 8,855,011, 2014 - Google Patents
Devices, systems, and techniques for data collecting network Such as wireless sensors are
disclosed. A described technique includes detecting one or more remote nodes included in …

Design and analysis of static memory management policies for CC-NUMA multiprocessors

R Iyer, H Wang, LN Bhuyan - Journal of systems architecture, 2002 - Elsevier
In this paper, we characterize the performance of three existing memory management
techniques, namely, buddy, round-robin, and first-touch policies. With existing memory …

Implementing the 2-D wavelet transform on SIMD-enhanced general-purpose processors

A Shahbahrami, B Juurlink… - IEEE Transactions on …, 2007 - ieeexplore.ieee.org
The 2-D Discrete Wavelet Transform (DWT) consumes up to 68% of the JPEG2000
encoding time. In this paper, we develop efficient implementations of this important kernel on …

Discrete wavelet transform system architecture design using filterbank factorization

A Ortega, W Jiang - US Patent 6,757,343, 2004 - Google Patents
Techniques to overlap states for efficient multilevel wavelet decompositions to reduce
memory and delay in discrete wavelet transform in a block-by-block fashion. The input data …

Improving the memory behavior of vertical filtering in the discrete wavelet transform

A Shahbahrami, B Juurlink, S Vassiliadis - Proceedings of the 3rd …, 2006 - dl.acm.org
The discrete wavelet transform (DWT) is used in several image and video compression
standards, in particular JPEG2000. A 2D DWT consists of horizontal filtering along the rows …

A new scalable DSP architecture for system on chip (SoC) domains

MH Weiss, F Engel, GP Fettweis - 1999 IEEE International …, 1999 - ieeexplore.ieee.org
The ongoing advances in semiconductor technology are the enabler for complete system on
chip (SoC) solutions. In this SoC domain digital signal processors (DSPs) are employed to …

Performance evaluation of an SIMD architecture with a multi-bank vector memory unit

H Chang, J Cho, W Sung - 2006 IEEE Workshop on Signal …, 2006 - ieeexplore.ieee.org
The SIMD architecture is very efficient for multimedia data processing since it can handle
multiple data with a single instruction. In order to perform an SIMD operation, data must be …