Wavelet packet zerotree image coding on multicomputers

Feil, Manfred; Uhl, Andreas

doi:10.1109/empdp.2002.994309

Cited by 7 publications

(7 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The remaining arithmetic operations involved in eqns. (2) and (7) are performed in the fourth clock cycle. If the proposed architecture is pipelined as shown in Fig.1, the logarithm value for any given series of integers can be obtained in every clock cycle with the delay of four clock cycles.…”

Section: Architecturementioning

confidence: 99%

“…The Best-Basis algorithm has gained importance because they outperform the most advanced wavelet coders and JPEG2000 compression significantly for the textured images in terms of rate-distortion analysis [2] such as famous test image "Barbara" and fingerprint images. Thus, the hardware realization of the wavelet packet based bestbasis algorithm attracts much attention.…”

Section: Introductionmentioning

confidence: 99%

“…This architecture does not discuss about the hardware implementation of the cost function to determine the cost of each wavelet packet and it performs the convolution based WPT. There are a few MIMD based architectures for the best-basis algorithm presented in [2] for images or 2D signals and [5] for ID signals.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Efficient Architecture for Entropy-Based Best-Basis Algorithm

Aroutchelvame¹,

Raahemifar²

2006

2006 International Conference on Image Processing

View full text Add to dashboard Cite

In this work, we propose an architecture for the waveletpacket based best-basis algorithm for images using Shannon Entropy as cost function. The algorithm for the logarithm implementation for integers using Taylor series is also proposed to implement Shannon entropy. The proposed architecture includes the architectures for the best-tree selection. The execution time of the proposed hardware for the best-basis algorithm for images is compared to its software implementation. The proposed best-basis architecture has been described in VHDL at the RTL level, simulated successfully for its functional correctness and implemented in an FPGA.

show abstract

Section: Architecturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Efficient Architecture for Entropy-Based Best-Basis Algorithm

Aroutchelvame¹,

Raahemifar²

2006

2006 International Conference on Image Processing

View full text Add to dashboard Cite

show abstract

“…Coifman and Wickerhauser [1] proposed Wavelet Packet Transform (WPT) based Best-Basis algorithm that selects the most suitable frequency subbands for signal or image compression by optimizing additive information cost functions. The Best-Basis algorithm have gained importance because they outperform the most advanced wavelet coders and JPEG2000 compression significantly for textured images in terms of rate-distortion analysis [2] such as famous test image "Barbara" and fingerprint images. Another important application of Best-Basis algorithm is denoising [3].…”

Section: Introductionmentioning

confidence: 99%

“…This architecture does not discuss about the hardware implementation of information cost function to determine the cost of each wavelet packet and it performs convolution based WPT. There are a few Multiple Instruction Multiple Data (MIMD) based architectures for best-basis algorithm presented in [2] for images or 2D signals and in [5] for 1D signals.…”

Section: Introductionmentioning

confidence: 99%

An Architecture Design of Threshold-Based Best-Basis Algorithm

Aroutchelvame¹,

Raahemifar²

2006

2006 IEEE International Conference on Multimedia and Expo

View full text Add to dashboard Cite

The best-basis algorithm has gained much importance on textured-based image compression and denoising of signals. In this paper, an architecture for the wavelet-packet based best-basis algorithm for images is proposed. The paper also describes the architecture for best-tree selection from 2D wavelet packet decomposition. The precision analysis of the proposed architecture is also discussed and the result shows that increase in the precision of input pixel greatly increases the Signal-to-Noise Ratio (SNR) per pixel whereas increase in the precision of filter coefficient does not greatly help in improving the SNR value. The proposed architecture is described in VHDL at the RTL level, simulated successfully for its functional correctness and implemented in an FPGA.

show abstract

High performance JPEG 2000 and MPEG-4 VTC on SMPs using OpenMP

Norcen¹,

Uhl²

2005

Parallel Computing

View full text Add to dashboard Cite

Wavelet packet zerotree image coding on multicomputers

Cited by 7 publications

References 16 publications

An Efficient Architecture for Entropy-Based Best-Basis Algorithm

An Efficient Architecture for Entropy-Based Best-Basis Algorithm

An Architecture Design of Threshold-Based Best-Basis Algorithm

High performance JPEG 2000 and MPEG-4 VTC on SMPs using OpenMP

Contact Info

Product

Resources

About