A Parallel Architecture for the 2-D Discrete Wavelet Transform with Integer Lifting Scheme
Journal of VLSI Signal Processing Systems - Parallel VLSI architectures for image and video processing
An efficient architecture for lifting-based two-dimensional discrete wavelet transforms
Proceedings of the 14th ACM Great Lakes symposium on VLSI
A VLSI architecture for lifting-based forward and inverse wavelettransform
IEEE Transactions on Signal Processing
Line-based, reduced memory, wavelet image compression
IEEE Transactions on Image Processing
An efficient architecture for two-dimensional discrete wavelet transform
IEEE Transactions on Circuits and Systems for Video Technology
Lifting factorization-based discrete wavelet transform architecture design
IEEE Transactions on Circuits and Systems for Video Technology
Evaluation of design alternatives for the 2-D-discrete wavelet transform
IEEE Transactions on Circuits and Systems for Video Technology
Efficient FPGA implementation of DWT and modified SPIHT for lossless image compression
Journal of Systems Architecture: the EUROMICRO Journal
Efficient hardware architecture of 2D-scan-based wavelet watermarking for image and video
Computer Standards & Interfaces
High speed VLSI implementation of lifting based DWT
Proceedings of the International Conference on Advances in Computing, Communications and Informatics
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An architecture for the lifting-based two-dimensional discrete wavelet transform is presented. The architecture has regular data flow and low control complexity, and achieves 100% hardware utilization. It is easily adapted to arbitrary image sizes, multiple levels of transform, and different numbers of lifting steps. Symmetric extension of the image to be transformed is handled in a way that does not require additional computations or clock cycles. The proposed architecture achieves higher throughput and uses 30% fewer lines of embedded memory than architectures based on convolutional filter banks. The architecture has been implemented on an Altera APEX20KE field programmable gate array for three differently quantized versions of the biorthogonal 9/7 filter set used for JPEG2000 lossy compression. Our best implementation of a one-level two-dimensional discrete wavelet transform achieves a throughput of 66.8 megapixels per second using 7726 logic elements.