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In this paper, an efficient VLSI architecture of JPEG2000 encoder is given. The proposed architecture functionally consists of three main parts: discrete wavelet transform (DWT), block encoder (i.e., known as embedded block coding with optimized truncation (EBCOT), which is combined with bitplane coder, MQ coder and rate-distortion (RD) truncation) and memory management unit (MMU). For DWT, high-performance...
In this paper, a memory-efficient and high-throughput VLSI architecture, which functionally includes discrete wavelet transform (DWT) and entropy coder (EC), is presented for JPEG2000 implementation. The proposed architecture is made up of line-based DWT using lifting scheme combined with the EC architecture performed in a bit plane parallel coding way. Based on this, an efficient memory strategy...
A compression algorithm based on partial SPIHT with classified weighted rate-distortion optimization and adaptive coding depth control is proposed. The different significance weights are initially given to every coding passes in each zero tree, according to the category of interferential regions and the significance of coding bitplanes. Then we determine the coding depth of each zero tree by significance...
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