Results 231 to 240 of about 52,311 (259)
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Compression of Encrypted Images Using Set Partitioning In Hierarchical Trees Algorithm
AIP Conference Proceedings, 2011When it is desired to transmit redundant data over an insecure channel, it is customary to encrypt the data. For encrypted real world sources such as images, the use of Markova properties in the slepian‐wolf decoder does not work well for gray scale images. Here in this paper we propose a method of compression of an encrypted image.
G. Sarika +5 more
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Lossy/lossless region-of-interest image coding based on set partitioning in hierarchical trees
Proceedings 1998 International Conference on Image Processing. ICIP98 (Cat. No.98CB36269), 2002We have incorporated a region-of-interest (RoI) coding functionality into Said and Pearlman's (see IEEE. Trans. CSVT, vol.6, p.243-50, 1996) SPIHT coding with integer transforms. By placing a higher emphasis on the transform coefficients pertaining to the RoI, the RoI is coded with higher fidelity than the rest of the image in earlier stages of ...
Eiji Atsumi, Nariman Farvardin
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SPIE Proceedings, 2009
Modern automated microscopic imaging techniques such as high-content screening (HCS), high-throughput screening, 4D imaging, and multispectral imaging are capable of producing hundreds to thousands of images per experiment. For quick retrieval, fast transmission, and storage economy, these images should be saved in a compressed format.
Awais Mansoor +2 more
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Modern automated microscopic imaging techniques such as high-content screening (HCS), high-throughput screening, 4D imaging, and multispectral imaging are capable of producing hundreds to thousands of images per experiment. For quick retrieval, fast transmission, and storage economy, these images should be saved in a compressed format.
Awais Mansoor +2 more
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An improved ezw algorithm based on set partitioning in hierarchical trees using wavelet regularity
2004 International Conference on Image Processing, 2004. ICIP '04., 2005This paper presents an improved embedded zerotree wavelet (EZW) coding algorithm, which makes use of the wavelet regularity to derive a classification criterion of wavelet coefficients in spatial-orientation hierarchical trees. Variations of the EZW algorithm discussed in the open literature have proposed some modifications in the process of exploiting
Sergio R. M. Penedo, Rui Seara
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Signal Processing, 2006
Signal compression has been characterized as the removal of redundancy and irrelevancy. Fractional Fourier Transform (FRFT), an orthogonal, linear transform, is known to decompose the signal in terms of chirps. In this paper we propose a scheme for signal compression based on the combination of discrete FRFT (DFRFT) and set partitioning in hierarchical
C. Vijaya, J. S. Bhat
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Signal compression has been characterized as the removal of redundancy and irrelevancy. Fractional Fourier Transform (FRFT), an orthogonal, linear transform, is known to decompose the signal in terms of chirps. In this paper we propose a scheme for signal compression based on the combination of discrete FRFT (DFRFT) and set partitioning in hierarchical
C. Vijaya, J. S. Bhat
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Signal, Image and Video Processing, 2016
Biomedical signals enfold much crucial clinical information. Cardiac imperfection includes information on the morphology of its electrical signals. These signals are classically recorded over a considerable period, so the size of data file becomes bulky and hence compression is essential.
Supriya Rajankar, Sanjay N. Talbar
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Biomedical signals enfold much crucial clinical information. Cardiac imperfection includes information on the morphology of its electrical signals. These signals are classically recorded over a considerable period, so the size of data file becomes bulky and hence compression is essential.
Supriya Rajankar, Sanjay N. Talbar
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Performance of the color set partitioning in hierarchical tree scheme (CSPIHT) in video coding
Circuits, Systems, and Signal Processing, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kassim, A.A., Siong, L.W.
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A modified-set partitioning in hierarchical trees algorithm for real-time image compression
Journal of Communications Technology and Electronics, 2008Among all algorithms based on wavelet transform and zerotree quantization, Said and Pearlman’s set partitioning in hierarchical trees (SPIHT) algorithm is well known for its simplicity and efficiency. SPIHT’s high memory requirement is a major drawback to hardware implementation.
Akter, M +3 more
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Proceedings DCC '97. Data Compression Conference, 2002
The SPIHT (set partitioning in hierarchical trees) algorithm by Said and Pearlman (see IEEE Trans. on Circuits and Systems for Video Technology, no.6, p.243-250, 1996) is known to have produced some of the best results in still image coding. It is a fully embedded wavelet coding algorithm with precise rate control and low complexity.
Beong-Jo Kim, William A. Pearlman
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The SPIHT (set partitioning in hierarchical trees) algorithm by Said and Pearlman (see IEEE Trans. on Circuits and Systems for Video Technology, no.6, p.243-250, 1996) is known to have produced some of the best results in still image coding. It is a fully embedded wavelet coding algorithm with precise rate control and low complexity.
Beong-Jo Kim, William A. Pearlman
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Aplikasi Kompresi Citra Dengan Menerapkan Algoritma SPIHT (Set Partitioning In Hierarchical Trees)
Journal Global Technology Computer, 2021Seiring dengan berkembangnya teknologi digital saat ini,dengan banyaknya peralatan digital yang dapat ditemui dalam kehidupan sehari-hari seperti komputer,kamera digital ,handphone dan sebagainya. Dibandingkan dengan data teks,citra mempunyai karateristik tersendiri,yaitu citra merupakan data yang kaya dengan informasi.
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