Performance improvement of the SPIHT coder
The set partitioning in hierarchical trees (SPIHT) coder is one of the state-of-the-art coders among the wavelet-based image compression coders. For improving the performance of the SPIHT coder, in this paper, we propose a pre-processing method that applies the discrete sine transform or the discret...
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| Veröffentlicht in: | Signal processing. Image communication 2004, Vol.19 (1), p.29-36, Article 29 |
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| container_title | Signal processing. Image communication |
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| creator | Kim, Ki-Lyug Ra, Sung-Woong |
| description | The set partitioning in hierarchical trees (SPIHT) coder is one of the state-of-the-art coders among the wavelet-based image compression coders. For improving the performance of the SPIHT coder, in this paper, we propose a pre-processing method that applies the discrete sine transform or the discrete cosine transform to the wavelet coefficients in the highest frequency subbands and in the next highest frequency subbands before the SPIHT encoding. Experimental results show that the proposed method increases the peak signal to noise ratio by up to 0.4
(dB) in textured images over the original SPIHT coder. |
| doi_str_mv | 10.1016/j.image.2003.08.015 |
| format | Article |
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| ispartof | Signal processing. Image communication, 2004, Vol.19 (1), p.29-36, Article 29 |
| issn | 0923-5965 1879-2677 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Artificial intelligence Computer science control theory systems Discrete cosine transform Discrete sine transform Exact sciences and technology Image coding Image compression Image processing Information, signal and communications theory Pattern recognition. Digital image processing. Computational geometry Signal processing SPIHT Telecommunications and information theory Wavelet transform |
| title | Performance improvement of the SPIHT coder |
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