A. E. Jacquin, "A novel fractal based block-coding technique for digital images," in Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing ICASSP'90, vol. 4, pp. 2225--2228, 1990.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....mainly exploit the long range correlations within the signal. The basic idea for encoding of images using fractal techniques has been reported by Barnsley [1, 2, 3] A first practical implementation capable of encoding grey scale images at common compression ratios has been proposed by Jacquin [4, 5, 6]. Some improvements and modifications, e.g. 7, 8, 9, 10, 11] have been published, but the underlying concept of blockwise approximation of the image by parts of itself is still the same. A review on fractal image coding may be found in [12] A signal is denoted self similar if all its parts ....

A. E. Jacquin, "A novel fractal based block-coding technique for digital images," in Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing ICASSP'90, vol. 4, pp. 2225--2228, 1990.

....as fractal coding. The basic idea for encoding of signals by use of fractal techniques is originated in various publications of Barnsley et al., e.g. 1, 2, 3] A first implementation of an automatic encoding routine for gray scale images at common compression ratios has been proposed by Jacquin [4, 5, 6]. A review on fractal image coding may be found in [7] and an excellent mathematical foundation of fractal signal modeling is contained in [8] Recently some improvements and modifications have been published, e.g. 9, 10, 11, 12, 13] which made the fractal technique a challenging candidate for ....

A. E. Jacquin, "A novel fractal based block-coding technique for digital images," in Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing ICASSP'90, vol. 4, pp. 2225--2228, 1990.

....SPIE VisCom 93, Nov. 93, Boston, MA, USA The fractal coding concept originates from Barnsley s idea to exploit self similar structures in real world images for compression purposes [4] A first practical implementation also capable of encoding grey scale images has been proposed by Jacquin [5, 6]. Several improvements and modifications e.g. 7, 8, 9, 10, 11, 12] have been reported since then, but the basic concept of blockwise approximation of the entire image by parts of itself remained the same. For a given image the encoding process consists of finding among a class of a priori defined ....

....coding scheme is depicted in figure 2. In order to exclude the influence of various motion estimation schemes we skipped this part and instead we performed a simple prediction by providing a frame store. Encoding of the foreground image is performed in accordance with Jacquin s original proposal [5] for still image coding, except for two major modifications: Firstly a fast hierarchical codebook search which strongly increases encoding speed and nearly yields full search performance in terms of reconstruction quality is employed. A detailed description can be found in [12] Secondly, instead ....

A. E. Jacquin, "A novel fractal based block-coding technique for digital images," in Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing ICASSP'90, vol. 4, pp. 2225--2228, 1990.

....approach has attracted some degree of interest in the last years. Most common block oriented coding techniques usually revolve around transform coding, e.g. 2] and vector quantization, e.g. 3] The fractal coding concept, originally proposed by Barnsley [4] and at first implemented by Jacquin [5, 6, 7], is based on a blockwise approximation of the original image by contraction mappings of itself using affine transformations. For a given image the encoding process consists of finding among a class of a priori defined contractive transformations one which leaves this image approximately ....

A. E. Jacquin. A novel fractal based block-coding technique for digital images. In Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing ICASSP'90, volume 4, pages 2225--2228, 1990.

....can be approximated by transforming another part of that same image by some affine spacial transformation and a (usually linear) brightness transformation. Based on the theory of fractals, for a given image S, the compression process tries to find a Partitioned Iterated Function System (PIFS) [1], W = w i : i = 1, k , whose attractor is a non overlapping tiling of the image, where each of the tiles is formed by applying a contractive affine transformation w i on a section of S. SWS wd ii i k = 1 U , where d is an arbitrary section of the image, called domain. The ....

A. E. Jacquin, "A novel fractal based block-coding technique for digital images", Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing ICASSP'90, 4, 2225-2228 (1990)

....SPIE VisCom 93, Nov. 93, Boston, MA, USA The fractal coding concept originates from Barnsley s idea to exploit self similar structures in real world images for compression purposes [4] A first practical implementation also capable of encoding grey scale images has been proposed by Jacquin [5, 6]. Several improvements and modifications e.g. 7, 8, 9, 10, 11, 12] have been reported since then, but the basic concept of blockwise approximation of the entire image by parts of itself remained the same. For a given image the encoding process consists of finding among a class of a priori defined ....

....coding scheme is depicted in figure 2. In order to exclude the influence of various motion estimation schemes we skipped this part and instead we performed a simple prediction by providing a frame store. Encoding of the foreground image is performed in accordance with Jacquin s original proposal [5] for still image coding, except for two major modifications: Firstly a fast hierarchical codebook search which strongly increases encoding speed and nearly yields full search performance in terms of reconstruction quality is employed. A detailed description can be found in [12] Secondly, instead ....

A. E. Jacquin, "A novel fractal based block-coding technique for digital images," in Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing ICASSP'90, vol. 4, pp. 2225--2228, 1990.

....approach has attracted some degree of interest in the last years. Most common block oriented coding techniques usually revolve around transform coding, e.g. 2] and vector quantization, e.g. 3] The fractal coding concept, originally proposed by Barnsley [4] and at first implemented by Jacquin [5, 6, 7], is based on a blockwise approximation of the original image by contraction mappings of itself using affine transformations. For a given image the encoding process consists of finding among a class of a priori defined contractive transformations one which leaves this image approximately ....

A. E. Jacquin. A novel fractal based block-coding technique for digital images. In Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing ICASSP'90, volume 4, pages 2225--2228, 1990.

....as fractal coding. The basic idea for encoding of signals by use of fractal techniques is originated in various publications of Barnsley et al., e.g. 1, 2, 3] A first implementation of an automatic encoding routine for gray scale images at common compression ratios has been proposed by Jacquin [4, 5, 6]. A review on fractal image coding may be found in [7] and an excellent mathematical foundation of fractal signal modeling is contained in [8] Recently some improvements and modifications have been published, e.g. 9, 10, 11, 12, 13] which made the fractal technique a challenging candidate for ....

A. E. Jacquin, "A novel fractal based block-coding technique for digital images," in Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing ICASSP'90, vol. 4, pp. 2225--2228, 1990.

....mainly exploit the long range correlations within the signal. The basic idea for encoding of images using fractal techniques has been reported by Barnsley [1, 2, 3] A first practical implementation capable of encoding grey scale images at common compression ratios has been proposed by Jacquin [4, 5, 6]. Some improvements and modifications, e.g. 7, 8, 9, 10, 11] have been published, but the underlying concept of blockwise approximation of the image by parts of itself is still the same. A review on fractal image coding may be found in [12] A signal x is denoted self similar if all its parts ....

A. E. Jacquin, "A novel fractal based block-coding technique for digital images," in Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing ICASSP'90, vol. 4, pp. 2225--2228, 1990.

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