This paper presents the compression mechanism based on the fractal coding and spiral architecture for the color image data of multimedia applications or system. This compression mechanism can be used prior to the encryption in multimedia system security mechanism. Proposed mechanism falls in lossy compression category. Basically, the fractal coding is applied on the grey level images and encodi...

The proposed approach (CICMFCSA), firstly, compose the one-plane image using the pixel’s trichromatic coefficients. One-plane image in traditional square structure is represented in Spiral Architecture for compression. On this Spiral Architecture image, proposed modified Fractal grey level image coding algorithm (MFCSA) is applied to get encoded image. In this modified Fractal coding, the numbe...

Fractal image compression is a class of image compression techniques that offer the advantages of high compression ratio and fast decoding. But the major obstacle of these techniques is the relatively long time needed for encoding the image due to the requirement of search for the best fitting domain block for each range block. Various methods have been suggested to overcome this problem withou...

Most information retrieval systems make indirect use of human knowledge in their retrieval process. The novel systems presented here uses the human knowledge directly to retrieve the soccer events. The proposed system is an extended method in three aspects as follows: in the query model, the query by example and query by keywords are applied to retrieve the semantics. In feature extraction, we ...

A new compact scheme, which outperforms in many cases quad-tree decomposition, for coding of digital images is proposed and analyzed. It is based on a suitable generalization of function-trees, introduced in [1]. In particular a new top-down approach to build functiontrees both for binary pictures and gray level images is presented. The proposed coding scheme can be adapted to compress digital ...

In this paper, we present a method that allows novice users to interactively create partially self-similar manifold surfaces without relying on shape grammars or fractal methods. Moreover, the surfaces created using our method are connected. The modelers that are based on traditional fractal methods or shape grammars usually create disconnected surfaces and restrict the creative freedom of user...

Recently, fractal and subband coding were combined to achieve good picture quality at very low bit rates, and the technique was named predictive pyramid coding (PPC) [5]. In this paper, we improve PPC performance by utilizing the inter-subband correlation between different groups of subbands. As a result, we can reduce the bit rate by 0.0110.043 bpp without degrading the coded picture quality,...

We propose a novel visualisation method for DNA and other long sequences over a small alphabet, which is based on the construction of the family of Rauzy fractals for infinite words. We use this technique to find repeating structures of widely varying length in the input string as well as the identification of coding segments. Other properties of the input can also come to light using this tech...

Compression of the color images and videos has many applications in most of the mobile technologies. Reducing the time taken for file transfer is important in digital communication fields. Image compression means reducing the graphics file size, without degrading the quality of the image. For digital images, Fractal image Compression (FIC) and run length coding has been considered as an efficie...