给出了图象分形压缩映射存在性的一个构造性证明，并应用在图象编码中。
This paper presents an existent and constructive proof of image fractal compression mappings and application in fractal image coding.
图像分形压缩的原理是利用图像中的局部自相似性来构造局部迭代函数系统。
The principle of fractal image compression is that local self-similarity form a Local Iterated Function System.
分形压缩的本质是由于图像中存在高度的仿射冗余度，即图像中包含有许多自我参考物。
The genius of the fractal coding is the high redundancy degree. In other words, the image contains many self- frame of reference, which has many self- resemblanced parts.
实验结果表明，这一新的非线性分形压缩模型简单可行，并具有良好的压缩结果和高质量的重建图像。
The experimental results show that the new model is very simple and has better compression results and high quality rebuilding image.
本文首先分析图像分形压缩技术中传统加速方法的性能缺陷，随后提出使用图像块的熵值来改进分形压缩性能的思想。
The paper analyses the weakness of traditional speed-up techniques for image fractal compression firstly, and proposes a novel idea by using entropy to improve image fractal compress performance.
运用小波域及DCT域下的分形压缩图像方法，提高了编码速度，得到较高的压缩比和信噪比，但重构图像质量还存在块状效应。
Fractal Image-compressed is carried out after DWT or DCT to improve coding speed and get higher CR and PSNR, but quality of reconstructed-Image is not satisfactory.
本课题就是针对上述问题，通过小波变换和分形这两种方法来进行图像压缩，对比起压缩效果，总结出分别适合于小波和分形压缩的图像。
It USES wavelet and fractal to compress image and compare its compression result. Then sum-up what is fit for wavelet and fractal compression.
由于频域中dct系数的强相关性和分形的高压缩性能，能够实现视频数据的高压缩。
Due to high potential relativity of DCT coefficients and big compression performance of fractal, high compression rate of video data can be realized.
首先在第一章中介绍了分形图象压缩研究的意义和数字图象质量的评价标准。
The first chapter introduces the significance of fractal image compression research and the valuation standard of image quality.
分形几何方法是一种新的图像压缩编码方法。
Fractal geometry method is a new method of image compression coding.
本文通过介绍常见的图像压缩技术——哈夫曼编码和分形编码，提出了一些改进的方法。
This paper first introduces the common image compression technology-Huffman coding and fractal coding, and then proposes some improvements.
采用快速模拟退火算法来计算分形插值函数的关键参数——纵向比例因子，进一步加快了数据压缩的速度。
Fast simulated annealing is used in calculating the key parameter of fractal interpolation function - vertical scaling factor, thus makes further improvement of data compression speed.
分形编码在图像压缩方面取得了很好的效果，同时也能够用于基于内容的图像检索。
Fractal coding has been proved useful for image compression, and it is also proved effective for content-based image retrieval.
用花岗岩试件做了常规三轴压缩试验，对在不同围压作用下的岩石断裂表面进行了分形研究。
Conventional triaxial compression tests of granite were made and the fracture surfaces of samples tested under different confining pressures were studied by fractal analysis.
此外，还建立一个小型固定字典，用以加速分形图像的压缩编码。
In addition, a small fixed dictionary that is applied to speeding up fractal image compression coding is built.
采用多重分形改进算法提取往复压缩机振动信号的多重分形特征，得到了轴承故障的广义维数谱。
The multifractal features are extracted from the vibration signals of different spots on reciprocating compressor using the improving arithmetic, the general dimension spectrum of bearing.
为了提高二值图像的压缩比，采用自顶向下的编码方法，提出一种基于等腰直角三角形的分形图像压缩算法，并进行仿真实验。
In order to improve the ratio of binary image compression, using top-dowm method of coding, bring forward a fractal image compression method based on isosceles right triangle, and simulated.
本文讨论了图像压缩的分形几何方法，并提出了形成“智能型图像压缩系统”的设想。
This paper discusses the fractal geometry method of image compression. And it provides an assumption to form "Intelligent Image Compression System".
缩短分形块编码时间是进行分形图象压缩的关键问题之一。
Reducing fractal block coding time is one of the main problems of fractal image compression.
因此，一幅图像的分形编码就是寻找一个合适的压缩仿射变换，它的不动点是原始图像尽可能好的近似。
Thus, encoding an image by fractal techniques consists of finding an appropriate contractive transformation whose fixed point is the best possible approximation of the original image.
实验结果表明，固定压缩字典能快速地实现分形图像的编码，并具有部分分形图像的解码优点。
The experimental results show that the fixed compression dictionary can realize fractal image coding quickly and has some fractal image merit decoding.
本文介绍了分形几何和分形图像压缩的一些基本概念，以及以分形为基础的几种图像压缩编码方法。
This paper introduces some basic concepts of fractal geometry and fractal image compression, and also introduces some kinds of image compression coding method based on fractal.
本文首先研究了分形图象压缩编码和分形插值图象压缩方法。
In this paper, fractal image coding and fractal interpolation for image compression are studied at first.
本文利用分布并行计算系统来实现分形视频压缩算法的分布并行化。
In this paper we utilize parallel processing techniques to implement the fractal video compression algorithm to reduce the run time.
实验结果表明，固定压缩字典能快速地实现分形图像的编码，并具有部分分形图像的解码优点。
The experiment results show that the fixed compression dictionary can carry out fractional image coding rapidly and has some fractional image advantages in decoding.
实验结果表明，固定压缩字典能快速地实现分形图像的编码，并具有部分分形图像的解码优点。
The experiment results show that the fixed compression dictionary can carry out fractional image coding rapidly and has some fractional image advantages in decoding.
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