In detail, the host image is first divided into non-overlapping range blocks of fixed size, which are encoded by fractal coding ( using orthogonal fractal coding method). 具体说,把宿主图像分成大小相同的不重叠的子块,对这些子块进行分形编码(采用正交分形编码方法)。
These problems are the range of using GAs, coding, setting of parameters and the operators of GAs, such as selection, crossover, mutation and others. 第三章介绍了在实现遗传算法时要解决的几个重要问题,包括遗传算法的使用范围,编码,参数设置,遗传操作的选择、交叉、变异和其他的一些算子。
Because the resources are allocated among several cell range, distributed coding structure also can improve the resource alloc success probability of the users in heavy cell. 由于可以在多个小区范围内分配资源,分布式编码结构也能提高在繁忙小区用户的资源分配成功率。
The quantization part adopts the local search method, adjust the restoring image quality by adjusting the range, in order to increase the coding speed and restore the image quality. 量化部分采用了局部搜索法,通过调整局部搜索的范围来调整恢复图像的质量,达到编码速度和恢复图像质量的目的。
Long-range Acoustic Communication through Time Delay Coding 用时延编码实现远程水声通信
We therefore define a symbol to be a certain range of possible waveform values, rather than a single value, and develop a coding scheme on this basis. 基于这种原因,本文用一个符号表示一定范围内波形数据,而不是单个波形数据,然后在此基础上设计了一种编码方案。
The algorithm of extended range analysis of linear programming, its coding and debug-ging are presented. 本文介绍了线性规划扩充灵敏度分析的算法、程序的设计和编制以及调试。
In new adjuster the range of quantization step has been limited well and coding error has been removed in single or some little frames. 在新的调节器中,限制了量化步长(Q)的范围,消除单个或者少数几帧产生的编码误差。
The effective range within 10km. Phase lock oscillator, address coding and intermission mode are taken to stabilize the system and to promise the target's working period longer than 10 days after its source charged. 系统中采用了锁相技术和地址编码,并采用间隙工作方式,使得本系统工作性能稳定,目标源一次充电可连续工作10天以上。
Range Based Fractal Image Coding 基于区域的分形图像编码
Taking the Brownian dimension as their texture feature, image blocks were clustered and sorted, to control the number of domain blocks to be compared with each range block in coding. 以图像的布朗维数为纹理特征对编码中的图像块进行聚类和排序,实现了对每个值域块所需比较定义域块数目的精确控制。
According to the characteristics that limited dynamic range of images taken in dense fog, dynamic range stretch as a global enhancement method is used. In order to reduce the effect of noise it brings, sparse coding is adopted. 大雾天气下的图像由于其本身灰度范围有限的特点,采用动态范围拉伸的方法进行全局增强,并对其增强后出现的噪声干扰问题利用稀疏编码技术给予解决。
This paper presents a fractal range based image coding approach which is developed from block based ones. 本文在分形方块图像编码的基础上,提出了一种区域分形编码方法。
In order to overcome the shortcoming, it is difficult to find the most similar domain block for texture abundance range block in the quadtree fractal coding, a hybrid image coding method based on the quadtree fractal is proposed in the paper. 为克服四叉树分形编码中纹理信息丰富的图像块较难找到满足要求相似块的不足,在四叉树分形图像编码的基础上,提出了一种与BTC方法结合的混合分形编码方法。
Genetic algorithm with adjusted range coding method for economic load dispatch 负荷经济调度的可变区间编码遗传算法研究
However, finding a close match between a range block and a large pool of domain blocks in fractal image block coding is quite time-consumptive. 在分形图像编码中,由于值块与域块的匹配搜索计算量很大,导致分形编码速度较慢,不能适应图像实时传输的场合。
With the mean of range block, the compression ratio is improved, the coding time and reconstruction time are decreased. 采用值域块均值作为分形编码的参数可加快分形编码的速度,提高压缩比和加快分形图像压缩解码的收敛速度。
The relationship between the range of selected colors for color coding and the size of targets was investigated on a LCD under lower ambient illumination with3100K color temperature. 采用一台有源矩阵彩色液晶显示器作为主要实验装置,对低色温、低强度背景光照射下液晶显示颜色编码范围及其与色标大小的关系进行了研究。
Identification of Radar Target Range Profile by Using Characteristic Coding and Multiple Modelled Matching 雷达目标距离剖面图像的特征编码与多模匹配识别
Simultaneous masking which is an important research content of psychoacoustic, have a wide range of applications in audio coding, speech enhancement and so on. 同时掩蔽是心理声学的重要研究内容,在音频压缩编码、语音增强等方面有着广泛的应用。