kongjianpinghua

摘　要 文章以空间监控系统为背景,深入研究了JPEG图像压缩标准的实现方法,并基于FPGA对其进行了实现和优化。文中给出了详细的实现方法和优化过程,测试表明达到了很好的效果。 简单介绍了有损静态图像压缩当前有两种比较流行的标准JPEG和JPEG2000。说明了用JPEG方法压缩的原因。 介绍JPEG基本原理：JPEG对灰度图像的压缩处理过程主要包括:图像分割,离散余弦变换(DCT),量化(Quantization),“Z”形排序(Zigzag Scan),差分脉冲编码调制(Differential Pulse Code Modulation,DPCM)对直流系数(DC),行程长度编码(Run-Length Encoding,RLE)对交流系数(AC),霍夫曼(Huffman)编码等。 JPEG标准的特点是离散余弦变换。 比较详细介绍压缩系统的构成和实现。实现提及步骤， JPEG压缩模块设计和编码模块实现细节。 (Abstract Article in the space monitoring system for the background, in-depth study of the JPEG image compression standard implementation methods and carried out based on FPGA implementation and optimization. In this paper, a detailed method of implementation and optimization of the process, testing showed that to achieve good results. Easy introduction of harmful static image compression has two kinds of comparisons that the current popular standard JPEG and JPEG2000. Illustrated by the reasons for JPEG compression method. JPEG introduce the basic principles: JPEG compression of gray-scale image processing include: image segmentation, discrete cosine transform (DCT), quantization (Quantization), "Z"-shaped sort (Zigzag Scan), differential pulse code modulation (Differential Pulse Code Modulation, DPCM) on the DC coefficient (DC), Run Length Encoding (Run-Length Encoding, RLE) of the exchange coefficient (AC), Hoffman (Huffman) coding. JPEG standard is characterized by discrete )

说明：  遗传算法工具箱formatlab的说明，版本1.2(Genetic Algorithm Toolbox for MATLAB, v1.2)

说明：  人脸定位的MATLAB源程序，希望对做图象处理的同志有帮助。(Face positioning MATLAB source, and I hope to do the image processing to help comrades.)

自己编的matlab程序，可以统计深海多金属结核的覆盖率。(Own matlab program, you can count the deep sea polymetallic nodules coverage.)

to make a simulation of motors

说明：  rpca程序代码，是朋友做的，希望对大家的学习和生活能有所帮助，谢谢大家(RPCA program code, is a friend to do, and I hope that everyone's learning and life can help, thank you.)

说明：  准椭圆函数交叉耦合滤波器耦合系数的提取程序。利用matlab遗传算法和solvopt算法工具包。不懂使用方法可以加我qq13319810(Cross-coupled quasi-elliptic function filter coupling coefficient of extraction procedures. The use of genetic algorithms and matlab toolkit solvopt algorithm)

用Matlab实现学生综合成绩评定的模糊推理，pdf论文，适合计算智能学者参考。进一步理解模糊逻辑(Grading students with Matlab fuzzy inference pdf papers for Computational Intelligence scholars reference. Further understand fuzzy logic)

GAMIT软件在卫星观测数据处理领域应用广泛，计算的结果也很精确，对于需要误差项精确计算值得程序开发人员和科学研究人员有很大的帮助，此文档主要介绍GAMIT软件的使用，比较容易上手(GAMIT software in satellite observation data processing field applications, the results of the calculation are very accurate, the need for the error term is precise calculation program development personnel and scientific researchers are of great help, the document GAMIT mainly introduces the application of the software, is easy to use )

Power factor correction for PSAT