The VGA example generates a 320x240 diffusion-limited-aggregation (DLA) on Altera DE2 board. A DLA is a clump formed by sticky particles adhering to an existing structure. In this design, we start with one pixel at the center of the screen and allow a random walker to bounce around the screen until it hits the pixel at the center. It then sticks and a new walker is started randomly at one of the 4 corners of the screen. The random number generators for x and y steps are XOR feedback shift registers (see also Hamblen, Appendix A). The VGA driver, PLL, and reset controller from the DE2 CDROM are necessary to compile this example. Note that you must push KEY0 to start the state machine.
标签： diffusion-limited-aggregation DLA generates 320x240
上传时间： 2014-01-16
上传用户：225588
M16C/6S 群是采用64 管脚的塑模LQFP 封装的单片机。该群将电力线通信调制解调器内核（利用了Yitran Communications Ltd公司开发的IT800PLC调制解调器技术）和模拟前端进行了单芯片化。M16C/60系列CPU内 核实现了高级别的编码效率和高速运算处理，而且，内置的IT800调制解调器内核还采用了Yitran公司的DCSK （Differential Code Shift Keying）扩频调制方式的专利技术，可在已有的电气配线上实现速度最大为7.5kbps的高 可靠性的通信。M16C/6S符合国际标准（FCC part 15, ARIB and CENELEC bands），最适合用于AMR（Automatic Meter Reading）或家庭自动化控制系统等各种窄带的应用程序。
标签： Communications Yitran LQFP 800
上传时间： 2014-08-08
上传用户：xaijhqx
DDR SDRAM控制器的VHDL源代码，含详细设计文档。 The DDR, DCM, and SelectI/O™ features in the Virtex™ -II architecture make it the perfect choice for implementing a controller of a Double Data Rate (DDR) SDRAM. The Digital Clock Manager (DCM) provides the required Delay Locked Loop (DLL), Digital Phase Shift (DPS), and Digital Frequency Synthesis (DFS) functions. This application note describes a controller design for a 16-bit DDR SDRAM. The application note and reference design are enhanced versions of XAPP200 targeted to the Virtex-II series of FPGAs. At a clock rate of 133 MHz, 16-bit data changes at both clock edges. The reference design is fully synthesizable and achieves 133 MHz performance with automatic place and route tools.
上传时间： 2014-11-01
上传用户：l254587896
韩国Yunjin Lee的博士论文，包含了她读博期间的主要研究成果，包括Mesh Scissoring: Contour-Based Segmentation，Mesh Parameterization Using Virtual Boundaries，Geometric Snakes for 3D Meshes，Mean Shift for 3D Meshes
上传时间： 2013-12-12
上传用户：netwolf
学位论文；运动物体跟踪方法主要包括卡尔曼滤波，Mean-shift，Camshifi算法，粒子滤波器，Snake模型等；应用卡尔曼滤波方法设计了一套煤矿矿工出入自动监测系统；提出了一种新的基于高斯混合模型的颜色特征提取方法，该方法克服了现有的Camshift算法Continuousl y Adaptive eanshift中跟踪目标特征提取精确度低和计算复杂度高的缺陷
上传时间： 2017-01-14
上传用户：JasonC
It can be argued that the current free-software movement is the most important thing happening in computing today. We are in the midst of a major shift from all software being proprietary and closely held by individual companies to a large body of software that can be freely acquired and used by anyone for any purpose. Free software now includes not only programming language compilers and linkers, but numerous utilities, graphical user interface environments, and even entire operating systems.
标签： free-software important happening the
上传时间： 2014-01-04
上传用户：aix008
cordic methods describe essentially the same algorithm that with suitably chosen inputs can be used to calculate a whole range of scientific functions including sin, cos, tan, arctan, arcsin, arccos, sinh, cosh, tanh, arctanh, log, exp, square root and even multiply and divide. the method dates back to volder [1959], and due to its versatility and compactness, it made possible the microcoding of the hp35 pocket scientific calculator in 1972. here is some code to illustrate the techniques. ive split the methods into three parts linear, circular and hyperbolic. in the hp35 microcode these would be unified into one function (for space reasons). because the linear mode can perform multiply and divide, you only need add/subtract and shift to complete the implementation. you can select in the code whether to do the multiples and divides also by cordic means. other multiplies and divides are all powers of 2 (these dont count). to eliminate these too, would involve ieee hackery.
标签： essentially algorithm describe suitably
上传时间： 2017-03-02
上传用户：litianchu
在Windows的资源管理器中选择文件时是不是觉得有一些麻烦，我们在DOS下使用拷贝命令时使用通配符可是非常方便的呀！而在资源管理器中选择多个文件时，我们必须使用鼠标配合Shift、Ctrl键来操作，非常麻烦，弄不好还得重来。
上传时间： 2013-12-23
上传用户：er1219
The double-density DWT is an improvement upon the critically sampled DWT with important additional properties: (1) It employs one scaling function and two distinct wavelets, which are designed to be offset from one another by one half, (2) The double-density DWT is overcomplete by a factor of two, and (3) It is nearly shift-invariant. In two dimensions, this transform outperforms the standard DWT in terms of denoising however, there is room for improvement because not all of the wavelets are directional. That is, although the double-density DWT utilizes more wavelets, some lack a dominant spatial orientation, which prevents them from being able to isolate those directions.
标签： double-density improvement additional critically
上传时间： 2017-04-03
上传用户：dongbaobao
PS/2键盘源码，可在各种单片机运行，可以实现大写和小写，利用shift键
上传时间： 2013-12-20
上传用户：com1com2
