author : shiyanling tutor : guoshengquan, nieming the image encoding and code joint functions are accomplished in this dissertation on the basis of the whole demonstration of the infrared virtual keyboard 本论文在对红外虚拟键盘进行整体设计论证的基础上,实现了图像编码和码字拼接等功能。
in the software design part, the image encoding is realized with huffman encoding on the bubbling up sorting method for 256 gray-color values . the result of the encoding and encoding efficiency are displayed in the list box . in the hardware design part, on the basis of the characteristic and development of the embedded system hardware, the code joint is realized with the fpga and vhdl 在红外虚拟键盘的软件实现部分,采用哈夫曼(huffman)编码的方法实现了图像编码,利用冒泡法对256个灰度值进行排序,最后将编码结果以及编码效率等以列表框的形式显示;在硬件设计部分,基于目前嵌入式系统硬件的特点及发展,采用可在线修改的现场可编程门阵列fpga(fieldprogrammablegatesarray)技术以及高速集成电路硬件描述语言vhdl(veryhighspeedintegratedcircuitshardwaredescriptionlanguage)等方法实现图像处理中的码字拼接功能。