基于NiosII处理器的视频字符叠加的设计与实现  

Design and Implemention of Overlapping Video Characters Based on Nios II Processor

作　　者：熊璟[1] 刘怡[2] 唐广[1] 黄自力[2] 

机构地区：[1]电子科技大学电子工程学院,四川成都610054 [2]西南技术物理研究所,四川成都610041

出　　处：《电视技术》2010年第10期36-38,共3页Video Engineering

摘　　要：实现了视频字符叠加模块,提出了几个在功能实现时应该注意的问题,其特点是可以在视频的任意位置叠加字符和图像,内容变动时容易修改。并且基于NiosII高性能、参数可配置、可移植、灵活性、实用性等特点,用NiosII来替代串口的功能,给FPGA发送指令或数据以控制图像显示并方便功能调试。The module of overlapping video characters is realized, and some problems are proposed which need to be noticed when the functions are realized. The design can overlap characters and pictures in any position of the video, and it is easy to modify charaeters and pictures when they change. Serial ports with Nios II could be replaced to send some commands or data to FPGA, in order to control the video display and debug the functions based on its high performance, eonfigurable parameters, transportability, flexibility and practicability.

关 键 词：NIOSII处理器 视频字符叠加 现场可编程门阵列 ROM 

分 类 号：TN941.1[电子电信—信号与信息处理]