基于FPGA的OSD信息的存取及优化
首发时间:2013-10-23
摘要:在完成十位数字跳变基础上,优化OSD信息模块在FPGA中的存储与读取。引入中文字符OSD信息对视频进行叠加,采取透明叠加模式。OSD信息主要储存在FPGA中,并与SRAM进行通信,通过对OSD信息写入SRAM和从SRAM中读取字符点阵信息的程序来完善OSD的功能和美化叠加效果。
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Access and optimization of OSD based on FPGA
Abstract:Based on jumping in ten digits, optimization of OSD module in FPGA storage and read. The Chinese character OSD information superimposed on the video, take a transparent overlay mode. OSD information is stored in the FPGA mostly, and communicates with theSRAM, through the OSD information into the SRAM, the program reads thecharacter dot matrix information from the SRAM to improve the function of OSD and beautify the superposition effect.
Keywords: OSD FPGA Video overlay
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