字符叠加芯片uPD6464及其在监视系统中的应用
首发时间:2010-04-27
摘要:在屏显示技术(OSD)就是将监控系统中采集的图像画面上叠加上文字显示,使屏幕显示为用户提供更多的附加信息:时间、变倍、聚焦说明等。本系统采用的uPD6464是NEC公司生产的编辑功能强的专用字符叠加芯片,结合简单的外围电路即可构成方便实用的字符叠加器。本论文简要介绍了uPD6464的性能,重点阐述了它在视频监控系统中的硬件设计和软件设计。
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Character Overlay Chip uPD6464 and its Application in Monitoring System
Abstract:On-screen display (OSD) control system is to capture the image on the screen superimposed on the text display, the screen display for the user many additional information: time, zoom, focus etc. The system uses the uPD6464 is produced by editing NEC special characters strong stacking chips, combined with simple external circuit can constitute a convenient and practical character Adder. This paper briefly describes uPD6464 performance, focusing on its video surveillance system in the hardware design and software design.
Keywords: OSD uPD6464 Character overlay
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No.4241448848912723****
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