数码相机中基于OSD技术的图文显示解决方案  

A Method of Displaying Graphics & Text in Digital Camera Based OSD

作　　者：左广巍[1] 董朝霞[1] 

机构地区：[1]华中科技大学水电及数字化工程学院

出　　处：《微计算机信息》2004年第10期103-104,共2页Control & Automation

摘　　要：本文介绍了数码相机的系统结构与OSD模块的功能特点,着重论述了OSD模块的软件设计与多语言支持的实现,并说明了软件编写时需注意的几个问题。综合速度与移植性要求,在OSD软件模块采用分层设计,为上层应用程序提供了设备无关的图形函数接口,并能减少系统的时间开销。A typical architecture of digital camera and its OSD module were introduced in this paper. Especially, the design and implementation of the OSD's software was stated in detail. Supporting multi-language was discussed together with some other questions. Considering efficiency and maintenance, The OSD's software was implemented in two layers. Several device-independent APIs were exported by the OSD module with low overhead.

关 键 词：数码相机 在屏显示 嵌入式系统 图形界面 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]