基于ADV7125的目标发生器

A target gnerator bsed on ADV7125

针对目前光电测量领域相关指标检测的需求,研制了一种自定义生成各种目标图像的目标发生器。该目标发生器基于液晶显示器,以FPGA为控制核心,通过ADV7125驱动液晶显示屏。对目标发生器的硬件系统和软件系统进行了详细介绍,并对SVGA驱动,以及图像数据存取等核心环节进行了讨论。该目标发生器已成功应用于标准白场目标生成、对比度测试等光电测量领域。

To meet the needs of photoelectric measurements,we develop a kind of target generator for generating the required images.It is composed of liquid crystal display,FPGA and ADV7125 driver. Here both the hardware and software introduced in detail,and the SVGA driving,image data sampling are discussed.The generator has applied in the tests such as contrast and other photoelectric parameters.