摘要
基于SONY的ICX229AK PAL制CCD芯片组,设计了具有VGA接口的一体化摄像机。采用DSP+FPGA+ASIC的构架,完成了视频信号的采集和显示。在FPGA中实现了自动聚焦、自动光圈等关键技术,并扩展了新型的如4副图像存储、鼠标驱动及划线、实时图像与存储图像同屏对比、OSD显示等实用功能。通过PW1226将帧率提升到60帧/秒,并对图像进行放大,最终完成了PAL制数字视频信号到VGA格式的转换,分辨率为1024*768。实现了复合视频、S-VIDEO和VGA三种视频信号的同时输出。可用于视频展台及实时监控等方面,大大提高了输出图像的质量。
An integrated monitoring system with a VGA interface is designed based on the SONY ICX229AK PAL CCE chipset,in which the acquisition and display of the video signals are achieved through DSP＋FPGA＋ASIC structure.Some key technologies such as auto-focus and auto iris are achieved and such functions as four-picture storage,mouse driver and lining,on-screen contrast of real-time pictures and stored pictures and OSD display are expanded in FPGA.Through PW1226,the frame rate is improved to 60 frames per second and pictures are enlarged,realizing the conversion from PAL digital video signals to VGA format,with the resolution of 1024＊768.The simultaneous output of composite video,S-VEDIO and VGA signals is achieved.The system may be used in audio booths and real-time monitoring,and the quality of the pictures is greatly improved.
出处
《山西科技》
2010年第3期61-63,共3页
Shanxi Science and Technology
