摘要
为便于在执行探空火箭科学试验中实时监测有效载荷的工作状态和试验对象的变化过程,设计了一种以JPEG2000标准压缩芯片ADV212为核心的图像压缩系统;利用该芯片的压缩功能对前端摄像头采集到的视频图像进行有效压缩,压缩数据经发射机传至地面遥测站,由专用图像解压软件完成解压还原,实现地面实时监测;测试结果表明,该系统可将原始图像码流速率由165.9Mbps降至200kbps以下,系统整体功耗仅有1.65W,摄像头可三路轮流切换,能够实现多角度原位观测。
In order to monitor the working state of payloads and the changing process of test objects during the sounding rocket mission, an image compression system with JPEG2000 standard image procession chip ADV212 is developed. ADV212 can compress the image cap tured by cameras. Compressed data is transported to the telemetry station through the transmitter. Monitoring function can be achieved in conjunction with the image decompression software. Test results show that, the original image stream rate can be reduced from 165. 9Mbps to 200kbns, overall Dower consumntion is onlv 1. 65;SW, cameras can he switched in channels.
出处
《计算机测量与控制》
北大核心
2013年第11期3063-3065,共3页
Computer Measurement &Control
基金
国家863计划(2011AA7033045)
