摘要
提出了一种基于嵌入式技术的蛋鸡养殖场网络视频监控系统设计方案。在嵌入式终端上搭建Linux操作系统环境,并行处理视频和图像:通过H.264编码对基于V4L采集的视频进行压缩,并通过RTP/RTCP和UDP协议将视频传输到监控平台上进行解码和显示;同时采用Ohta阈值对帧拼接的图像进行二值化,获取距离图像,以鸡蛋半径为阈值再次进行二值化并对鸡蛋计数,通过OSD技术将鸡蛋总数叠加到视频上。现场试验表明,监控平台上实时显示的视频清晰,鸡蛋计数平均准确率为96.07%。
A network video surveillance system for laying hens farm was designed based on embedded technology.Linux operation system environment was built.Video and image were processed in parallel on embedded terminal： videos captured by V4L were coded based on H.264,transmitted to surveillance platform using RTP/RTCP and UDP,decoded and displayed on surveillance platform.An image from frames splice according to their contents was binarized by Ohta,converted into a distance image,binarized again with a threshold of egg radius to count eggs,and the total number was overprinted on video by OSD.Field experiment showed that videos were displayed real-timely and clearly and eggs were counted with an average accuracy of 96.07% on surveillance platform.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2012年第2期186-191,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金资助项目(31071565)
江苏省农机基金资助项目(GXZ10007)
