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针对当前数字影像采集传输系统丢包率较大、纠错性能不好的问题,提出一种基于传感器采集和视频传输纠错编码的数字影像系统设计方法。进行数字影像系统的总体设计描述和功能模块分析,采用无线多媒体传感器网络技术进行数字影像的视频帧序列的采集,对采集的视频帧序列进行无损纠错编码设计,最后进行数字影像系统硬件设计和软件开发。系统测试分析结果表明,采用该数字影像系统进行视频采集和传输,有效降低了丢包率和传输延时,输出视频帧序列的质量较好,性能较好。
Aiming at the problem of large packet loss rate and bad error correction performance of current digital image acquisition and transmission system, a digital image system design method based on sensor acquisition and video transmission error correction coding is proposed. Carries on the overall design description and the function module analysis of the digital imaging system, uses the wireless multimedia sensor network technology to carry on the collection of the video frame sequence of the digital image, carries on the nondestructive error-correction coding design to the collected video frame sequence, finally carries on the digital image system hardware design and Software development The results of system test analysis show that using the digital video system for video capture and transmission, the packet loss rate and transmission delay are effectively reduced, the quality of the output video frame sequence is better and the performance is better.