摘要
针对视频图像数据实时存储过程中普遍存在的丢帧问题,通过深入分析典型的存储算法,找出实时存储过程中视频图像数据丢失的原因:计算机在连续存储相同大小的文件时,存储速度在一定的范围内波动.本文采用队列式缓存结构有效地消除了存储速度波动所带来的影响,保证了在数据流速小于磁盘平均存储速度的前提下,高速视频图像数据的实时存储,解决了丢帧问题.实践验证了该算法的可行性与可靠性.
Aimed at the ubiquitous problem of losing frame in the course of video image real-time storing, the typical storage arithmetic has been analyzed thoroughly in this paper. Then, the cause of losing video image in the process of real-time storing was found. When the same size files were saved continuously to the disk of the computer,the storage rate was fluctuant in stated range. Through adopting the queue buffer structure, the influence of the storage rate fluctuating was avoided effectively; consequently the real-time storage of high-speed video image was ensured in the condition that the rate of data flow is less than the mean rate of storage. Finally the problem of losing frame was solved. By experiment, the feasibility and reliability of the arithmetic was proved.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2006年第9期1431-1434,共4页
Acta Photonica Sinica
