目的 建立硬盘录像视频的恢复方法。方法 运用关键字搜索法从底层数据中确定文件头、尾标志,进而恢复出视频文件。结果 运用关键字搜索法能够成功地进行硬盘录像的底层数据恢复。结论 关键字搜索法是行之有效的硬盘录像底层数据的恢复方法。

Objective To establish a method for recovering DVR video file.Methods The documents head, tail sign were determined by keyword search method first, and then the underlying data of video files was recovered.Results The underlying data of the DVR video file was recovered successfully.Conclusion The keyword search method is effective in the underlying data recovery of DVR video file.