目的嵌入式数字视频录像机(digital video recorder,DVR)系统中的多媒体(视频/音频)数据往往是电子数据司法鉴定领域的重要证据,然而在司法鉴定实践中,DVR被意外删除、恶意删除或遭受损坏导致DVR中数据无法访问的现象屡见不鲜,这无疑使...目的嵌入式数字视频录像机(digital video recorder,DVR)系统中的多媒体(视频/音频)数据往往是电子数据司法鉴定领域的重要证据,然而在司法鉴定实践中,DVR被意外删除、恶意删除或遭受损坏导致DVR中数据无法访问的现象屡见不鲜,这无疑使得电子数据鉴定过程变得更加困难。方法结合司法鉴定工作实务,主要以存储于Micro SD卡中无法访问的DVR视频文件为例,开展了基于文件分配表(file allocation table,FAT)32文件系统和H.264相关文件格式的DVR数据恢复研究。结果通过探讨的两种方法恢复的视频文件可以正常访问,同时还可通过运行脚本文件实现DBR的自动重建。结论探讨的两种方法可有效恢复FAT32文件系统的DVR数据和H.264格式的DVR数据。此外,通过运行脚本文件自动重构DBR,可有效提高司法鉴定效率。相关鉴定技术的研究对嵌入式DVR视频的鉴定技术研究具有重要的理论研究意义和实践应用价值。展开更多
Based on our research and data analysis, we have made an in-depth study of the elements that have had an impact on the archiving of those office records from the automated office management system. In addition, we als...Based on our research and data analysis, we have made an in-depth study of the elements that have had an impact on the archiving of those office records from the automated office management system. In addition, we also offered a few suggestions about archiving such electronic office records more efficiently and effectively from a holistic perspective. In this paper, these authors discussed at some length about the following issues which included but limited to the unique features and requirements about the offline record transmission, the online record archiving, the requirements of electronic archiving stemming from the automated office document generating system, how to make the electronic business management system more congenial to its task-specific requirements for business records management and how to protect the system users' interest during the process of the system's continuous evolutionary development.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.70773088)
文摘Based on our research and data analysis, we have made an in-depth study of the elements that have had an impact on the archiving of those office records from the automated office management system. In addition, we also offered a few suggestions about archiving such electronic office records more efficiently and effectively from a holistic perspective. In this paper, these authors discussed at some length about the following issues which included but limited to the unique features and requirements about the offline record transmission, the online record archiving, the requirements of electronic archiving stemming from the automated office document generating system, how to make the electronic business management system more congenial to its task-specific requirements for business records management and how to protect the system users' interest during the process of the system's continuous evolutionary development.
