基于Winhex的SONY MP4视频图像碎片重组技术在刑事案件中的应用  

Application of SONY MP4 Video Image Fragmentation Technology Based on Winhex in Criminal Cases

作　　者：李东慧 赵智臻 LI Donghui;ZHAO Zhizhen(Beijing Tongda Fazheng Forensic Appraisal Center,Audio-Visual Data Appraisal Laboratory,Beijing 100071)

机构地区：[1]北京通达法正司法鉴定中心声像资料鉴定实验室,北京100071

出　　处：《软件》2022年第9期114-119,共6页Software

摘　　要：SONY MP4视频文件由于其不连续存储的特性,在存储介质损坏、病毒破坏、删除、格式化等操作下,视频文件会形成大量的视频流碎片。在刑事案件中,由于案件证据固定和侦查的时效性要求较高,往往需要现场及时提取恢复,针对SONY MP4视频文件碎片大小不统一,一般需要先分析碎片大小及特征,再编写程序进行提取重组,相对比较耗时。本文基于Winhex编写脚本,利用脚本的批处理特性,主要从其文件底层存储的特性和规则,对视频文件碎片进行提取和重组,相对灵活,方便快捷,可以提高在刑事案件应用中的时效性。Due to its discontinuous storage characteristics,SONY MP4 video files will form a large number of video stream fragments under the operation of storage medium damage,virus damage,deletion,formatting,etc.In criminal cases,due to the high requirements for the fixation of case evidence and the timeliness of investigation,it is often necessary to extract and restore the scene in time.Since the fragment size of SONY MP4 video files is not uniform,it is generally necessary to analyze the size and characteristics of the fragments first,and then write a program to extract and reorganize,which is relatively time-consuming.This article is based on Winhex to write a script,using the batch processing feature of the script,mainly from the characteristics and rules of the underlying storage of the file,to extract and reorganize the video file fragments,which is relatively flexible,convenient and fast.It can improve the timeliness in the application of criminal cases.

关 键 词：Winhex脚本 SONY MP4 视频图像 文件碎片 

分 类 号：TP309.3[自动化与计算机技术—计算机系统结构]