刑事技术2025，Vol.50Issue(5)：482-488,7.DOI:10.16467/j.1008-3650.2024.0075
基于元数据的手机截图图像溯源技术研究
Forensic Authentication of Smartphone Screenshots Based on Metadata Tracing
摘要
Abstract
Currently,smartphone screenshot images,as a swift and convenient tool for capturing and sharing information,have found widespread applications in daily life and professional work.However,simultaneously,the associated security and privacy concerns regarding these images have become increasingly salient.Due to the significant differences in their generation mechanisms between smartphone screenshots and captured images,this fact poses challenges for screenshot image traceability and forensics.In the current research and practical applications,technical research on tracing the sources of screenshot images remains in its nascent stage,with accurate tracing and identifying the source devices of specific images emerging as a pivotal research topic in the field of digital image forensics.This study focuses on developing a recognition methodology and system based on metadata features.By collecting screenshot samples from 52 smartphones of prevalent mobile phone brands in the market,metadata is extracted from the sample images,and a metadata feature database is subsequently established.The source device of the image is matched and identified by comparing multi-dimensional features,including model,device manufacturer,profile creator,rotation angle,file type,image width,and image height.Experimental results demonstrate that the proposed method exhibits high accuracy and reliability in identifying the origins of images for traceability purposes,thereby offering a novel technical approach for the field of digital forensics.关键词
数字取证/司法鉴定/溯源鉴定/元数据/手机屏幕截图Key words
digital forensics/judicial appraisal/traceability identification/metadata/smartphone screenshot分类
社会科学引用本文复制引用
杨梦暄,李胜男,邱秀莲,曾锦华..基于元数据的手机截图图像溯源技术研究[J].刑事技术,2025,50(5):482-488,7.基金项目
上海市"科技创新行动计划"技术标准项目(21DZ2200100) （21DZ2200100）
中央级公益性科研院所基本科研业务费资金项目(GY2024G-6) （GY2024G-6）
