{"title":"CSM In Motion Vector Steganalysis: The Effect of Coders on Motion Vectors in H.264 Video Encoding","authors":"Verena Lachner, K. Schaar, Ralf Zimmermann","doi":"10.1109/ICASSP49357.2023.10096323","DOIUrl":null,"url":null,"abstract":"Cover-Source Mismatch (CSM) has long been recognized as a major challenge in machine-learning based image steganalysis. However, little is known about the impact of CSM on motion vector (MV) based video steganalysis. As CSM stemming from factors at the end of the processing pipeline is particularly noticeable, we conduct a study on the impact of H.264 coders on motion vectors. This paper compares the outputs of compression operations of a range of coders according to specific MV statistics. We identify discrepancies between the coders in all cases and point out why this is an indicator for CSM. This result paves the way for more extensive research on CSM in MV steganalysis.","PeriodicalId":113072,"journal":{"name":"ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICASSP49357.2023.10096323","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Cover-Source Mismatch (CSM) has long been recognized as a major challenge in machine-learning based image steganalysis. However, little is known about the impact of CSM on motion vector (MV) based video steganalysis. As CSM stemming from factors at the end of the processing pipeline is particularly noticeable, we conduct a study on the impact of H.264 coders on motion vectors. This paper compares the outputs of compression operations of a range of coders according to specific MV statistics. We identify discrepancies between the coders in all cases and point out why this is an indicator for CSM. This result paves the way for more extensive research on CSM in MV steganalysis.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
