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DeepfakesandDetection深度伪造与检测
MembershipInferenceAttackDifferentialPrivacy
ThisWeekGeneralTampering(一般数据篡改)Deepfake(深度伪造,图像)DeepfakeVideos(深度伪造,视频)Detection
DALL·E3OpenAIText2Image,ImageEditing…Imagen2GoogleText2Image,Text2VedioStableDiffusion3StabilityAIText2Image,ImageEditing…SignificantProgressinComputerVision
AnAI-generatedportraitsoldfor$432,000attheChristie‘s(2018)AIartworkwonfirstprizeinartcompetition.(2022)TheresolutionandfidelityofgeneratedfaceimagesareconstantlyimprovingignificantProgressinComputerVision
GenerateanimageusingthefirstparagraphofOneHundredYearsofSolitude?(2021)DaLL·E2(2022)Generateanimagebasedontext:“IhavealwayswantedtobeacoolpandaridingaskateboardinSantaMonica.”Imagic(2022)Editimageswithtext.SignificantProgressinComputerVision
DataTamperingandForgeryDefinition:Tamperimagesandvideoswithvarietyoftechniques,suchasdeepfakes.Accordingtothecontentandtypeofthetampereddata:generaltamperingfaceforgery.AfakeimageaboutBushJr.election
ThisWeekGeneralTamperingDeepfakeDeepfakeVideosDetection
GeneralTamperingDefinition:tampertheoriginalimagebyadjustingthespatialpositionofobjects,replacingtheoriginalcontentwithforgedcontent(stylemodification,texturetransformation,imagerestoration…)TaxonomyContext-basedtamperforegroundobjectstamperimagebackgroundConditionedText-guidedimagetampering
GeneralTamperingModeldifferentelementsintheimage:theshapeofobjects,theinteractionbetweenobjectsandtheirrelativepositions,…?CoreProblem:howtodecoupledifferentelementsinanimage?(ForegroundBackground,TextureStructure,…)
ForegroundTamperingConstructobject-levelsemanticsegmentationmapsHong,Setal.Learninghierarchicalsemanticimagemanipulationthroughstructuredrepresentations.?NeurIPS,2018.
BackgroundTamperingZou,Zetal.Castleinthesky:dynamicskyr
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