Search results for "Copy-move Forgery"

showing 2 items of 2 documents

Copy–Move Forgery Detection by Matching Triangles of Keypoints

2015

Copy-move forgery is one of the most common types of tampering for digital images. Detection methods generally use block-matching approaches, which first divide the image into overlapping blocks and then extract and compare features to find similar ones, or point-based approaches, in which relevant keypoints are extracted and matched to each other to find similar areas. In this paper, we present a very novel hybrid approach, which compares triangles rather than blocks, or single points. Interest points are extracted from the image, and objects are modeled as a set of connected triangles built onto these points. Triangles are matched according to their shapes (inner angles), their content (c…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniComputer Networks and CommunicationsComputer scienceDelaunay triangulationbusiness.industryFeature vectorSURFFeature extractionScale-invariant feature transformPattern recognitionDelaunay TriangulationDigital Image ForensicVisualizationVertex (geometry)Copy-move ForgeryDigital imageComputer Networks and CommunicationHarriSIFTComputer visionArtificial intelligenceSafety Risk Reliability and QualitybusinessCopy-move Forgery; Delaunay Triangulation; Digital Image Forensics; Harris; SIFT; SURF; Computer Networks and Communications; Safety Risk Reliability and QualityTransformation geometryIEEE Transactions on Information Forensics and Security
researchProduct

State of the art in passive digital image forgery detection: copy-move image forgery

2017

Authenticating digital images is increasingly becoming important because digital images carry important information and due to their use in different areas such as courts of law as essential pieces of evidence. Nowadays, authenticating digital images is difficult because manipulating them has become easy as a result of powerful image processing software and human knowledge. The importance and relevance of digital image forensics has attracted various researchers to establish different techniques for detection in image forensics. The core category of image forensics is passive image forgery detection. One of the most important passive forgeries that affect the originality of the image is cop…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniCopyingCopy-move forgery Digital forensics Duplicated detection Manipulation detectionbusiness.industryComputer sciencemedia_common.quotation_subjectDigital forensicsComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION020207 software engineering02 engineering and technologyImage (mathematics)Digital imageArtificial IntelligenceOriginalityPattern recognition (psychology)0202 electrical engineering electronic engineering information engineering020201 artificial intelligence & image processingComputer visionRelevance (information retrieval)Computer Vision and Pattern RecognitionArtificial intelligenceState (computer science)businessmedia_commonPattern Analysis and Applications
researchProduct