Results 51 to 60 of about 30,217 (176)
Detecting tampering in a random hypercube
Electronic Journal of Probability, 2013 Consider the random hypercube $H_2^n(p_n)$ obtained from the hypercube $H_2^n$ by deleting any given edge with probabilty $1-p_n$, independently of all the other edges. A diameter path in $H_2^n$ is a longest geodesic path in $H_2^n$. Consider the following two ways of tampering with the random graph $H_2^n(p_n)$: (i) choose a diameter path at random ...
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Detecting multiple copies in tampered images [PDF]
2010 IEEE International Conference on Image Processing, 2010 Copy-move forgeries are parts of the image that are duplicated elsewhere into the same image, often after being modified by geometrical transformations. In this paper we present a method to detect these image alterations, using a SIFT-based approach. First we describe a state of the art SIFT-point matching method, which inspired our algorithm, then we ...
Edoardo Ardizzone +2 more
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FD-TamperBoard: A Tampering Features Dataset of Fuel Dispenser PCBs for Illicit Metering Detection
DataWith the development of the Internet of Things (IoT) and microelectronics technology, the methods used to tamper with fuel dispensers have become increasingly concealed, posing significant challenges to market supervision and law enforcement.
Chenbo Pei +4 more
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Aligned and Non-Aligned Double JPEG Detection Using Convolutional Neural Networks
, 2017 Due to the wide diffusion of JPEG coding standard, the image forensic community has devoted significant attention to the development of double JPEG (DJPEG) compression detectors through the years.
Barni, Mauro +7 more
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Geometric Invariant Semi-fragile Image Watermarking Using Real Symmetric Matrix [PDF]
[[abstract]]In order to improve the detection of malicious tampering of images, it is necessary to decrease the fragility of hidden watermarks, even for digital images which have been distorted incidentally. However, watermarks are sensitive to geometric
謝景棠
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Review on passive approaches for detecting image tampering [PDF]
, 2014 This paper defines the presently used methods and approaches in the domain of digital image forgery detection. A survey of a recent study is explored including an examination of the current techniques and passive approaches in detecting image tampering ...
Hashem, Fatma Salman, Sulong, Ghazali
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MathematicsSurveillance cameras provide security and protection through real-time monitoring or through the investigation of recorded videos. The authenticity of surveillance videos cannot be taken for granted, but tampering detection is challenging.
Naheed Akhtar +2 more
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An Approach to Detection of Tampering in Water Meters
Procedia Computer Science, 2015 Meter tampering is defined as a fraudulent manipulation which implies a service that is not billed by a utility company. It is a lack of consumption control for the utility company and a main problem because they represent an important loss of income.
Íñigo Monedero +4 more
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Forensic Investigation of MP3 Audio Recordings
Теория и практика судебной экспертизы, 2020 Special aspects of MP3-recordings technical investigation are addressed. The following features of formation and research of MP3 phonograms are explained: traces of MP3 coding in time and spectral domain, special aspects of MP3-files structure analysis ...
A. G. Boyarov, I. S. Siparov
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Camera-based Image Forgery Localization using Convolutional Neural Networks
, 2018 Camera fingerprints are precious tools for a number of image forensics tasks. A well-known example is the photo response non-uniformity (PRNU) noise pattern, a powerful device fingerprint.
Cozzolino, Davide, Verdoliva, Luisa
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