Tampering of RFID (Radio Frequency Identification) tag data results in misinterpretation of the object to which the tag is attached. Due to the advantages offered by RFID in the field of contactless auto identification, it is being used in the widespread range of applications. With growing adoption of RFID in industries, supply chain management, healthcare systems, security systems, government ...

In this paper, we propose a novel framework to statistically measure the correlation inconsistency in mobile images for tamper detection. By first sampling a number of blocks at different image locations, we extract a set of derivative weights as features from each block using partial derivative correlation models. Through regularizing the within-image covariance eigenspectrum and performing ei...

Most watermarking algorithms are either robust watermarking for copyright protection or fragile watermarking for tamper detection. This paper proposes a fragile video watermarking algorithm that has the ability to detect tamper in spatial domains. The original video frame is converted from RGB color space into YCbCr color space, then the chrominance component Cb is partitioned into non-overlapp...

In this paper I propose an oblivious watermarking technique for tamper detection in digital images. With comparing correlation values from different portions of the image, the technique enables us to distinguish malicious changes, such as replacing / adding features from non-malicious changes resulting from common image processing operations. This technique can be implemented with small memory ...

In order to check the aboriginality and integrity of a digital photograph, a blind forensics scheme for detecting blur manipulation is proposed in this paper. A costeffective local blur estimator is designed to measure the blurriness of each pixel along a doubted edge. Consistency metric of such a blurriness sequence is constructed based on the deviation from its linear fitting. Then the metric...