Introdouction: The mapping of ghost images of the maxilla and the nasal cavity, which are complex structures, is very important. The position of objects that create a ghost image can differ when using various devices. The purpose of this investigation was to study the mapping of ghost images of the maxilla and the nasal cavity using a Cranex D digital panoramic machine. Materials and methods: ...

In this work we study the power of the methods for digital device identification and image integrity verification, which rely on sensor pattern noise as device signatures, and the repudiability of the conclusions drawn from the information produced by this type of methods. We prove that the sensor pattern noise existing in the original images can be destroyed so as to confuse the investigators....

Traditional approaches to digital forensics deal with the reconstruction of events within digital devices that were often not built for the creation of evidence. This paper focuses on incorporating requirements for forensic readiness – designing in features and characteristics that support the use of the data produced by digital devices as evidence. The legal requirements that such evidence mus...

This study identifies factors underlying the digital divide that is faced by the disabled. The results of its analysis showed that the digital divide in PC use is affected by age, number of years of education, employment status, and household income of more than KRW 3 million. The digital divide in smart device use is affected by sex, age, number of years of education, time when disability stru...

The energy dissipation in a proposed digital device in which discrete degrees of freedom are used to represent digital information (a "single-electron parametron") was analyzed. If the switching speed is not too high, the device may operate reversibly (adiabatically), and the energy dissipation ℰ per bit may be much less than the thermal energy scale kBT (where kB is Boltzmann's constant a...

Non-intrusive component forensics involves identifying algorithms and parameters of a device based on its output data alone. This project extends several of these techniques from standalone digital cameras to cell phone cameras. Methods used include estimating a device’s color interpolation coefficients and noise feature parameters. Robustness to post-camera operations such as digital zoom and ...

The last few decades have witnessed the increasing popularity of low-cost and highquality digital imaging devices ranging from digital cameras to cellphones with builtin cameras, which makes the acquisition of digital images become easier than ever before. Meanwhile, the ever-increasing convenience of image acquisition has bred the pervasiveness of powerful image editing tools, which allow even...

One of the main tasks of digital image analysis is to recognize the properties of real objects based on their digital images. These images are obtained by some sampling device, like a CCD camera, and are represented as finite sets of points that are assigned some value in a gray level or color scale. A fundamental question in image understanding is which features in the digital image correspond...

This paper outlines a new approach to the acquisition and processing of digital evidence obtained from disparate digital devices and sources. To date the capture of digital based evidence has always been in its entirety from the source device and different methods and containers (file types) are used for different types of digital device (e.g. computer, PDA, mobile phone). This paper defines a ...