Complex Security Systems Research Articles

A HYBRID APPROACH TO HUMAN SKIN REGION DETECTION

Face recognition is important in research areas like machine vision and complex security systems. Skin region detection is a vital factor for processing in such systems. Hence the proposed paper focuses on isolating the regions of an image corresponding to human skin region through the hybrid method. This paper intends to combine the skin region detected from RGB and YCbCr color spaces image by the explicit skin color conditions and the skin label cluster identified from CIELab color space image, which is clustered by Hillclimbing segmentation with K-Means clustering algorithm. Then the resultant image is dilated by arbitrary shape and filtered by the median filter, in order to enhance the skin region and to avoid the noise respectively. The proposed method has been tested on various real images, which contain one or more human beings and the performance of skin region detection is found to be quite satisfactory.

A complete system for vehicle plate localization, segmentation and recognition in real life scene.

There are many applications of plate identification in pattern recognition and machine vision. These applications range from complex security systems to commons areas and from parking admission to urban traffic control. Car license plate recognition (CLPR) has complex characteristics due to diverse effects as fog, rain, shadows, irregular illumination conditions, partial occlusion, variable distances, cars' velocity, scene's angle on frame, plate rotation and conservation, number of vehicles in the scene and other. These factors make plate recognition much more complex and difficult than the traditional pattern or optical character recognition (OCR) systems. The main objective of this work is to show a system that solves the practical problem of car identification for real scenes. All steps of the process, from image scene acquisition to optical character recognition are considered to achieve an automatic identification of plates. It can be used with all type of country rules or plates design and adapted to each situation. The system is computationally very efficient and it is suitable for others related image recognition applications.

7.2.2 Agile Development of Tractable Analyses and Simulations of Complex Systems

AbstractAgile development differs from other engineering processes in the manner in which each task is performed, and the ability to respond to changes in scope or requirements. The agile model permits continual feedback after a complete pass through each of the disciplines. Agile development enables the system to be built in a series of cycles from a set of rudimentary capabilities to the full system capability. When agile development is applied to the analysis of complex systems and “wicked problems,” the inherent conflicts and inconsistencies of those systems can be resolved. The result of applying “agile” to analysis of a wicked problem is the Design for Tractable Analysis (DTA) framework. DTA analyzes the system (or enterprise) of interest as a whole, in conjunction with decomposing the system into constituent elements for domain specific analyses that are informed by the whole. The use of DTA is demonstrated through a case study of a complex security system.

Error analysis for a lens-less in-line digital holographic complex information security system based on double random phase encoding

We study the error tolerance properties of double random phase encoding implemented in the case of a lens-less whole (both amplitude and phase) information security system based on in-line digital holography. A generalized position-phase-shifting in-line digital holographic method is used as a tool for implementing our information security system. The effect on the decrypted image, due to additive and multiplicative noises in the retrieved complex encrypted image, is studied. The quality of the decrypted complex data is quantified by computing signal-to-noise ratio (SNR) and the mean square error (MSE). We also study the system tolerance due to the data loss and binarization of encrypted retrieved complex hologram. Results from numerical experiments are presented.

A Life or Death InfoSec Subversion

Details about failures of complex and well-implemented information-based attacks on systems are extremely difficult to obtain. However, here the authors examine a real-life analogue - an information attack on a highly complex security system, that of the Colombian guerrilla group FARC. This operation included a man-in-the-middle attack, targeted denial of service (DoS), and authentication subversion. The attack on FARC's communications structure is interesting not only because of its electronic and analog components, but also because it was a life or death matter. The authors examine the hostages' liberation from an information security perspective, compiling data from several Colombian newspapers and magazines and using the most accepted version of the events.

Evaluation of degradation of the stability of the complex information security system in time

Expression and method of calculation are got for determination of complex information defense system time probability . Penetration powers development, information reading systems development, complex information defense system elements firmness degradation are taken info account in expression.

Social Security Reform Ideas in Japan

Japan has a complex social security system. This article discusses the demographic and economic situation in Japan as background for understanding the setting in which the social security system functions. Japan has a three-pillar system for retirement income. The first pillar is the social security pension plan; the second pillar is the voluntary occupational pension plan; and the third pillar is personal savings, including the personal pension plan. The most important part of the retirement income system is the social security pension plan, which paid benefits accounting for 64% of the total income of elderly households in 1998. The five Employees' Pension Plans are established on a compulsory social insurance basis. Most large Japanese employers have a mandatory retirement age. Over 90% of all employees, including public sector ones, must retire from their career jobs at age 60.

Binaural helmet: improving speech recognition in noise with spatialized sound.

This study assessed the effects of spatialized sound presentation on a listener's ability to monitor target (T) messages in the presence of competing (C) messages and high-level (110 dB[A]) background noise (BGN). In a simulated military environment, 8 participants wore two-channel, active noise reduction (ANR) equipped helmets and listened to combinations of T and C messages (89 dB[A] at the ear). T messages were presented synchronously with 0, 1, 2, and 3 C messages in four listening modes: (a) BGN + diotic, (b) BGN + dichotic, (c) BGN + spatial audio, and (d) quiet + spatial audio. Best overall performance occurred in the spatialized modes (c and d) and poorest in the diotic mode (a). As expected, speech recognition was better in quiet than in BGN when multiple C messages were present. Findings indicate that message spatialization in acoustic space improves auditory performance during times of heavy message competition, even in high-level noise. The proposed technology has numerous applications, such as multichannel communications in tactical operations centers, monitoring of complex security systems, and air traffic control.

Pay TV Security Analysis

In recent years the management of many large corporations have allocated considerable amounts of research capital to the development of highly complex security systems to be used in Pay TV. These decisions were often made without adequate financial analysis due to the diverse disciplines required for such an analysis. The objective of this paper is the creation of a well defined model capable of predicting the financial consequences of variations in the security parameters involved in Pay TV. It is also essential to differentiate between Pay TV Systems which depend upon serving subscribers from a randomly distributed population and Pay TV Systems based on geographic abnormalities in their subscriber distribution, such as the population densities associated with high rise apartment buildings in metropolitan areas. In the latter Systems the signals are transmitted either by beamed microwaves or by dedicated cables, permitting very low delivery cost per subscriber. Security in these systems is primarily a result of residing in a serviced complex, and this type of Pay TV System will not be considered in this paper.