The detection of weapons concealed underneath a person’s cloths is very much important to the improvement of the security of the public as well as the safety of public assets like airports, buildings, and railway stations etc. Manual screening procedure gives unsatisfactory results when the object is not in the range of security personnel and when there is an uncontrolled flow of people. The go...

This paper introduces a new method of securing image using cryptographic and steganographic techniques. The science of securing a data by encryption is Cryptography whereas the method of hiding secret messages in other messages is Steganography, so that the secret’s very existence is concealed. The term ‘Steganography’ describes the method of hiding cognitive content in another medium to avoid ...

People interact with each other for various reasons. Based on the purpose of the relationship, these interactions exhibit certain characteristics. One such important characteristic is that of concealment. Concealed relations can often be a source of interest especially in the domain of counterterrorism where relations fostering malicious activities tend to be secretive or concealed from the gen...

Fixed Sprinklers (Concealed or Pop-up) This type of system has not been used on golf courses because the makers have never been able to convince the golf clubs that these systems are practicable. Hence it is the specialized makers of golf course sprinkling equipment who are the first to develop concealed-fixed position sprinklers for golf courses. At this writing, "Billy" Bell is installing ele...

Millimeter wave (MMW) imaging has found rapid adoption in security applications such as concealed object detection under clothing. However, the imaging quality is often degraded due to resolution limit and low signal level. This study addresses shape feature analysis following concealed object detection. The object region is extracted by multi-level segmentation. Shape features are composed of ...

A new promising architecture of microwave personnel screening system is analyzed in this paper with numerical simulations. This architecture is based on the concept of inverse aperture synthesis applied to a naturally moving person. The extent of the synthetic aperture is formed by a stationary vertical linear antenna array and by a length of subject’s trajectory as he moves in the vicinity of ...

The ideal goal of good dentist is to restore the missing part of oral structure, phonetics, his look and the most important is restored the normal health of the patient, which is hampered due to less or insufficient intake of food. Removable partial denture (RPD) treatment option is considered as a notion, which precludes the inevitability of "floating plastic" in edentulous mouth, that many ti...