1974 introduced the beginning work employing a single camera, a collection of mirrors and a single illumination source to produce the desired result [6)]. Yasuk Sugano et al. proposed a gaze tracking system which in coperate a single camera mounted on the monitor. The head pose of a person is estimated in this system by using a 3D rigid facial mesh [7]Ohno et al proposed a single camera system with a single glint [8]. Matsumoto et al. developed a system which computes the 3D head pose and estimate
catadioptric camera system enables us to record a full “half sphere image’’ in one shot. The word catadioptric means pertaining to or involving both the reflection and the refraction of light. A catadioptric camera system is engineered as a combination of a quadric mirror and a conventional sensor-matrix camera; see Figure 2 2. Catadioptric camera systems provide real-time and highly portable imaging capabilities at affordable cost. Figure 2 2(a) a commercial catadioptric camera system. The shape of
Surveillance is the monitoring of behaviour. In addition, surveillance system is the process of monitoring the behaviour of people, objects or processes within systems for conformity to expected or desired norms in trusted systems for security control (Cohen and Medioni, 1999). Video surveillance systems have existed 25 years ago whereby it started with 100% analogue system and gradually becoming digital system. The closed-circuit television (CCTV) camera is the most popular video surveillance because
The processor is the factory floor of the computer; it’s recipient of all the instructions and then processes them. It conveys the instructions of a computer program by performing rudimentary arithmetical, logical, and input/output operations of the system. Main Memory Main memory is the location where instructions and data are stored for processing. The memory we use is called RAM (random access memory). Random Access Memory Random access memory is both readable and writable but RAM is volatile
away with today's cameras. Cameras have changed the evolution of photography. Photography is the process of making pictures by the action of light. Light reflected from a subject forms an image of that subject on a light-sensitive device, called a camera, onto a paper-like material, called a picture. The image formed by light is then digitally or chemically processed into a photograph. The word photograph is combined from two different greek words. Photo comes from the greek word light, and graph
to support more than one process or program at the same time. Multiprocessing operating systems enable several programs to run concurrently. UNIX is one of the most widely used multiprocessing systems, but there are many others, including OS/2 for high-end personal computers and Windows NT for work groups. Multiprocessing systems are much more complicated than single-process systems because the operating system must allocate resources to competing processes in the most efficient manner. (IBM Dictionary
Abstract—Because of the drawbacks of the text based authentication systems, graphical passwords are the most preferable type of authentication mechanism , where users click on images for the authentication purpose. The main goal of an authentication system is to help users for selecting the better password. If the password is created by the user , then it is easy to guess by an attacker and if the passwords is assigned by the system, then it is difficult for the user to memorize. So modern researches
from running the current product to running the next product. This rapid changeover is key to reducing production lot sizes and thereby improving flow (Mura).The phrase "single minute" does not mean that all changeovers and startups should take only one minute, but that they should take less than 10 minutes (in other words, "single-digit minute"). Closely associated is a yet more difficult concept, One-Touch Exchange of Die, (OTED), which says changeovers can and should take less than 100 seconds.
as the principle of least force or Gilbert’s theory” (Howard,1988). It is one of seven major geomorphic theories of landform development; notable other include the Theory of L.C. King and Davisian Theory. (Tiwari,n.d) Image 1: Grove K. Gilbert (Lowe,A.,1920) Equilibrium is a single word that grasp a number of different ideas. Equilibrium within
the person. The images of the same person may vary from one camera view to another camera view (view point variation), or due to different lighting conditions (variation in illumination) or due to posture changes. In this paper, we introduce a re-identification method based on sparse representation. We have formulated the person re-identification as a ranking problem in which the proposed
An image is described as a two-dimensional function, f(x, y), in which x and y are plane (spatial) coordinate points, and the amplitude of at any two similar pair of coordinates (x, y) is called the intensity or gray level of the image at the particular point. When x and y the amplitude values of f are all discrete entities or finite the image is known as digital image. The domain of digital image processing directs to processing digital images by the help of a digital computer. Note that a digital
traditional color features used in CBIR, there are color histogram, color correlogram, and dominant color descriptor (DCD) [1,3,4]. A simple color similarity between two images can be measured by comparing their color histograms. The color histogram, which is a common color descriptor, indicates the occurrence frequencies of colors in the image. The color correlogram describes the probability of finding color pairs at a fixed pixel distance and provides spatial information. Therefore color correlogram yields
constantly changing around us, the medium of photography has stayed the same. As times goes on, it is easier to take photographs that are technically flawless -in regards to exposure and focus. It is still as difficult to capture aesthetically appealing images as it was in the age of film and chemicals. Technology is a necessity, but not enough to create art. The technology is impressive. Simply using the automatic setting may ensure acceptable exposure, but using the controls correctly is entirely different
produces cross-section images also called "slices" of anatomy of the human body. Radiographic beams are made incident on the human body. The reflected radio beams create a detailed computerized picture taken with a specialized X-ray machine. CT is more precise than a standard X-ray, and provides a clearer image. Fig.1 shows a CT scan of transverse view of the brain. The cross-sectional images are used for a variety of diagnostic and therapeutic purposes. The CT imaging system consists of a motorized
With the rapid development of image processing technology, it is getting easier to tamper with digital images without leaving any obvious visual trace. Today, seeing does no longer believe [1]. Image forgery, like any other illegal and pernicious activity, could cause serious harm to society. Digital image forensics is a new emerging field. The aim of image forensics is to detect whether an image has been tampered with. With the widespread usage of high-resolution digital cameras and highly advanced
establish a full image archive relating to the transmission down the ages of one of the earliest known Anglo-Saxon poems: Beowulf (thought by some to have been written in the eighth century AD, and rife with fighting, slaying and mythical monsters), as part of its commitment to increase access to its collections, by use of digital imaging and networking technology. Images of parts of the Beowulf manuscript are scanned in 24-bit colour, both under visible and ultraviolet light. These images may be of entire
In his view the novel does not consist in a single, unified form. The novel as genre subsumes several sub-genres. In Bakhtin’s own words the novel is “several heterogeneous stylistic unities.” (Bakhtin) Secondly, the novel is not monological. It does not express a single point of view that is to be of the author’s. The novel is dialogical or heteroglot. The novel expresses the multiplicity of points of view
1. INTRODUCTION The living system is a complicated system to deal with. Higher the level of the organism, complex is the understanding of the mechanisms of action, structures and dynamics of the biomolecules associated with the proper functioning of the system. It is in this regard that the progress in single molecule detection (SMD) and single molecule spectroscopy (SMS) has proved to be a boon. Although, initially it raised doubts among many as to whether it is really advantageous over ensemble
the renaissance period. Masaccio used Brunelleschi’s approach of single-point perspective, a scientific discovery that artists perfected during the awakening of the renaissance. The invention of single point perspective is a critical point in history that is seen as a part of a whole development; also as one of a number of pictorial devices that artists may or may not in depicting their subjects. The development of this linear system for the representation of space emerged in the fifteenth century
communication has become the preferred means of data transmission. The following report will look at Fiber optics and fiber optic communications critically. The history of the fiber optics will be liked into as well as the basic fiber optic communication system. There are different types of fiber optics and they too will be examined below. Introduction Fiber Optic communication can be defined as a communication technology that is designed to make use of light to carry and transmit data and information