Analysis Power of Computers Essay -- Computer Technology

Keywords- Family Similarity Recognition, Facial Feature Extraction, Face Detection, PCA, Image Database. I. INTRODUCTION Over the last thirty years or so, face recognition is an active research area in computer vision and one of the most successful applications of image analysis and understanding. Different algorithms have been proposed by researchers for solving this problem and many of them are considered as the state of the art. Nowadays, the face recognition problem is not only important in the research area, but it is vital in the commercial applications. A general statement of the face recognition problem can be formulated as follows: Given still or video images of a scene, identify or verify one or more persons in the scene using a stored database of faces. Due to this definition well-known algorithms such as PCA [24], ICA [1], LDA [28], EBGM [27], B... ... middle of paper ... ...e considered for it. For example, humans use terms such as "entire face of person A is similar to person B" or "eyes and eyebrows of person A are similar to person B" or "profile view of person A is similar to person B" to express the similarity criteria between people. With respect to these observations, three features are utilized in the proposed method include: "The Whole Face", "The Facial Features’ Perimeter" and "The Ratio between Facial Features". These features are selected from the frontal and side view images. The facial features’ perimeter includes forehead, eyebrows and eyes, nose, mouth, chin and cheek. The ratios between facial features’ point can be calculated from the distances that are evident in Figure 1. Utilizing ratio instead of distances between the facial features' point eliminates the dependency to the image scale. These ratios are as follow:

Juvenile Gangs Research Paper Example | Topics and Well Written Essays - 1250 words

Juvenile Gangs - Research Paper Example Being raised in an economically depressed neighborhood can understandably lead youth persons to think that their lives are unimportant and thus want for a sense of identity. The social construction gangs offer provides juveniles with a sense of belonging, a particularly significant need for developing youths. In many neighborhoods, adolescents are actively recruited or are intimidated into becoming gang members and seemingly have little choice. â€Å"A few [teens] are virtually born into gangs as a result of neighborhood traditions and their parents’ earlier and perhaps continuing gang participation or involvement in criminal activity† (Moore, 1978). The gangs offer disenfranchised kids, who are undergoing feelings of isolation, a connection to a family-like atmosphere. Some of these youths are wavering between what they consider as their adopted and native cultures but feel a connection to neither. There are many reasons that youths join and remain loyal to gangs, all of which are complex and possibly incomprehensible to the general public. This discussion will briefly explain why juveniles join gangs then discuss gangs themselves, their motivations, general make-up, characteristics, and trends concerning street gang activity. There are numerous early factors that can lead juveniles to become gang members in addition to what might be the most obvious, living in abusive households. Poverty is another of the more significant factors. According to research conducted by the Children’s Defense Fund, nearly one fifth of all youths live below the poverty line in American cities. â€Å"Poor neighborhoods, especially ‘inner-city war zones’, generally have relatively high crime rates, unsatisfactory schools and unhealthy living conditions. They provide a child with few resources, negatively affect development and increase the chances a child will become violent† (â€Å"Rosado†, 2000, p. 15). Children who are subjected to t wo or more risk factors such as poverty and abuse, have a significantly higher risk factor of participating in criminal behavior and juvenile violence. Inner city ‘battle zones’, which have grown significantly in many of the country’s small to medium-sized towns in addition to the larger urban sections of major cities, are described as those areas in which most youths over 14 years old has attended the funeral of more than one friend, a very distinct definition, one that is difficult for most Americans to fully comprehend. (Garbarino, 1999, p. 40). Because youths living in disadvantaged neighborhoods are often ostracized from mainstream society due to their inability to afford similar material goods or the education that would afford them with the means to leave, many of these juveniles grow up under an umbrella of bitterness, anger and open contempt of the societal rules and government laws of the same society that rejected them. This circumstance makes it easie r for them to rationalize their own deviant behaviors because they are merely doing what they believe necessary so as to give themselves a chance at something beyond their present life condition, a chances they not offered elsewhere. Their perception of rejection by the society at large also instills an attitude of despair and hopelessness among youths who are already suffering from other unfavorable conditions, reinforcing the idea that life will likely always be this painful, empty

ELT1 Task 10 Essay Example | Topics and Well Written Essays - 500 words

ELT1 Task 10 - Essay Example The assessment tools define the desired outcomes, measure achievement of outcomes, and use the results to improve performance. The tools state its role within an institutions overall mission. It then identifies the outcomes that it needs to meet and evaluates whether the outcomes are achieved. These tools define the technique that will assess if the criteria are met. The tool analyses and evaluates the data collected by specific method. Assessment tool creates and put into action improvement plans about the information gathered to assess the outcome. The tools also outline the effect its improvements have achieved in the quality of their goal. A tool such as running record and Rubric documents the outcome assessment. Therefore, assessment tools work best when attention is on outcomes as well as experiences that result in those outcomes. Therefore, the assessment tools are appropriate for providing outcome data. Informal Reading Inventory (IRI) is an appropriate assessment tool for monitoring progress, diagnosing reading skills of students and providing outcome data. This is because IRI assists in determining the reading weaknesses and strength of a student. Also, IRI enable teachers to know whether their students can read the texts in class or if the students require assistance or additional monitoring. Additionally, IRI helps the teacher to identify students struggling with decoding and comprehension with certain text materials. The IRI assessment tool will be better used by an individual student and in group assessment. This is because it builds teamwork among the students in class by using other tools of assessment. The retelling assessment tool is appropriate because it demonstrates what the student remembers and comprehends about any story. It reveals what the student sees as crucial about a story. Retelling also helps in indicating what the student knows about the literary language a nd structure of a text. Consequently,