Today many biometric technologies such as face, iris, voice print and hand based biometrics traits (palm print or fingerprint) can be used to identify persons. Each biometrics has its advantages and defects; no single biometric can effectively meet all requirements like accuracy, practicality and cost of all applications (Maltoni, Maio, Jain, & Prabhakar, 2003). Some of the most frequently used biometric systems are shown in figure 1.2.
Face Recognition (Li and Jain, 2005) identifies user or people by analyzing the unique features of the face, which are not changed during the lifespan of the person unless and until some real wound or damage occurs. The features include color of eye, color of skin, and nose shape and the upper outlines of the
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Keystroke progression or dynamics is identified with the way individuals sort characters on consoles. Its consideration as a developing biometric trademark is supported by mental examinations, which exhibited that human dreary or routine activities are unsurprising and understandable and along these lines, an individual could be described by their keystroke flow (Nauman & Ali, 2010). Gait is a budding feature for behavioural biometrics which works based on walking style or habit of the human beings (Ailisto et al., 2005; Mäntyjärvi et al., 2005). Most of the gait recognition approaches are based on machine observation techniques and it’s not well suited for sophisticated or dedicated high security systems. Voice biometrics is yet another type of behavioural biometrics which extracts information from stream of speech signals by measuring its properties pitch, amplitude and frequency (Woodward et al., 2003).
Fingerprint identification is one of the most important biometric technologies compared to other biometrics due to its popularity and widely available technologies since the early 1975 (Halici et al., 1999), which has drawn a considerable amount of interest recently. A fingerprint is a physiological feature of an individual that uniquely identifies the person based on fingerprint ridge and valley pattern (Jain and Maltoni, 2003). As fingerprint is the main focus of this research, it is discussed elaborately in following
Voter ID laws are two sided, but most Americans feel that it is necessary to prevent voter fraud. Republicans feel that an individual should already have a state ID because this is required by so many government agencies. Unfortunately, the Democrats are the ones to be most likely affected due to their voters’ economic status, disabilities and age. Whereas, Democrats believe that it is a tactic to defer their supporters from voting.
5.2 GABOR-KPCA Results: Using Mahalanobis Cosine (MAHCOS) Distance Identification experiments: The rank one recognition rate of the experiments equals (in %): 80.00% Verification/authentication experiments on the evaluation data: The equal error rate on the evaluation set equals (in %): 4.17% The minimal half total error rate on the evaluation set equals (in %): 2.68%
Stop and Frisk is one of the most controversial police procedures implemented in New York City. This is a limited search where the police officer confronts a person that he or she deems suspicious with the goal being crime prevention. The police officer does this by patting the person down for weapons, as well as questioning the individual. However, the people stopped are predominantly Black and Latino.
Recently there has been a surge of suspected police brutality in our community. Tension is building between citizens and our police officers. So in response, I propose that we institute body cameras for our police force. Now, I know that there may be some issues with citizens saying that it will only cause more tension for the citizens. I have heard the argument that it will cause people to self-censor even though they have nothing to hide.
Each new program instituted to combat crimes comes with some controversy and its opponents. None has come under as much scrutiny as New York’s almost notorious Stop and Frick policy. Introduced as an approach to lever crime in The Big Apply, it has been scrutinized by what is being characterized as unconstitutional practice. Created under Mayor Michael Bloomberg, it has been credited at curbing crime and a fundamental tool in effective policing. Conversely, critics have pointed to the policy as being ineffective, racially driven and in clear violation of a person’s civil liberties.
Body-Cameras “A government that operates in the dark is a government people should be concerned about.” - Bates, a police analyst. Police Departments around the Nation are looking at requiring officers wearing cameras. In 2014 Barack Obama stated, he would strengthen standards by enforcing body cameras for police departments to lower the amount of deaths, complaints, and viral harassment, towards the police departments. For Instance, Leslie Sapp was fatally shot as Marshals went to Leslie’s house to give him a warrant, they claimed that he pointed a toy gun at them, the Marshals were not charged.
Racial profiling is not justified , many cops should not have to shoot , run after , or even arrest someone due to race. This resolves to the term "Racism" and many people are still racist which lead cops and even citizens to act upon someone a different race than they are. The cost and benefits of racial profiling in not really beneficial but the cost is many innocent lives taken away from a trigger and a man with a badge. So whats there to do ? How can we stop this ?
NYPD has engaged in a practice known as “Stop and Frisk”. This policy allows officers, based on reasonable suspicion that criminal activity is afoot, to engage in investigatory stops and to conduct a pat down of the outer clothing of the individual if there is reasonable suspicion that the suspect is armed” (Simmons, 2014). A stop can take place with an individual that an officer considers reasonable to search based upon speculation of an encounter. For example an officer pulls over a young black man and request for his driver license and registration. The young man complies but the officer begins to speculate and assume he is carrying either illegal drugs or a concealed weapon.
The act of “Stop and Frisk” began in the early 1900’s when crime rates began to escalate in major cities such as New York, Chicago, and Philadelphia. Stop, question, and frisk, or SQF, is an urban policing measure that involves the large-scale deployment of officers in public spaces (e.g., sidewalks, alleys, the communal outdoor spaces of public housing) tasked with conducting frequent investigative stops (Huq, A. Z. (2017). In the articles provided, it is questioned whether New York’s stop and frisk policy is constitutional or not. I agree with the court's ruling, I believe Judge Scheindlin seemed too involved. “Judge Shira A. Scheindlin, the appeals court said, jeopardized "the appearance of partiality ... by a series of media interviews and public statements purporting to respond publicly to criticism of the District Court”
2.4 Band Division and Energy Computation: The power spectrum of the signal is multiplied by magnitude response of set of 33 triangular band pass filters and in the range 300Hz-2000Hz. Sub-bands are formed by using the logarithmic spacing. The positions of these filters are equally spaced along the Mel frequency, which is related to the common linear frequency f by following formula: Mel (f) = 1125* ln (1+f/700) (3) Mel frequency is proportional to the logarithm of linear frequency and which is close to the human perceptual system. 2.5 Sub Fingerprint Generation:
The Richard Ramirez "Night Stalker" case was one of the first major cases to use automated fingerprinting technology (Frese, 2011). Today, the fingerprinting database gives various probable identifications, then a trained fingerprint expert must compare the prints to find a likely identification. Considering that Ramirez's prints were found on the mirror of a stolen vehicle we can conclude that his fingerprints were two-dimensional, therefore the prints are termed as latent or residue prints. The authorities at the crime scene power-dusted his prints considering that is the best physical method for collecting fingerprints. Once analyzed using the ACE-V (analysis, comparison, evaluation and verification) method, the fingerprint expert was able to identify them as belonging to Ramirez.
Fingerprints are a significant form of forensic evidence because they define an individual. Every time people touch something, “they leave a little bit of themselves behind” (Sohn
Fingerprinting is method based on the uniqueness of the skin pattern - that is, each person has a completely individual pattern of papillary lines. These patterns do not change throughout life and have the property of recovering from damage to the skin in its previous form. On the one hand, this method almost completely eliminates the mistake, and on the other hand it is very cheap and easy to use (in contrast the method of identification of a person by DNA). Fingerprinting allows: 1) to identify the person who left the prints, according to the general and particular features of the papillary pattern displayed on them; 2) to exclude individual from among those who have touched the object; 3) to narrow the group of individuals suspected of the particular crime (for instance, provided that the imprint shows traces of a scar, a burn, a wart or some other distinctive feature).
Abstract— Face recognition is one of the most important biometric and face image is a biometrics physical feature use to identify people. Major and Minor segments of face space are eyes, nose and mouth. In biometrics quality face is the most imperative characteristic method for recognize individuals. High intra-class variety inside face pictures of the same individual is the significant issue in face distinguishment. Posture, statement and enlightenment are in charge of high intra-class variety.
The following section will consider advantages and limitation of the first two mentioned types of digital forensics: Traditional (dead) and Live computer forensics. TRADITIONAL (DEAD) VS LIVE DIGITAL FORENSICS Traditional (Dead) Forensics In order forensic acquisition to be more reliable it must be performed on computers that have been powered off. This type of forensics is known as ‘traditional’ or 'dead ' forensic acquisition. The whole process of dead acquisition, including search and seizure flowchart and acquisition of digital evidence flowchart is shown on Figure 2 and Figure 3 respectively.