; face recognition (PowerPoint)
Documents
Resources
Learning Center
Upload
Plans & pricing Sign in
Sign Out
Your Federal Quarterly Tax Payments are due April 15th Get Help Now >>

face recognition (PowerPoint)

VIEWS: 40 PAGES: 21

  • pg 1
									       FACIAL RECOGNITION
          TECHNOLOGY
Prepared By :
OUTLINE
 WHAT IS BIOMETRICS?
 WHAT IS FACIAL RECOGNITION
  TECHNOLOGY?
 CONTROVERSY
 MY OPINION OF THIS TECHNOLOGY
 QUESTIONS????????
WHAT IS BIOMETRICS?

BIOMETRICS – any automatically
  measurable, robust and distinctive physical
  characteristic or personal trait that can be
  used to identify an individual or verify the
  claimed identity of an individual.
TWO MAIN USES
1) IDENTFICATION
     -figure out “Who is X?”
     -accomplished by system performing a
     “one-to-many” search
2) VERIFICATION
     -answer the question “Is this X?”
     -accomplished by the system performing
     a “one-to-one” search
TYPES OF BIOMETRICS
Iris Scanning
   -measures the iris patter in the colored part
   of the eye
Retinal Scan
   -measures the blood vessel patterns in the
   back of the eye
TYPES OF BIOMETRICS
Voice Recognition
  -measures the vocal characteristics of a
  person using a specific phrase
Finger Printing
  -measures the unique pattern of lines on a
  persons finger
FACIAL RECOGNITION
 Facial recognition is a form of computer
 vision that uses faces to attempt to identify
 a person or verify a person’s claimed
 identity. Regardless of specific method
 used, the facial recognition is accomplished
 in a five step process.
FIVE STEP PROCESS (STEP 1)
ACQUIRING THE IMAGE OF AN
  INDIVIDUALS FACE
2 WAYS TO AQUIRE IMAGE
1)Digitally scan an existing photograph
2)Acquire a live picture of a subject
FIVE STEP PROCESS (STEP 2)
LOCATE IMAGE OF FACE
 -software is used to locate the faces in the
 image that has been obtained
FIVE STEP PROCESS (STEP 2)
FIVE STEP PROCESS (STEP 3)
ANALYSIS OF FACIAL IMAGE
 -software measures face according to is
 peaks and valleys (nodal points)
 -focuses on the inner region of the face
 known as the “golden triangle”
 -nodal points are used to make a face print
FIVE STEP PROCESS (STEP 4)
COMPARISON
 -the face print created by the software is
 compared to all face prints the system has
 stored in its database.
FIVE STEP PROCESS (STEP 5)
MATCH OR NO MATCH
 -software decides whether or not any
 comparisons from step 4 are close enough
 to declare a possible match
FINAL STEP
THE HUMAN OPERATOR
CONTROVERSY
VIOLATION OF CONSTITUTION RIGHT
  AGAINST UNREASONABLE SEARCH?
United States v. Dionisio, 410 U.S. 1, 14 (1973)
  -person does not have a reasonable expectation of
  privacy of those physical characteristics that are
  constantly exposed to the public such as one’s
  facial features, voice and handwriting
CONTROVERSY
THE BORDER EXCEPTION
-the fourth amendment recognizes the
  longstanding right of the sovereign to
  protect itself by stopping and examining
  persons and property crossing into this
  country
MY THOUGHTS ON FACIAL
RECOGNITION TECHNOLGY
REVIEW
 WHAT IS BIOMETRIC?
 WHAT IS FACIAL RECOGNTION
  TECHNOLOGY?
 CONTROVERSY
 MY OPINION
QUESTIONS??????

								
To top