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Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
Bfp final presentation
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Bfp final presentation

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    • 1. <ul><li>Presented by </li></ul><ul><li>LAKSHMY.J </li></ul><ul><li>Roll no:46 </li></ul><ul><li>S7 CS </li></ul><ul><li>MACE </li></ul>Brain Fingerprinting Technology
    • 2. TOPIC OUTLINE <ul><li>1. Introduction </li></ul><ul><li>2. Working Principle </li></ul><ul><li>3. Scientific Procedure </li></ul><ul><li>4. Equipments and Technology </li></ul><ul><li>5. Algorithm used </li></ul><ul><li>6. EEG measurement </li></ul><ul><li>7. Applications </li></ul><ul><li>8. Disadvantages </li></ul><ul><li>9. Conclusions </li></ul><ul><li>10. References </li></ul>
    • 3. INTRODUCTION <ul><li>Invented by Dr. Farwell </li></ul><ul><li>Proved successful over 170 cases </li></ul><ul><li>Computer based technique that measures recognition of familiar stimuli by measuring electrical brain wave responses to words, phrases, or pictures that are presented on a computer screen </li></ul>
    • 4. WORKING PRINCIPLE <ul><li>Entire system under computer control includes </li></ul><ul><ul><li>Presentation of the stimuli </li></ul></ul><ul><ul><li>Recording of electrical brain activity </li></ul></ul><ul><ul><li>Determination of &quot;information present&quot; or &quot;information absent,&quot; </li></ul></ul><ul><ul><li>Mathematical data analysis algorithm that compares the responses </li></ul></ul><ul><ul><li>statistical confidence level for the determination. </li></ul></ul>
    • 5. WORKING PRINCIPLE (Contd.) <ul><li>When someone commits a crime, his brain records it in the memory . </li></ul><ul><li>BFP seeks to reveals that memory, by showing the suspect, evidences taken from the crime scene. </li></ul><ul><li>A head band with EEG sensors is placed on the subject which digitizes brain wave activity and feeds it to the computer. </li></ul>
    • 6. WORKING PRINCIPLE (Contd .) <ul><li>The computer records the brain waves produced in response to what the subject sees which are called as Event Related Potentials (ERP) </li></ul><ul><li>On seeing familiar info p300,a positive electric voltage is elicited for 300ms by the brain which is recorded as a wave form. </li></ul><ul><li>P300 along with along with other electrically negative components constitutes the MERMER (Memory and Encoding Related Multifaceted Electroencephalographic Response) </li></ul>
    • 7. WORKING PRINCIPLE (Contd .) <ul><li>By analyzing MERMER the pattern of waves using suitable computer based algorithm, it can be determined if the subject is recognizing what he is seeing. </li></ul><ul><li>Accuracy lies in the ability to differentiate p300 brain wave, before the suspect has time to affect the output. </li></ul>
    • 8. SCIENTIFIC PROCEDURE <ul><li>Stimulus appears for a fraction of a second when they are presented on a video monitor under computer control. </li></ul><ul><li>Three types of stimuli are presented: </li></ul><ul><li>I ) Targets, </li></ul><ul><li>2 ) Irrelevants, and </li></ul><ul><li>3 ) probes. </li></ul>
    • 9. SCIENTIFIC PROCEDURE (Contd.) <ul><li>TARGETS stimuli </li></ul><ul><ul><li>Info known to suspect about the crime </li></ul></ul><ul><ul><li>Elicits a MERMER </li></ul></ul><ul><li>IRRELEVANTS stimuli </li></ul><ul><ul><li>Info not related to the crime </li></ul></ul><ul><ul><li>Do not elicit a MERMER </li></ul></ul><ul><li>PROBES stimuli </li></ul><ul><ul><li>Info relevant to the situation under investigation that only the perpetrators knows </li></ul></ul><ul><ul><li>Elicits a MERMER </li></ul></ul>
    • 10. SCIENTIFIC PROCEDURE (Contd.) <ul><li>Stimuli consists of 1/6 targets, 1/6 probes and 2/3 irrelevents. </li></ul><ul><li>Comparing “Probe” with the “Target” determines if the subject recognizes the Probes </li></ul><ul><li>Comparing the “Probe” with the “Irrelevant” determines if the subject does not recognizes the Probes. </li></ul>
    • 11. EQUIPMENTS AND TECHNOLOGY <ul><li>The BFP system comprises </li></ul><ul><ul><li>A personal computer </li></ul></ul><ul><ul><li>A data acquisition board </li></ul></ul><ul><ul><li>A graphics card for driving two monitors from one PC </li></ul></ul><ul><ul><li>A 4 channel EEG amplifier system </li></ul></ul><ul><ul><li>Software for data acquisition and analysis </li></ul></ul><ul><ul><li>Electrodes </li></ul></ul>
    • 12. DATA ACQUISITION BOARD
    • 13. BLOCK DIAGRAM
    • 14. ALGORITHM USED <ul><li>Nonparametric statistical method called Bootstrapping compares the responses produced by the stimuli. </li></ul><ul><li>It deduces the distribution of a statistic from a sample </li></ul><ul><li>Determines how reliable that statistic is as a measure for the population. </li></ul>
    • 15. FLOW CHART
    • 16.  
    • 17.  
    • 18.  
    • 19. EEG MEASUREMENT <ul><li>Functional activities emerging from the brain is reflected by the variation of the surface potential distribution on the scalp. </li></ul><ul><li>When a stimulus appears, the EEG breaks into a series of larger peaks and troughs which constitutes the ERP </li></ul><ul><li>Voltage difference between a pair of electrodes are measured, filtered, amplified and recorded for analysis. </li></ul>
    • 20. EEG MEASUREMENT (Contd.)
    • 21. APPLICATIONS <ul><li>National Security </li></ul><ul><ul><li>Aids in determining who has participated in terrorist acts, directly or indirectly. </li></ul></ul><ul><ul><li>Aids in identifying trained terrorists with the potential to commit future terrorist acts, even if they are in a “sleeper” cell and have not been active for years. </li></ul></ul><ul><li>To test job applicants on the falsification of an application. </li></ul>
    • 22. APPLICATIONS (Contd.) <ul><li>Medical Field </li></ul><ul><ul><li>Helps in detecting diseases such as Alzheimer's </li></ul></ul><ul><ul><li>Evaluation of the effectiveness of the treatment </li></ul></ul><ul><li>Helps in Identifying false-witnesses </li></ul><ul><li>Successfully predict learning difficulties </li></ul>
    • 23. APPLICATIONS (Contd.) <ul><li>Advertising area </li></ul><ul><ul><li>What specific information do people retain from advertising </li></ul></ul><ul><ul><li>which element have more impact </li></ul></ul><ul><ul><li>Which type of media is most effective </li></ul></ul><ul><ul><li>What commercial is most effective for a single product </li></ul></ul><ul><li>Criminal Justice </li></ul><ul><ul><li>Improves speed and accuracy </li></ul></ul><ul><ul><li>Reduces time and cost </li></ul></ul>
    • 24. DISADVANTAGES <ul><li>Not applicable for general screening. </li></ul><ul><li>It does not indicate intent of the crime. </li></ul><ul><li>Takes a fair amount of time to set up and conduct properly . </li></ul><ul><li>Difficult to distinguish the criminal and a witness who saw all the criminal activity happen. </li></ul>
    • 25. CONSLUSIONS <ul><li>BFP is a new technology which provides high rate accuracy results </li></ul><ul><li>Introduction of this technology, decreases the crime rates in the future to a considerate extend. </li></ul><ul><li>It is fully developed and is available for application in the field. </li></ul>
    • 26. REFERENCES <ul><li>http://www.brainwavescience.com/ </li></ul><ul><li>http://en.wikipedia.org/wiki/Brain_fingerprinting </li></ul><ul><li>http://www.scribd.com/doc/20835999/Brain-Fingerprinting-Report </li></ul><ul><li>http://www.slideshare.net/singhgarima/brain-finger-printing-2128593 </li></ul><ul><li>http://patft.uspto.govc </li></ul><ul><li>http://www.encyclopedia.com/ </li></ul>
    • 27. THANK YOU

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