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Face Recognition - Essay Example

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The purpose of this paper is to identify any more factors to be included in the optimality hypothesis so that the hypothesis can be put in to further tests. Thirty two students viewed face stimuli consisting 36 photographs during study phase and 76 photographs in test phase. …
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Face Recognition
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Download file to see previous pages Face recognition is closely related to the accuracy of identification. Researchers are working on the subject of the confidence of eye witness and its relationship with the accuracy. Assessment of accuracy of eye witness by the jurors on the basis of the confidence both expressed and implied by the eye witness naturally depends upon the jurors angle of approach and direction of focus. Empirical evidence indicates that the relationship between an identification and a persons confidence in that direction is quite weak. The optimality hypothesis proposed by Deffenbacher postulates that the relationship between the accuracy and confidence be the function of optimality of the conditions under which the faces are to be observed, identified and finally confirmed with confidence. The part where the confidence of the observer is analyzed encompasses several factors like the observer’s clarity in thoughts, absence of any external pressure to express the identification, presence of other variables like sound and movement and above all the time lag between the test phase and study phase. The findings of Winograd revealed that face recognition is improved , if during the study phase, the participants are required to answer questions about the distinctiveness of the face or specific traits, compared to the questions about a single physical feature. ...Download file to see next pagesRead More
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