نتایج جستجو برای: face components
تعداد نتایج: 545737 فیلتر نتایج به سال:
The sex of a face is perhaps its most salient features. A principal components analysis (PCA) was applied separately to the three-dimensional (3-D) structure and graylevel image (GLI) data from laser-scanned human heads. Individual components from both analyses captured information related to the sex of the face. Notably, single projection coefficients characterized complex differences between ...
The two Non-Destructive Evaluation [ NDE ] techniques viz., Air Coupled Ultrasonic [ACU ] and Pulsed Thermography [PT ] find many applications in aerospace industry . These NDE techniques can be used for debond detection in spacecraft structural components like honeycomb sandwich deck plates, shear web panels and central cylinder made of aluminum core and composite face sheets. The Air coupled ...
Reliable measures are required to draw meaningful conclusions regarding developmental changes in longitudinal studies. Little is known, however, about the test-retest reliability of face-sensitive event related potentials (ERPs), a frequently used neural measure in infants. The aim of the current study is to investigate the test-retest reliability of ERPs typically evoked by faces in 9-10 month...
Researchers have used several composite face paradigms to assess holistic processing of faces. In the selective attention paradigm, participants decide whether one face part (e.g., top) is the same as a previously seen face part. Their judgment is affected by whether the irrelevant part of the test face is the same as or different than the relevant part of the study face. This failure of select...
This paper implements and compares different techniques for face detection and recognition. One is find where the face is located in the images that is face detection and second is face recognition that is identifying the person. We study three techniques in this paper: Face detection using self organizing map (SOM), Face recognition by projection and nearest neighbor and Face recognition using...
Biometrics deals with identifying individuals with the help of their biological (physiological and behavioral) data. The security of biometric systems has however been questioned and previous studies have shown that they can be fooled with artificial artifacts. Also biometric recognition systems face challenges arising from intra-class variations and attacks upon template databases. To tackle s...
In order to tap the electrophysiological correlates of the perceptual and structural encoding stages of face processing, we investigated how inversion and familiarity affect the face-specific event-related potentials (ERPs) components. ERPs were recorded while participants performed a familiarity judgment task with upright and inverted photographs of famous and unknown faces. The early P100 com...
3D Face Recognition with Wireless Transportation. (August 2007) Le Zou, B.S., Southeast University; M.S., Southeast University Co–Chairs of Advisory Committee: Dr. Mi Lu Dr. Zixiang Xiong In this dissertation, we focus on two related parts of a 3D face recognition system with wireless transportation. In the first part, the core components of the system, namely, the feature extraction and classi...
Face recognition is known to be impaired when the contrast polarity of the eyes is inverted. We studied how contrast affects early perceptual face processing by measuring the face-sensitive N170 component to face images when the contrast of the eyes and of the rest of the face was independently manipulated. Fixation was either located on the eye region or on the lower part of a face. Contrast-r...
As face presentation attacks (PAs) are realistic threats for unattended verification systems, attack detection (PAD) has been intensively investigated in past years, and the recent advances PAD have significantly reduced success rate of such attacks. In this article, an empirical study on a novel effective impostor PA is made. proposed PA, facial artifact created by using most vulnerable compon...
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