2007
DOI: 10.1109/tifs.2007.902037
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Real-Time Face Detection and Motion Analysis With Application in “Liveness” Assessment

Abstract: Abstract-A robust face detection technique along with mouth localization, processing every frame in real time (video rate), is presented. Moreover, it is exploited for motion analysis onsite to verify "liveness" as well as to achieve lip reading of digits. A methodological novelty is the suggested quantized angle features ("quangles") being designed for illumination invariance without the need for preprocessing (e.g., histogram equalization). This is achieved by using both the gradient direction and the double… Show more

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Cited by 254 publications
(111 citation statements)
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“…In [2] swing Kollreider et.al proposed a facial anti-spoofing technique proposed is based on lip movement. Users are asked to start uttering the specific number sequence prompted randomly from 0 to 9 and each lip movement was recorded sequentially.…”
Section: A Face Anti-spoofingmentioning
confidence: 99%
“…In [2] swing Kollreider et.al proposed a facial anti-spoofing technique proposed is based on lip movement. Users are asked to start uttering the specific number sequence prompted randomly from 0 to 9 and each lip movement was recorded sequentially.…”
Section: A Face Anti-spoofingmentioning
confidence: 99%
“…Some methods use multi-spectral analysis [6], or response to a challenge which is posed to the user [7] to detect spoofing attacks. The mandatory additional hardware required alongside the biometric sensor is the primary drawback of the former approach, while the intrusiveness of the latter.…”
Section: Related Workmentioning
confidence: 99%
“…3D sensors may be influenced by computation, measurement time, expense and quality anticipated from estimation. represents a synopsis of distinctive sorts of procurement frameworks utilized as a part of the writing for face liveness discovery [5]. …”
Section: A) Sensormentioning
confidence: 99%