منابع مشابه
Video Relighting Using Infrared Illumination
Inappropriate lighting is often responsible for poor quality video. In most offices and homes, lighting is not designed for video conferencing. This can result in unevenly lit faces, distracting shadows, and unnatural colors. We present a method for relighting faces that reduces the effects of uneven lighting and color. Our setup consists of a compact lighting rig and a camera that is both inex...
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A key problem for face recognition has been accurate identification under variable illumination conditions. Conventional video cameras sense reflected light so that image grayvalues are a product of both intrinsic skin reflectivity and external incident illumination, thus obfuscating the intrinsic reflectivity of skin. Thermal emission from skin, on the other hand, is an intrinsic measurement t...
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Mouth center detection is important for speech and speaker recognition based on lip movements. In this paper we present an algorithm for mouth center detection under active near infrared illumination. Face images captured in the near infrared spectrum are normalized with respect to size and in-plane rotation of the eyes. A coarse image region containing the mouth can be determined in the normal...
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ژورنال
عنوان ژورنال: The Journal of the Institute of Television Engineers of Japan
سال: 1960
ISSN: 1884-9644
DOI: 10.3169/itej1954.14.164