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This paper presents a fast and efficient method to suppress (i.e. not to unwrap but only to remove) depth ambiguity for Time-of-Flight sensors. Depth and amplitude data for each pixel is obtained by correlating the emitted signal and the reflected signal. Each depth data is classified according to predetermined depth levels and the average amplitude with neighboring pixels is used to determine ambiguous...
This paper introduces basic concept of biometrics acquisition method using time-of-flight (ToF) depth camera, taking the advantages of obtaining 3D data and near infrared (NIR) image simultaneously. This concept can be applied to various biometrics, such as touch-less or multimodal biometrics.
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