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In this paper, a vowel recognition scheme using visual information is proposed based on two dimensional discrete wavelet transform (2D-DWT). First, a video frame corresponding to a steady vowel zone is selected utilizing the speech characteristics of audio frames. Next, a pixel-based method is proposed to identify the lip region of a given video frame, where intensity variation of different color...
A 12-bit counter ramp recycling analog-to-digital converter (ADC) is proposed, which can be configured in a single-step mode for achieving high conversion accuracy as well as in various multi-step modes for yielding high conversion speed. A unique ADC circuit realization is used for the different modes of operation, while a digital control unit is responsible for providing the necessary control signals...
This paper introduces a classification system for remote sensing ASTER satellite imagery using SVM and particle swarm optimization (PSO) algorithm. The proposed system starts with the identification of selected area of study. This is followed by a pre-processing phase using mapping polynomial algorithm as geometric correction. Followed by, applying threshold algorithm for image segmentation. Then...
Cropcam UAV provides GPS based digital images on demand and real time data with high temporal resolution throughout the equatorial region where the sky is often covered by clouds. The images obtained by the UAV system in this research were used to overcome the problem of unclear images obtained by the satellite and manned aircraft in our study area. Conventional classification methods commonly cannot...
Peer-to-Peer (P2P) applications generate more than 50% of Internet traffic and intensively consume network resources. Statistical machine learning approaches have been proposed as a promising way to detect P2P traffic. However, such systems require retraining in a regular basis. Hence, the generation of good quality P2P and non-P2P examples on a regular basis is not trivial. This paper proposes a...
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