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Transmitting compressed video data is quite common over wireless and wired networks. In error-prone networks, however, packet loss can lead to incorrect decoding. With the new generation standard, H.264/AVC, such issues are prevalent and drastically degrade the quality of decoded video. To solve these problems, error concealment is applied in the decoder. However, traditional error concealment does...
In this research, we implement a biometric authentication system on the Android platform, which is based on a text-dependent speaker recognition. The application makes use of the Modular Audio Recognition Framework (MARF), from which some of the algorithms are adapted in the pre-processing and feature extraction. In addition, we employ the Dynamic Time Warping (DTW) algorithm in the training and comparison...
In this paper, we analyze the precision of the tilting angles transferred from a 3-axis accelerometer with the previously proposed CORDIC-based tilting angle identification algorithm. We found out two issues of the original 2D-CORDIC operations which would increase the errors of the calculated angles. Hence, we propose the solutions to further enhance the precision of tilting angles calculated in...
Performing Content-Based Image Retrieval (CBIR) from Internet databases connected through Peer-to-Peer (P2P) network, abbreviated as P2P-CBIR, helps to effectively explore the large-scale image database distributed over connected peers. Decentralized unstructured P2P framework is adopted in our system to compromise with the structured one while still reserving flexible routing control when peers join/leave...
Human identification via multibiometrics is a very promising approach to improve overall systems security and recognition performance. In this paper, a novel multibiometrics fusion strategy based on dual iris, visible and thermal face traits is proposed. Firstly, 1D Log-Gabor dual iris codes are fused into a serial feature vector to address the noisy problems of iris. Then, Complex Gabor Jet Descriptor...
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