The paper describes experimental results of low power sensor nodes designed to perform bearing estimation. The nodes are intended to form a wireless sensor network able to locate an audio source. Two different nodes a...
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The paper describes experimental results of low power sensor nodes designed to perform bearing estimation. The nodes are intended to form a wireless sensor network able to locate an audio source. Two different nodes are tested: one is based on a cross-correlation derivative integrated circuit (IC), and the other on a gradient flow IC. Implementation details and experimental results of both systems working in a natural environment are presented.
In this paper, we integrate the advantages of SOM- and snake-based ACMs in order to extract the desired contour from images. We employ (i) the feature points to guide the contour, as in the case of SOM-based ACMs;and ...
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The use of machine learning and cognitive modeling techniques to derive user states and intent from the devices sensors for context-aware computing is described. Context-aware computing describes the situation where a...
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ISBN:
(纸本)0780388232
The use of machine learning and cognitive modeling techniques to derive user states and intent from the devices sensors for context-aware computing is described. Context-aware computing describes the situation where a mobile computer is aware of its user's state and surroundings and modifies its behavior based on this information. The unsupervised machine learning techniques are used to independently cluster sensor quantities and associate user interactions with these clusters. The use of this also discretization enables learning from observations about the user.
Fault-injection attacks and cryptanalysis is a realistic threat for systems implementing cryptographic algorithms. We revisit the fault-injection attacks on the Fiat-Shamir authentication scheme, a popular authenticat...
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Fault-injection attacks and cryptanalysis is a realistic threat for systems implementing cryptographic algorithms. We revisit the fault-injection attacks on the Fiat-Shamir authentication scheme, a popular authentication scheme for service providers like pay per view television, video distribution and cellular phones. We present a new and effective attack on cryptosystems that implement the Fiat-Shamir identification scheme. The attack is successful against all system configurations in contrast to the original Bellcore attack, which has been proven incomplete (easy to defend against).
A novel approach for skin color modeling using ratio rule learning algorithm is proposed in this paper. The learning algorithm is applied to a real time skin color detection application. The neural network learn, base...
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This paper presents a novel neural network based technique for face detection that eliminates limitations pertaining to the skin color variations among people. We propose to model the skin color in the three dimension...
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This paper describes a fusion of visual and thermal infrared (IR) images for robust face recognition. Two types of fusion methods are discussed: data fusion and decision fusion. Data fusion produces an illumination-in...
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The behavior and performance of MPI non-blocking message passing operations are sensitive to implementation specifics as they are heavily dependant on available system level buffers. In this paper we investigate the b...
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Medical images usually require higher fidelity than commonly used natural images, especially with respect to detail preservation. Color medical images also require a higher degree of color preservation. In this paper,...
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Medical images usually require higher fidelity than commonly used natural images, especially with respect to detail preservation. Color medical images also require a higher degree of color preservation. In this paper, we present the extension of the novel gray-scale image compression technique, hybrid multi-scale vector quantization (HMVQ) to color image compression. Limitations of common color image compression methods in controlling bit-rate allocation for color channels are discussed, and the ability of HMVQ in overcoming such limitations while improving the color quality is demonstrated.
Fault-injection attacks and cryptanalysis is a realistic threat for systems implementing cryptographic algorithms. We revisit the fault-injection attacks on the Fiat-Shamir authentication scheme, a popular authenticat...
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Fault-injection attacks and cryptanalysis is a realistic threat for systems implementing cryptographic algorithms. We revisit the fault-injection attacks on the Fiat-Shamir authentication scheme, a popular authentication scheme for service providers like pay per view television, video distribution and cellular phones. We present a new and effective attack on cryptosystems that implement the Fiat-Shamir identification scheme. The attack is successful against all system configurations in contrast to the original Bellcore attack, which has been proven incomplete (easy to defend against).
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