The extraction of dynamic motion features are reported from multiple video frames by three unsupervised learning algorithms, i.e., Principal Component Analysis (PCA), Independent Component Analysis (ICA), and Non-nega...
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Optical coherence tomography (OCT) is an optical ranging technique analogous to radar - detection of back-scattered light produces a signal that is temporally localized at times-of-flight corresponding to the location...
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Interferometric synthetic aperture microscopy provides high-resolution three-dimensional optical images of semitransparent samples with large depth of field without scanning the focal plane. ISAM theory and experiment...
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Throughput (or maximum sum rate) of the downlink in cellular networks has always been an issue of importance since it reveals the maximum capability of the networks. In this paper we employ an information-theoretic ap...
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Throughput (or maximum sum rate) of the downlink in cellular networks has always been an issue of importance since it reveals the maximum capability of the networks. In this paper we employ an information-theoretic approach to establish upperbounds and lowerbounds on the throughput of the downlink in cellular networks. These bounds may serve as baselines for evaluating performance of practical transmission schemes. In a multiple input multiple output (MIMO) cellular architecture we use the zero forcing criterion to design the optimal number of antennas at each receiver given the number of antennas at each transmitter, thereby deriving a lowerbound for the total achievable multiplexing gain. This lowerbound is shown to meet the upperbound in certain cases.
We present an intelligent interface system which includes a new gesture-based wearable input device, called iThrow, as a main user interface for mobile devices, and an infrastructure helping users be aware of and make...
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We present an intelligent interface system which includes a new gesture-based wearable input device, called iThrow, as a main user interface for mobile devices, and an infrastructure helping users be aware of and make a use of various public devices in user-friendly *** this kind of intelligent interface system, selecting an object among multiple ones is one of the fundamental functions because it is a pre-cursor to all other subsequent *** propose a new selection algorithm which improves selection speed by adaptively resizing the objects' angular *** show that the proposed algorithm outperforms the ray-based selection technique in selection speed about 62.6％.
The implementation of real-time signal processing applications calls for parallelism to avoid unpractical clock frequencies and to lower power consumption. In this paper, a method for exploring the design space of par...
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The implementation of real-time signal processing applications calls for parallelism to avoid unpractical clock frequencies and to lower power consumption. In this paper, a method for exploring the design space of parallel elementary computing resources is proposed. The method can be used to find a suitable set of computing resources for processors applying instruction level parallelism (ILP) or pure hardware designs. The extensive size of the design space is coped with coarse level modeling and evaluation. The method presents the system as a union of multisets of computing resources. This formulation provides a general framework for efficient, multi-objective optimization in terms of relevant cost metrics, including processing latency, area, and power consumption. We demonstrate this framework by developing a multiobjective evolutionary algorithm based on it, and applying this algorithm to a rake receiver application.
High Mobility < 10 cm2Vsec, enables larger pixel opening, safer operation compared to TFT-LCD based on amorphous *** current driving TFT, high speed data *** optical transparency, direct, wide *** against water...
High Mobility < 10 cm2Vsec, enables larger pixel opening, safer operation compared to TFT-LCD based on amorphous *** current driving TFT, high speed data *** optical transparency, direct, wide *** against water and oxygen, because already oxidized.
Determining fundamental properties of InN is beset with difficulties. Since a conducting surface accumulation layer creates difficulties when assessing the impact of dopants, variable magnetic field Hall effect measur...
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In this paper, a variant of the conventional multicasting called geocasting, or location-based multicasting, is presented. The proposed scheme combines any casting, restricted broadcasting, and heal broadcasting to de...
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