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In this paper, we propose a data embedding method into still images based on Vector Quantization (VQ). In recent years, several VQ-based data embedding methods have been proposed. For example, `Mean Gray-Level Embedding method (MGLE)' are `Pair wise Nearest-Neighbor Embedding method (PNNE)' are simple, but not sufficiently effective. Meanwhile, an efficient adaptive data hiding method called `Adaptive...
This paper proposes a new identification method for position sensorless control of Interior Permanent Magnet Synchronous Motors (IPMSMs) based on an unknown input observer. In position sensorless control, precise motor parameters are required to accurately estimate the rotor position. Thus, these parameters should be identified prior to the realization of position sensorless vector control. However,...
Recently, the requirement for a high efficiency motor has increased; further, considerable attention has been paid to a permanent magnet (PM) motor, which has been studied in many researches. Therefore, we have studied a line-start permanent magnet synchronous motor (LSPMM), which can start as an induction motor and operate as a PM motor. In this paper, for the purpose of calculating asynchronous...
While a sound spoken is described by a handful of frame-level spectral vectors, not all frames have equal contribution for either human perception or machine classification. In this paper, we introduce a novel framework to automatically emphasize important speech frames relevant to phonetic information. We jointly learn the importance of speech frames by a distance metric across the phone classes,...
EDLCs (electric double layer capacitors) offer high energy density and long life span, so various applications may be anticipated in the realm of energy storage devices, such as those used in electric vehicles or electric power stabilisation in power systems, etc. However, since the voltage limit is low of the devices, it is necessary to connect them in series or parallel. In addition, it is required...
EDLCs (Electric Double Layer Capacitors) offer high energy density and long life span, so various applications may be anticipated in the realm of energy storage devices, such as those used in electric vehicles or electric power stabilisation in power systems, etc. However, since the voltage limit is low of the devices, it is necessary to connect them in series or parallel. In addition, it is required...
Recent studies in patch-based Gaussian Mixture Model (GMM) approaches for face age estimation present promising results. We propose using a hidden Markov model (HMM) supervector to represent face image patches, to improve from the previous GMM supervector approach by capturing the spatial structure of human faces and loosening the assumption of identical face patch distribution within a face image...
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