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In this paper, a new 2D cepstral descriptor will be proposed for 3D model retrieval. In the proposed approach, the overlapping subband decomposition will be employed to divide each 2D spectrum into a number of overlapped subbands for further 2D cepstral descriptor extraction. Experiments conducted on the Princeton Shape Benchmark (PSB) database have shown that the proposed 2D cepstral descriptor yields...
Spike sorting is in fact clustering analysis, which will face a problem in high dimensions: the “curse of dimensionality”. This paper proposes a new dimension-reduction approach for sorting spikes from multiunit recordings. The new approach applies the principle of sparse coding to analyzing high-dimensional spike data within the frameworks of clustering, classification and dimension reduction. Moreover,...
This paper proposes an eye state detection system using Haar Cascade Classifier and Circular Hough Transform. Our proposed system first detects the face and then the eyes using Haar Cascade Classifiers, which differentiate between opened and closed eyes. Circular Hough Transform (CHT) is used to detect the circular shape of the eye and make sure that the eye is detected correctly by the classifiers...
This paper presents an optimal design of interior permanent magnet synchronous machine (IPMSM) for electric spindle considering the flux-barrier shape. Four types of flux-barrier are discussed and compared to improve torque performance, which includes the average torque, torque ripple and cogging torque. The design process is accomplished by using finite element method (FEM). Moreover, the Taguchi...
Pedestrian detection is a challenging task due to the high variance of pedestrians and fast changing background, especially for a single in-car camera system. Traditional HOG+SVM methods have two challenges: (1) false positives and (2) processing speed. In this paper, a new pedestrian detection method using multimodal HOG for pedestrian feature extraction and kernel based Extreme Learning Machine...
This paper deduces a remarkably precise analytical formula for calculating the fundamental resonant frequency of V-shaped cantilevers using Rayleigh-Ritz method. This analytical formula, which is very convenient for MEMS sensor design, is then validated by ANSYS simulation. This formula raises a new perspective that, among all the V-shaped cantilevers, the simplest triangular cantilever can lead to...
Practical and low complexity implementation of receivers is of vital importance for the successful penetration of the ultra-wideband (UWB) technology. The role of a synchronization technique is essentially to determine the relative delay of the received signal with respect to a template signal in the receiver, and it is difficult to implement due to the ultra-fine time-resolvability of the UWB signal...
Face recognition, one of the biometric methods identifying individuals by the features of face, has attracted increasing interest and research activities over the last decade. In this paper, we proposed a two-stage face recognition scheme inspired from multiresolution perspective. The lower resolution information is derived from the chin shape, whereas the higher resolution characteristics are extracted...
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