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Localization of a viewer's region of interest (ROI) on eye gaze signal trajectories acquired by eye trackers is a widely used approach in scene analysis, image compression, and quality of experience assessment. In this paper, we propose a novel clustering approach for ROI estimation from potentially noisy raw eye gaze data, based on signal processing on graphs. The clustering approach adapts graph...
Lower time-frequency resolution is caused by Smoothed pseudo Wigner-Ville distribution (SPWVD) in suppressing cross-terms interference, which limits its application in the processing of the non-stationary vibration signals. This paper proposes a novel fractional-order smoothed pseudo Wigner-Ville distribution (FrSPWVD) to solve the above problem. The details about step of the calculation are as follows:...
This paper proposes a 3D panning method based on particle velocity and sound pressure by four loudspeakers for synthesizing a virtual sound source. Firstly, according to the requirements of maintaining sound physical properties strictly, the distribution coefficients of four loudspeakers are calculated by the coordinates of four loudspeakers and a virtual sound source. If the distribution coefficients...
An efficient technique using the fast Fourier transform, sum algorithm in combination with the finite-difference time-domain (FDTD) method is proposed for the full-wave analysis of fin-line. In modelling the fin-line, substrate dielectric is treated as a complex permittivity dielectric. Cut-off wavelength, effective dielectric constant, propagation constant and attenuation constant are presented....
A novel method to analyze UWB signal is presented in this paper, namely amplitude probability frequency distribution (APFD). Unlike FT and APD methods that only depict some characteristics of UWB signal in a certain domain, the APFD method proposed in this paper can portray the characteristics of UWB signal from three dimensions space. Neither like STFT method that only observes how the PSD varies...
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