Nili Tian

Guangdong University of Technology

6Publications

1H-index

12Citations

Publications 6

Newest

#1Nili Tian (GDUT: Guangdong University of Technology)H-Index: 1

#2Bingo Wing-Kuen Ling (GDUT: Guangdong University of Technology)H-Index: 18

Last.Kok Lay Teo (Curtin University)H-Index: 48

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The main problem to be addressed in this paper is on the high required computational powers of the existing fractional pixel location search algorithms. The current solution method is based on the computation of the phase shift of the power spectral densities of two consecutive frames of a video sequence. Since the probability density function of each frame of the video sequence is required for computing its power spectral density but it is unknown in the practical situation, this method is not ...

#1Qing Pan (GDUT: Guangdong University of Technology)

#2Chao Mei (GDUT: Guangdong University of Technology)

Last.Zhijing Yang (GDUT: Guangdong University of Technology)H-Index: 8

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In order to address the problem of achieving the poor performance of a single-channel receiver operated at a low signal-to-noise ratio (SNR) based on the existing source number estimation method, an effective source enumeration approach for the single-channel receiver operated at a low SNR is proposed in this paper. The proposed method is based on the empirical mode decomposition (EMD) with the auto-correlation coefficient matrix (ACCM) and the jackknifing method. First, the received single-chan...

#1Qing Pan (GDUT: Guangdong University of Technology)

#2Chao Mei (GDUT: Guangdong University of Technology)

Last.Everett Wang (GDUT: Guangdong University of Technology)H-Index: 4

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The performance of the source enumeration with the uniform circular array (UCA) is deteriorated considerably by the colored noise. This effect becomes more obvious especially when the total number of the sources is lower and closed to that of the array sensors. To address this problem, this paper proposes a source enumeration modeling based on a UCA having M antennas ( M -UCA). The M -UCA is operated in a narrow band far field environment with the arbitrary azimuth and elevation angles. First, t...

Camera identification based on very low bit rate videos with overall noise pattern having time varying statistics

#1Nili Tian (GDUT: Guangdong University of Technology)H-Index: 1

#2Bingo Wing-Kuen Ling (GDUT: Guangdong University of Technology)H-Index: 5

Last.Zhijing Yang (GDUT: Guangdong University of Technology)H-Index: 8

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This paper proposes a method for performing the camera identification based on very low bit rate videos with the overall noise patterns having time varying statistics. First, the overall noise pattern of each frame of each video is converted to a vector. Then, the odd order statistic moments of these vectors are computed. By performing the principal component analysis, only the most major component of each statistic moment vector is attained. These components of all the frames form a feature vec...

#1Nili Tian (GDUT: Guangdong University of Technology)H-Index: 1

#2Xiao-Zhi Zhang (University of South China)H-Index: 2

Last.Zhijing Yang (GDUT: Guangdong University of Technology)H-Index: 8

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This paper proposes a novel content removal technique for enhancing the camera identification performance. Here, very low bit rate videos with the overall noise patterns having time-varying statistics are considered. First, different two-dimensional discrete fractional Fourier transforms with different rotational angles are applied to the overall noise pattern of each frame of each video. Second, the modulus of each element of each transformed matrix is normalized to one if the rotational angles...

#1Bingo Wing-Kuen Ling (GDUT: Guangdong University of Technology)H-Index: 18

#2Nili Tian (GDUT: Guangdong University of Technology)H-Index: 1

Last.Qingyun Dai (GDUT: Guangdong University of Technology)H-Index: 5

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A necessary and sufficient condition for M-channel maximally decimated paraunitary FIR filter banks is derived when the lengths of all the filters are the same and they are integer multiples of M. Based on the derived condition, a family of this kind of filter banks is defined. These results are also applied to the corresponding linear phase filter banks. Then, the design of this type of filter banks with the linear phase property is formulated as two orthogonal Procrustes optimization problems....

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