Results 151 to 160 of about 2,313 (171)
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Background subtraction based on circulant matrix
Signal, Image and Video Processing, 2016Detecting moving objects in a scene is a fundamental and critical step for many high-level computer vision tasks. However, background subtraction modeling is still an open and challenge problem, particularly in practical scenarios with drastic illumination changes and dynamic backgrounds.
Jianfang Dou, Qin Qin, Zimei Tu
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Circulating matrix metalloproteinases and their inhibitors in hypertension
Clinica Chimica Acta, 2012Growing experimental evidence indicates that matrix metalloproteinases (MMPs) are implicated in many cardiovascular diseases including hypertension and its chronic complications. It is now clear that MMPs have many more substrates other than components of the extracellular matrix.
Vanessa, Fontana +3 more
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Low-Rank Approximation of Circulant Matrix to a Noisy Matrix
Arabian Journal for Science and Engineering, 2021This paper constructs structured circulant positive semi-definite matrix that is nearest to a given data matrix. The problem arises in various applications since the matrix formed from the data collected does not maintain either the desirable rank or specified structure as is expected.
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A matrix model of circulation control
Information Processing & Management, 1991Abstract In this paper, a general abstract model of circulation control systems having utility in practical implementations is discussed. Specifically addressed are the pragmatic issues involved in the implementation of a matrix model using an orthogonal list data structure for very large arrays. Implications for file locking are also discussed.
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Aggregated Circulant Matrix Based LDPC Codes
2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006This paper presents a variation of circulant matrix based LDPC codes which allows more than one circulant identity matrix in a submatrix of the parity check matrix. The aggregated LDPC supports higher decoding throughput with small increase in datapath complexity. The construction algorithm, bit error rate (BER) performance, information update rule and
Yuming Zhu, Chaitali Chakrabarti
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The Product of a Circulant Matrix and a Special Diagonal Matrix
The American Mathematical Monthly, 1932(1932). The Product of a Circulant Matrix and a Special Diagonal Matrix. The American Mathematical Monthly: Vol. 39, No. 5, pp. 280-285.
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The Product of a Circulant Matrix and a Special Diagonal Matrix
The American Mathematical Monthly, 1933(1933). The Product of a Circulant Matrix and a Special Diagonal Matrix. The American Mathematical Monthly: Vol. 40, No. 1, pp. 23-25.
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Impedance matrix formulation of stripline circulators
Canadian Electrical Engineering Journal, 1980In a 3-port stripline circulator, the choice of a dielectric loading is necessary to broaden bandwidth. Impedance matrix formulation enables one to study an externally-tuned circulator. A shunt capacitor at each port may increase the bandwidth or decrease the circulation frequency according to the ratio k/μ where k and μ are parameters of the tensor ...
Ali M. Hussein +2 more
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Scattering matrix analysis of a gyrator circulator †
International Journal of Electronics, 1973Abstract The principle of operation of the gyrator circulator has been explained with the help of a scattering matrix. It is shown that power flow can take place from port A to B, B to C and so on, i.e. in one particular sequence. It has also been proved that there is no cross coupling of power.
LAXMAN PRASAD, R. K. JHA
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Efficient algorithm for finding the inverse and the group inverse of FLSr-circulant matrix
Journal of Applied Mathematics and Computing, 2005Zong-Ben Xu, Xu Zong-Ben
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