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General scheme of content-based image retrieval. Content-based image retrieval, also known as query by image content and content-based visual information retrieval (CBVIR), is the application of computer vision techniques to the image retrieval problem, that is, the problem of searching for digital images in large databases (see this survey [1] for a scientific overview of the CBIR field).
Name Description External Image Query Metadata Query Index Size (Estimate, Millions of Images) Organization Type License (Open/Closed) akiwi: akiwi is a semi-automatic image keywording tool using CBIR techniques.
An N × N unitary matrix (that is, a matrix V such that V † V = I, where V † is the conjugate transpose of V and I is the identity matrix) requires N 2 real parameters to be specified. 2 N − 1 of these parameters are not physically significant, because one phase can be absorbed into each quark field (both of the mass eigenstates, and of ...
Matrix theory is the branch of mathematics that focuses on the study of matrices. It was initially a sub-branch of linear algebra, but soon grew to include subjects ...
An circulant matrix takes the form = [] or the transpose of this form (by choice of notation). If each c i {\displaystyle c_{i}} is a p × p {\displaystyle p\times p} square matrix , then the n p × n p {\displaystyle np\times np} matrix C {\displaystyle C} is called a block-circulant matrix .
Thus, an matrix of complex numbers could be well represented by a matrix of real numbers. The conjugate transpose, therefore, arises very naturally as the result of simply transposing such a matrix—when viewed back again as an n × m {\displaystyle n\times m} matrix made up of complex numbers.
Central Institute for Research on Buffaloes, Hisar, a publicly funded, institute for water buffalo research.It is located 170 kilometres (110 mi) from Delhi, at Hisar in the north Indian state of Haryana.
In particle physics, the Pontecorvo–Maki–Nakagawa–Sakata matrix (PMNS matrix), Maki–Nakagawa–Sakata matrix (MNS matrix), lepton mixing matrix, or neutrino mixing matrix is a unitary [a] mixing matrix that contains information on the mismatch of quantum states of neutrinos when they propagate freely and when they take part in weak interactions.