Vector quantization (VQ) is a classical quantization technique from signal processing that allows the modeling of probability density functions by the...
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Pyramid vector quantization (PVQ) is a method used in audio and video codecs to quantize and transmit unit vectors, i.e. vectors whose magnitudes are known...
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Cuboctahedron (redirect from Vector equilibrium)
; Krichever, I.; Ogievetsky, O.; Shlosman, S. (eds.). Integrability, Quantization, and Geometry: II. Quantum Theories and Algebraic Geometry. American...
19 KB (1,938 words) - 01:53, 9 October 2024
Society, retrieved 2011-02-16 Fischer, Thomas R. (July 1986), "A pyramid vector quantizer", IEEE Transactions on Information Theory, vol. 32, no. 4, pp. 568–583...
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practice of data compression, including trellis coded quantization and pyramid vector quantization 1996 Peter Grant For contributions to surface acoustic...
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methods, using Markov fields, non-parametric sampling, tree-structured vector quantization and image analogies are some of the simplest and most successful...
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of vectors, one for each patch. The vectors can only come from a discrete set of "codebook", as in vector quantization. Another encodes the quantized vectors...
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candidate matching features based on Euclidean distance of their feature vectors. From the full set of matches, subsets of keypoints that agree on the object...
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Neural coding (redirect from Vector coding (neuroscience))
decoding Neural oscillation Receptive field Sparse distributed memory Vector quantization Brown EN, Kass RE, Mitra PP (May 2004). "Multiple neural spike train...
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preserving spread Mean reciprocal rank Mean signed difference Mean square quantization error Mean square weighted deviation Mean squared error Mean squared...
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point P {\displaystyle P} on the line, the vector P − P 0 {\displaystyle P-P_{0}} must be orthogonal to the vector P 0 − 0 = P 0 {\displaystyle P_{0}-0=P_{0}}...
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by assigning a matrix to each wave vector in the Brillouin zone. Mathematically, this assignment creates a vector bundle. Different materials will have...
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coding, lossy compression, lossless compression Encoding operations — quantization, perceptual weighting, entropy encoding, variable bitrate encoding Digital...
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lossy, still image transmission. He contributed to the study of vector quantization for lossy image compression and developed a number of hierarchical...
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(\cdot )^{\text{T}}} denotes transpose operation, turning a row vector to a column vector, the matrix S 0 {\displaystyle S_{0}} can be written as the matrix...
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PMID 20634557. S2CID 3198903. Gong, Yunchao, and Svetlana Lazebnik. "Iterative quantization: A procrustean approach to learning binary codes." Computer Vision and...
105 KB (6,552 words) - 17:19, 18 October 2024
4-coordinate point (w,x,y,z) is a vector in 4D space from (0,0,0,0). Four-dimensional real space is a vector space: any two vectors can be added or multiplied...
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corner-sharing tetrahedral lattice with spins fixed along the local quantization axis, the <111> cubic axes, which coincide with the lines connecting...
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orientations with respect to the molecular rotational angular momentum vector, N, so that each rotational level is split into three states with total...
49 KB (6,786 words) - 17:46, 28 June 2024
triangles and side-ratios are studied in Egypt for the construction of pyramids, paving the way for the field of trigonometry. Early 2nd millennium BC:...
91 KB (10,369 words) - 15:49, 2 November 2024