• h-maxima transform is a morphological operation used to filter local maxima of an image based on local contrast information. First, all local maxima are...
    933 bytes (135 words) - 00:20, 28 April 2024
  • Thumbnail for Mathematical morphology
    = f ( x ) ∨ g ( x ) {\displaystyle (f\vee g)(x)=f(x)\vee g(x)} . H-maxima transform Map algebra "International Symposium on Mathematical Morphology and...
    23 KB (3,307 words) - 09:17, 20 July 2025
  • obtained as local maxima in a so-called accumulator space that is explicitly constructed by the algorithm for computing the Hough transform. Mathematically...
    34 KB (4,859 words) - 16:20, 29 March 2025
  • Thumbnail for Hadamard transform
    Hadamard transform (also known as the Walsh–Hadamard transform, Hadamard–Rademacher–Walsh transform, Walsh transform, or Walsh–Fourier transform) is an...
    32 KB (4,745 words) - 16:18, 5 July 2025
  • parameter space and then selecting local maxima in an accumulator matrix. It is a specialization of the Hough transform. In a two-dimensional space, a circle...
    8 KB (1,182 words) - 15:55, 21 January 2025
  • Thumbnail for Fourier-transform infrared spectroscopy
    uses the maxima of the absorbance band at about 5,200 cm−1 which correlates with the true water content in the material. Discrete Fourier transform – Function...
    37 KB (4,802 words) - 00:54, 11 July 2025
  • The generalized Hough transform (GHT), introduced by Dana H. Ballard in 1981, is the modification of the Hough transform using the principle of template...
    16 KB (2,327 words) - 08:49, 27 May 2025
  • The Hilbert–Huang transform (HHT) is a way to decompose a signal into so-called intrinsic mode functions (IMF) along with a trend, and obtain instantaneous...
    51 KB (6,197 words) - 19:58, 20 July 2025
  • The wavelet transform modulus maxima (WTMM) is a method for detecting the fractal dimension of a signal. More than this, the WTMM is capable of partitioning...
    6 KB (817 words) - 05:20, 31 July 2024
  • series of maxima and minima. There are regularly spaced "principal maxima", and a number of much smaller maxima in between the principal maxima. The principal...
    34 KB (6,005 words) - 18:34, 22 July 2025
  • Hough transform [H theta rho] = hough(BW); % Find local maxima of Hough transform numpeaks = 19; thresh = ceil(0.1 * max(H(:))); P = houghpeaks(H, numpeaks...
    18 KB (2,031 words) - 02:05, 22 January 2025
  • The scale-invariant feature transform (SIFT) is a computer vision algorithm to detect, describe, and match local features in images, invented by David...
    69 KB (9,260 words) - 12:29, 12 July 2025
  • Thumbnail for Comb filter
    {3\pi }{K}},{\frac {5\pi }{K}}\cdots \,\end{aligned}}} The levels of the maxima and minima are always equidistant from 1. When α = ± 1 , {\displaystyle...
    13 KB (1,805 words) - 13:24, 19 July 2025
  • Thumbnail for Stéphane Mallat
    Stéphane Mallat (category Articles with hCards)
    (with Sifen Zhong) the wavelet transform modulus maxima method for image characterization, a method that uses the local maxima of the wavelet coefficients...
    5 KB (379 words) - 08:50, 21 November 2024
  • (ii) methods based on local extrema, which are based on finding the local maxima and minima of the function. With the more recent terminology used in the...
    28 KB (4,107 words) - 06:23, 15 July 2025
  • Thumbnail for Grating lobes
    180^{\circ }} . From the definition of ψ {\displaystyle \psi } , we see that maxima will occur whenever 2 π n = 2 π λ d × ( cos ⁡ θ − cos ⁡ θ T ) {\displaystyle...
    6 KB (1,065 words) - 17:36, 6 June 2025
  • the method of Lagrange multipliers is a strategy for finding the local maxima and minima of a function subject to equation constraints (i.e., subject...
    55 KB (8,403 words) - 14:27, 23 July 2025
  • reconstruction. It is partly inspired by the scale-invariant feature transform (SIFT) descriptor. The standard version of SURF is several times faster...
    11 KB (1,623 words) - 21:13, 6 June 2025
  • Thumbnail for Spectral line shape
    side of the line centre. Component peak maxima in the spectrum are minima in the 2nd. derivative spectrum and maxima in the 4th. derivative spectrum Hollas...
    25 KB (2,986 words) - 13:06, 24 May 2025
  • Thumbnail for Diffraction
    individual amplitudes. Hence, diffraction patterns usually have a series of maxima and minima. In the modern quantum mechanical understanding of light propagation...
    52 KB (6,614 words) - 17:52, 23 July 2025
  • Thumbnail for Small caps
    preferred for book printing. Fonts in Use reports that Gert Wunderlich's Maxima (1970), for Typoart, was "maybe the first sans serif to feature small caps...
    32 KB (3,260 words) - 08:42, 26 July 2025
  • Thumbnail for Beta distribution
    Whether a singularity can ever be called a mode Whether cases with two maxima should be called bimodal The median of the beta distribution is the unique...
    245 KB (40,559 words) - 20:35, 30 June 2025
  • Thumbnail for Parks–McClellan filter design algorithm
    function E(ω) over the entire set of frequencies Ω using (2). Look for local maxima of |E(m)(ω)| on the set Ω. If max(ω∈Ω)|E(m)(ω)| > δ(m), then update the...
    14 KB (1,798 words) - 19:43, 13 December 2024
  • Thumbnail for Sinc function
    crossings of the normalized sinc occur at non-zero integers. The local maxima and minima of the unnormalized sinc correspond to its intersections with...
    23 KB (3,296 words) - 04:48, 12 July 2025
  • Thumbnail for Pumpkin
    some cultivars of Cucurbita argyrosperma, Cucurbita ficifolia, Cucurbita maxima, Cucurbita moschata, and Cucurbita pepo. C. pepo pumpkins are among the...
    55 KB (4,437 words) - 08:52, 12 July 2025
  • Thumbnail for Extreme value theory
    deriving block maxima (minima) series as a preliminary step. In many situations it is customary and convenient to extract the annual maxima (minima), generating...
    29 KB (2,872 words) - 09:08, 19 July 2025
  • Thumbnail for Chiral model
    realized nonlinearly on the triplet of pions – which, however, still transform linearly under isospin   SU ( 2 ) V ≃ SO ( 3 )   {\displaystyle \...
    20 KB (3,269 words) - 17:39, 18 May 2025
  • et minimam (a Latin treatise circulated in France c. 1636 ) to calculate maxima and minima of functions, tangents to curves, area, center of mass, least...
    17 KB (2,411 words) - 02:25, 28 May 2025
  • such as the gradient magnitude, and then searching for local directional maxima of the gradient magnitude using a computed estimate of the local orientation...
    36 KB (5,163 words) - 02:49, 30 June 2025
  • the Hilbert transform of the simple functions 1(−1,1)(x) and 1(0,1)(x) − 1(0,1)(−x). We can show, however, that ( H f ) 2 = f 2 + 2 H ( f H f ) {\displaystyle...
    39 KB (6,116 words) - 16:44, 27 March 2025