• Thumbnail for Point spread function
    The point spread function (PSF) describes the response of a focused optical imaging system to a point source or point object. A more general term for...
    24 KB (3,269 words) - 15:47, 8 May 2025
  • Thumbnail for Optical transfer function
    transfer function is defined as the Fourier transform of the point spread function (PSF, that is, the impulse response of the optics, the image of a point source)...
    43 KB (5,682 words) - 18:33, 23 July 2025
  • function in this case is typically referred to as a point spread function, since the mathematical point of light in the object plane has been spread out...
    73 KB (12,531 words) - 10:55, 4 August 2025
  • background part. In contrast, a confocal microscope uses point illumination (see Point Spread Function) and a pinhole in an optically conjugate plane in front...
    45 KB (5,265 words) - 13:57, 2 June 2025
  • Thumbnail for Airy disk
    human eye is about 2.1, corresponding to a diffraction-limited point spread function with approximately 1 μm diameter. However, at this f-number, spherical...
    31 KB (4,806 words) - 08:31, 24 May 2025
  • like symmetric round spots. The spot width is equivalent to the point spread function (~ 250 nm) and is defined by the microscope resolution. Lateral...
    92 KB (10,673 words) - 15:19, 27 June 2025
  • Thumbnail for Richardson–Lucy deconvolution
    recovering an underlying image that has been blurred by a known point spread function. It was named after William Richardson and Leon B. Lucy, who described...
    13 KB (2,155 words) - 07:44, 28 April 2025
  • Thumbnail for Deconvolution
    with a point spread function (PSF), that is, a mathematical function that describes the distortion in terms of the pathway a theoretical point source...
    16 KB (1,971 words) - 02:33, 8 July 2025
  • optical transfer function is the Fourier transform of the point spread function (a function of spatial frequency). Transfer functions are commonly used...
    15 KB (2,498 words) - 06:36, 5 May 2025
  • Thumbnail for Microscopy
    an "hourglass" shape of this point source in the third (axial) dimension. This shape is called the point spread function (PSF) of the microscope imaging...
    69 KB (8,287 words) - 09:36, 27 July 2025
  • a point spread function (PSF) weighted within a solid angle larger than the pixel. From a signal processing point of view, ignoring the point spread function...
    5 KB (756 words) - 02:05, 2 June 2024
  • {\displaystyle FS} is a convolution of V {\displaystyle V} and a point spread function (PSF): V ∗ P S F = F S . {\displaystyle V*PSF=FS.} Thus, the 3D...
    29 KB (5,024 words) - 09:35, 13 June 2025
  • Thumbnail for Angular resolution
    between diffraction and aberration can be characterised by the point spread function (PSF). The narrower the aperture of a lens the more likely the PSF...
    20 KB (2,381 words) - 20:46, 9 July 2025
  • Thumbnail for Diffraction-limited system
    the point spread functions (PSF). The point spread function of a diffraction limited circular-aperture lens is simply the Airy disk. The point spread function...
    21 KB (2,775 words) - 14:43, 16 July 2025
  • of the point-spread function by a single number, as the Strehl Ratio does, will be meaningful and sensible only if the point-spread function is little...
    9 KB (1,205 words) - 15:33, 26 June 2025
  • pupil function is also directly related to the point spread function by its Fourier transform. As such, the effect of aberrations on the point spread function...
    5 KB (832 words) - 09:37, 8 April 2025
  • Thumbnail for Deblurring
    point spread function and is convolved with a hypothetical sharp image S to get B, where both the S (which is to be recovered) and the point spread function...
    3 KB (324 words) - 06:29, 26 October 2023
  • Thumbnail for Impulse response
    response Gibbs phenomenon Küssner effect Linear response function LTI system theory Point spread function Pre-echo Step response System analysis Time constant...
    10 KB (1,211 words) - 21:36, 25 May 2025
  • Thumbnail for Lucky imaging
    but generally produces multiple sharp copies of the image (the point spread function has speckles). New methods were used which took advantage of this...
    17 KB (1,830 words) - 13:13, 12 July 2025
  • Thumbnail for Arago spot
    point source. From an extended source the Arago spot is only affected marginally, since one can interpret the Arago spot as a point-spread function....
    34 KB (4,322 words) - 18:11, 29 July 2025
  • a point spread function (PSF) to sample the original signal. As such, image resolution is highly dependent on the number of detectors and the point spread...
    30 KB (3,826 words) - 00:42, 31 May 2025
  • Thumbnail for Surface brightness fluctuation
    subtracted. The SBF pattern is evident as the transform of the point spread function in the Fourier domain. The amplitude of the spectrum gives the luminosity...
    5 KB (560 words) - 07:53, 20 February 2025
  • progressive scan video using interlaced equipment Point spread function, the response of an imaging system to a point source Protein Segment Finder, a search engine...
    2 KB (307 words) - 15:42, 20 October 2024
  • accurately reconstruct point spread functions, whose wings cannot be accurately portrayed by either a Gaussian or Lorentzian function. The Moffat distribution...
    2 KB (302 words) - 16:29, 2 June 2025
  • Thumbnail for Gravitational lens
    error: the intrinsic shape of galaxies, the tendency of a camera's point spread function to distort the shape of a galaxy and the tendency of atmospheric...
    52 KB (5,745 words) - 14:05, 4 August 2025
  • point sources. It will iteratively find the highest value in the image and subtract a small gain of this point source convolved with the point spread...
    3 KB (321 words) - 09:33, 4 June 2025
  • Thumbnail for Optical microscope
    illumination microscopy) is a light optical process of the so-called point spread function (PSF) engineering. These are processes which modify the PSF of a...
    53 KB (6,134 words) - 19:44, 27 June 2025
  • image of a point source observed under a microscope is an extended spot, corresponding to the Airy disk (a section of the point spread function) of the imaging...
    27 KB (3,213 words) - 00:39, 31 May 2025
  • giving the smallest image possible with that given lens (called a point spread function or PSF), calculation of the encircled energy of the resulting image...
    2 KB (322 words) - 01:37, 24 October 2023
  • Thumbnail for Electron-beam lithography
    Vol. 8683. p. 868311. doi:10.1117/12.2008886. The Significance of Point Spread Functions with Stochastic Behavior in Electron-Beam Lithography Ichimura,...
    38 KB (4,747 words) - 00:52, 29 July 2025