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  2. Pyramid (image processing) - Wikipedia

    en.wikipedia.org/wiki/Pyramid_(image_processing)

    Pyramid, or pyramid representation, is a type of multi-scale signal representation developed by the computer vision, image processing and signal processing communities, in which a signal or an image is subject to repeated smoothing and subsampling. Pyramid representation is a predecessor to scale-space representation and multiresolution analysis.

  3. Template matching - Wikipedia

    en.wikipedia.org/wiki/Template_matching

    This pre-processing method creates a multi-scale, or pyramid, representation of images, providing a reduced search window of data points within a search image so that the template does not have to be compared with every viable data point. Pyramid representations are a method of dimensionality reduction, a common aim of machine learning on data ...

  4. Flash photolysis - Wikipedia

    en.wikipedia.org/wiki/Flash_photolysis

    Flash photolysis is a pump-probe laboratory technique, in which a sample is first excited by a strong pulse of light from a pulsed laser of nanosecond, picosecond, or femtosecond pulse width or by another short-pulse light source such as a flash lamp.

  5. Contourlet - Wikipedia

    en.wikipedia.org/wiki/Contourlet

    Contourlet transform double filter bank. The contourlet transform uses a double filter bank structure to get the smooth contours of images. In this double filter bank, the Laplacian pyramid (LP) is first used to capture the point discontinuities, and then a directional filter bank (DFB) is used to form those point discontinuities into linear structures.

  6. Stroboscopic effect - Wikipedia

    en.wikipedia.org/wiki/Stroboscopic_effect

    Depending on the frequency of flash, the element appears motionless or rotating in reverse direction. The stroboscopic effect is a visual phenomenon caused by aliasing that occurs when continuous rotational or other cyclic motion is represented by a series of short or instantaneous samples (as opposed to a continuous view) at a sampling rate ...

  7. DIKW pyramid - Wikipedia

    en.wikipedia.org/wiki/DIKW_Pyramid

    A standard representation of the pyramid form of DIKW models, from 2007 and earlier. [1] [2]The DIKW pyramid, also known variously as the knowledge pyramid, knowledge hierarchy, information hierarchy, [1]: 163 DIKW hierarchy, wisdom hierarchy, data pyramid, and information pyramid, [citation needed] sometimes also stylized as a chain, [3]: 15 [4] refer to models of possible structural and ...

  8. Scholars have spent decades delving into what techniques the builders used to position the pyramid’s so they face almost absolute north, south, east & west. Giza pyramid’s nearly perfect ...

  9. Direct-access storage device - Wikipedia

    en.wikipedia.org/wiki/Direct-access_storage_device

    Basic partitioned access method (BPAM) Basic direct access method (BDAM) Virtual storage access method (VSAM) Execute Channel Program (EXCP) Execute Channel Program in Real Storage (EXCPVR) In MVS, starting with OS/VS2 Release 2 and continuing through z/OS, all of the access methods including EXCP[VR], use the privileged STARTIO macro.