Mathematically, a Gaussian filter modifies the input signal by convolution with a Gaussian function; this transformation is also known as the Weierstrass...
16 KB (2,546 words) - 13:46, 29 May 2024
wavelengths. UV filters are sometimes referred to as L37 or L39 filters, depending on the wavelengths of light they filter out. For example, an L37 filter removes...
29 KB (3,523 words) - 06:28, 1 May 2024
For statistics and control theory, Kalman filtering, also known as linear quadratic estimation, is an algorithm that uses a series of measurements observed...
129 KB (20,538 words) - 09:25, 12 July 2024
filter depends on the filter design. The filter is sometimes called a high-cut filter, or treble-cut filter in audio applications. A low-pass filter is...
31 KB (4,640 words) - 09:43, 13 July 2024
The Butterworth filter is a type of signal processing filter designed to have a frequency response that is as flat as possible in the passband. It is also...
29 KB (4,190 words) - 09:49, 29 June 2024
Prototype filters are electronic filter designs that are used as a template to produce a modified filter design for a particular application. They are...
15 KB (2,573 words) - 16:32, 19 June 2024
An anti-aliasing filter (AAF) is a filter used before a signal sampler to restrict the bandwidth of a signal to satisfy the Nyquist–Shannon sampling theorem...
10 KB (1,057 words) - 10:33, 6 November 2023
Euclidean geometry, an affine transformation or affinity (from the Latin, affinis, "connected with") is a geometric transformation that preserves lines and...
27 KB (3,594 words) - 20:28, 28 March 2024
Radon transform (redirect from Filtered back projection)
(k)=ik{\widehat {f}}(k)} , we see that the filter performs an operation similar to a derivative. Roughly speaking, then, the filter makes objects more singular. A...
24 KB (3,492 words) - 18:00, 23 June 2024
Digital image processing (redirect from Filters (digital image processing))
Digital filters are used to blur and sharpen digital images. Filtering can be performed by: convolution with specifically designed kernels (filter array)...
49 KB (5,080 words) - 19:50, 17 June 2024