An anti-aliasing filter is used before A/D conversion. It is a lowpass filter that removes signal components above the Nyquist frequency, thereby eliminating their sampled replicas (aliases) in the baseband. Also see: Application Note/Tutorial: Filter Basics: Anti-Aliasing The Basics of Anti-Aliasing: Using Switched-Capacitor Filters

Smoothing the edges of objects in a digital image to reduce the appearance of "stair steps". Most image-editing applications contain functions that soften the edges in an image so the aliasi [..]

An optical process that samples the edges of an image to fill in the missing areas that cause a jagged appearance. Read articles that include this term

See aliasing.

Dictionary of Internet Terms  

This is a type of filter used to limit the frequency range of an analogue signal prior to input to an ADC so that the Nyquist Frequency is not compromised and an accurate sample is created.

the technique of minimizing the distortion artifacts known as aliasing when representing a high-resolution signal at a lower resolution

Filtering of erroneous frequencies that are created during the analog to digital conversion process. (Sound/Picture)

process to smooth the edges of digital pictures to minimize pixilation.

Removing aliased effects in images. On the Internet, it most commonly refers to smoothing jagged curves in graphics that appear on a web page.

A technique of making fonts look smoother on screen by using blended colours in the pixels around the edges of letters. It fools the eye into thinking that the edges are sharper than they really are. [..]

A method of smoothing out pixels' jagged edges using software.

A technique used to smooth the transition between adjacent image areas. The removal or softening of jagged (aliased) edges by averaging or blending techniques. Aperture:

An optical process that samples the edges of an image to fill in the missing areas that cause a jagged appearance. Read articles that include this term

A process by which the edge of an object is smoothed out in a digital image to reduce the "stair-case" effect.

A programming technique (or hardware capability) that automatically smoothes jaggy edges, and is often used for making low-resolution images look more attractive.

<computer graphics> A technique used on a grey-scale or colour bitmap display to make diagonal edges appear smoother by setting pixels near the edge to intermediate colours according to where the edge crosses them. The most common example is black characters on a white background. Without anti-aliasing, diagonal edges appear jagged, like stai [..]

Smoothing the jagged appearance of diagonal lines in a bitmapped image. The pixels that surround the edges of the line are changed to varying shades of gray or color in order to blend the sharp edge into the background. This technique is also called &quot;dithering.&quot;

any technique that reduces aliasing