Aliasing in a sentence

I do find that much of an upscale -- from 1440p to 4K -- ends up looking oversharpened, with concomitant aliasing (rolling edges) on thin lines that I can never unsee.

Aliasing is the use of multiple names for the same data location.

Aliasing main seeAlso An ADC works by sampling the value of the input at discrete intervals in time.

Aliasing main The samples of two sine waves can be identical, when at least one of them is at a frequency above half the sample rate.

Although aliasing in most systems is unwanted, it should also be noted that it can be exploited to provide simultaneous down-mixing of a band-limited high frequency signal (see undersampling and frequency mixer ).

Anti-aliasing smooths out jagged lines by surrounding the jaggies with transparent pixels to simulate the appearance of fractionally-filled pixels.

Cameras that use a beam-splitter single-shot 3CCD approach, three-filter multi-shot approach, color co-site sampling or Foveon X3 sensor do not use anti-aliasing filters, nor demosaicing.

ClearType uses spatial anti-aliasing at the subpixel level to reduce visible artifacts on such displays when text is rendered, making the text appear "smoother" and less jagged.

Converting outlines requires filling them in; converting to bitmaps is not trivial, because bitmaps often don't have sufficient resolution to avoid "stairstepping" ("aliasing"), especially with smaller visible character sizes.

Decreasing N, causes overlap (adding) in the time-domain (analogous to aliasing ), which corresponds to decimation in the frequency domain.

Filter mosaics, interpolation, and aliasing The Bayer arrangement of color filters on the pixel array of an image sensor.

Furthermore, as any aliased signals are also typically out of band, aliasing can often be completely eliminated using very low cost filters.

However, this solution may create undesirable aliasing artifacts wherever two elements overlap the same pixel.

If a naive rendering algorithm is used without any filtering, high frequencies in the image function will cause ugly aliasing to be present in the final image.

If frequencies above half the Nyquist rate are sampled, they are incorrectly detected as lower frequencies, a process referred to as aliasing.

In applications where protection against aliasing is essential, oversampling may be used to greatly reduce or even eliminate it.

In realtime computer graphics, especially gaming, anti-aliasing is used to remove jaggies created by the edges of polygons and other lines entirely.

In some systems, such as the Digital Light Processing (DLP) system, there is no flying spot or raster scan at all, so there is no flicker other than that generated by the temporal aliasing of the film image capture.

It is mathematically equivalent to the aliasing of a signal that is sampled at discrete intervals.

Jaggies in bitmaps, such as sprites and surface materials, are most often dealt with by separate texture filtering routines, which are far easier to perform than anti-aliasing filtering.