In this feature on the nature of analog and digital signals, DSP consultant Nalin Pithwa starts with an excerpt from the cruise of the Revolution to introduce the concepts of analog-to-digital ...

In part 1, we started to make some intuitive connections between near-Nyquist sampling, the addition of close-frequency sines, and how those signals would interact with perfect LP filters. Let's put ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. With the growing use of multiple video formats, a fundamental understanding of sampling rate ...

Primer on Nyquist and aliasing applied to the design of input filters for ADCs. Sampling a signal causes the original signal spectrum (blue) to create sum (purple) and difference (red) frequencies ...

The old-fashioned method of antialiasing is called super sampling. An image that is 800x600 is upscaled by, for example, 4 times, to make an image that is 1600x1200 inside the graphics processor. Each ...

A research team at POSTECH has developed a novel multidimensional sampling theory to overcome the limitations of flat optics.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. One of the fundamental processes involving digital signals is sampling. When sampling video and ...

(1) Smoothing a distorted communications signal by applying techniques that add data or filter out unwanted noise. (2) Smoothing the jagged appearance of diagonal lines in a bitmapped image. The ...

Prev 1 - Displays 2 - Anti-Aliasing 3 - Super-sampling and Multi-sampling 4 - Anisotropic Filtering 5 - Example: Half-Life 2 6 - Conclusions Next Anti-aliasing, then, is a method of making images look ...

Anti-aliasing smooths the raw and haggard edges on digital type and images on computer and handheld displays, wireless phones, printers, even digital cameras. Aliasing – jagged or stair-stepped edges ...