Which of the following is the process of converting a video signal from one resolution to another?

Scaling is the process of converting a video signal from one resolution to another. This involves resizing the video image, which can either increase or decrease the number of pixels in the display. When scaling a video signal, the system must interpolate the pixel information to ensure that the image remains clear and visually appealing at the new resolution. This is crucial in various AV applications to ensure compatibility with different display devices that may support varying resolutions.

For instance, when you take a high-definition video and display it on a standard-definition screen, scaling is employed to adjust the video accordingly. The result is a properly formatted video that maintains as much visual integrity as possible despite the resolution difference. Scaling techniques vary, and they can include methods like upscaling, where lower resolution video is rendered at a higher resolution, and downscaling, where higher resolution video is rendered at a lower resolution. Understanding scaling is essential for anyone involved in AV systems design and implementation, as it plays a key role in maintaining video quality across diverse devices and settings.