Video upscaling is a process that enhances the resolution of a video, making it appear clearer and more detailed on higher-resolution displays. This technique takes a lower-resolution video, such as 720p, and increases its pixel count to match a higher resolution, like 1080p or 4K. Upscaling can improve the viewing experience, especially on large screens. There are various methods for video upscaling, including bilinear, bicubic, and more advanced techniques like AI-based upscaling. These methods analyze the original video and generate new pixels to fill in the gaps, aiming to maintain image quality while increasing resolution.