Upscaling
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Upscaling is the process of creating a high-resolution image from a low-resolution image.
Scaling
Enlargens the available pixels (details) to fit the screen
Video looks fuzzy on larger screens
Uses basic maths to enlarge the video, irrespective of detail
Upscaling
Creates more pixels (details) to fit the screen
Video looks clearer, crisper on larger screens
Uses artificial intelligence (AI) to fill in details based on previous frames and learned algorithms from other videos