1. Technology
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

Upscaling

By

Definition: Upscaling is a process that mathematically matches the pixel count of the output of a standard or non-hi-def signal (such as standard DVD) to the physical pixel count on an HDTV or video projector, which is typically 1280x720 (720p) or 1920x1080 (1080i or 1080p), and in a more recent development (for some TVs and video projectors available in 2012 going forward), 3840x2160 or 4096x2160 (referred to as either 2160p or 4K).

720p represents 1,280 pixels displayed across the screen horizontally and 720 pixels down the screen vertically. This arrangement yields 720 horizontal lines on the screen, which are, in turn, displayed progressively, or each line displayed following another.

1080i represents 1,920 pixels displayed across a screen horizontally and 1,080 pixels down a screen vertically. This arrangement yields 1,080 horizontal lines, which are, in turn, displayed in two successive fields of 540 lines (interlaced scan).

1080p represents 1,920 pixels displayed across a screen horizontally and 1,080 pixels down a screen vertically. This arrangement yields 1,080 horizontal lines, which are, in turn, displayed progressively.

2160p or 4K represents 3840 or 4096 pixels displayed across a screen horizontally and 2,160 pixels displayed across a screen vertically. The entire frame is displayed progressively.

For a detailed explanation on how upscaling is implemented, refer to my article: Video Upscaling.

Also, for more details on 4K resolution and upscaling issues, refer to my article: 4K Resolution - Overview and Perspective.

Also Known As: Up Scaling, Video Upscaling
  1. About.com
  2. Technology
  3. Home Theater
  4. Home Theater and AV Basics/Set-up Tips/Installation/Product Reviews
  5. Home Theater Glossary
  6. Upscaling - Home Theater Definitions

©2014 About.com. All rights reserved.