What is the difference between resolution and frame rate in video?

Video Resolution and Frame Rate: Key Differences

  • Resolution determines the level of detail in a video, measured in pixels (width x height).

    • A higher resolution means more pixels, providing sharper, more detailed images.
    • Common resolutions include 720p (1280x720), 1080p (1920x1080), and 4K (3840x2160).
    • Resolution is a measure of spatial quality; it affects how much detail you can see in a single frame.
  • Frame Rate dictates the smoothness of motion in a video, measured in frames per second (fps).

    • A higher frame rate means more individual images are displayed in one second, creating smoother motion.
    • Common frame rates are 24, 30, and 60 fps.
    • Frame rate is a measure of temporal quality; it affects how smooth moving objects appear.

In essence, resolution impacts the detail you see in a single moment, while frame rate influences how smoothly motion is portrayed over time. For example, a video could be 1080p (high resolution) but only 24 fps (jittery motion), or 720p (lower resolution) but 60 fps (smooth motion).