Which Video Conveys More Information?

Videos also have high or low resolution. (Sometimes people use the word definition when they refer to the resolution of videos; resolution and definition mean the same thing.)

The videos below show tennis pros Venus and Serena Williams on the court. Resolution matters in sports videos because small details are important to fans.

For example, which kinds of details would help you see clearly whether the ball drops inside the white line (meaning the ball is still in bounds)? Are such details easy to see in both formats?

Video Resolution

Standard definition, or SD, is 640 pixels by 480 pixels (or lower).
High definition, or HD, is generally 1,920 pixels by 1,080 pixels.
4K is 4,096 pixels by 2,160 pixels.

Keyboard Shortcut	Action
Space	Pause/Play video playback
Enter	Pause/Play video playback
m	Mute/Unmute video volume
Up and Down arrows	Increase and decrease volume by 10%
Right and Left arrows	Seek forward or backward by 5 seconds
0-9	Fast seek to x% of the video.
f	Enter or exit fullscreen. (Note: To exit fullscreen in flash press the Esc key.
c	Press c to toggle captions on or off

Keyboard Shortcut	Action
Space	Pause/Play video playback
Enter	Pause/Play video playback
m	Mute/Unmute video volume
Up and Down arrows	Increase and decrease volume by 10%
Right and Left arrows	Seek forward or backward by 5 seconds
0-9	Fast seek to x% of the video.
f	Enter or exit fullscreen. (Note: To exit fullscreen in flash press the Esc key.
c	Press c to toggle captions on or off