Guide to Defining Video Quality Requirements
Revised May 29, 2012
![Section 6 of 9 of step 2 -- Generalize Use Cases into Use Classes -- in the bar chart highlighing the 4-step process for definfing video quality requirements.](https://webarchive.library.unt.edu/web/20130215162526im_/http://www.pscr.gov/outreach/vqips/vqips_guide/images/02_use_classes.png)
Motion
Definition
Specifies the level of motion you anticipate in a scene of interest.
Motion example: High | Motion example: Low |
Motion can come from the target (e.g., a car driving by), the background (e.g., a large crowd), or from the camera itself moving (e.g., a dash-mounted camera in a police car). Motion affects the length of time a desired target is shown in the video frame, and can cause the target to blur. High motion can be caused by either many moving objects within the scene or a single object moving quickly.
Scene Content
![Lists motion consideration, scene, and content information.](https://webarchive.library.unt.edu/web/20130215162526im_/http://www.pscr.gov/outreach/vqips/vqips_guide/images/motion_table.png)