Institute for Telecommunication Sciences / Research / Video Quality Research / Guides and Tutorials / Video Resources / Tools for Video Quality in Public Safety / Guide to Defining Video Quality Requirements / Generalized Use Class Aspects / VQiPS Lighting Level

VQiPS Lighting Level

1. Identify
2. Generalize
3. Understand
4. Match
Recommendations

Definition

Specifies the level of lighting you anticipate in a scene of interest.


Lighting example: Bright
Task: Facial Recognition.

Lighting levels can vary from very dark (nighttime, indoors) to very bright (daylight, spotlight), affecting the ability of the camera to capture the image.


Lighting example: Dim
Task: Facial Recognition.

The presence of both very bright areas and very dark areas in the frame simultaneously is known as high dynamic range, and can impair target recognition, as the next example shows.


Lighting example: Variable
Task: Facial Recognition.

Lighting level is an obvious aspect that impacts selection of video equipment and refers to light available to illuminate the scene of interest.

Scene Content

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