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VQiPS: Lighting Level

Guide to Defining Video Quality Requirements

| Getting Started | Use Cases | Use Classes | GUC Aspects | Usage Timeframe | Discrimination Level | Target Size | Motion | Lighting Level | GUC Questionnaire |

VQiPS: Use Classes

Lighting Level

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

Lighting Bright: Facial Recognition
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 Dim: Facial Recognition
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 Variable: Facial Recognition
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
Consider: What level of lighting do you anticipate in a scene of interest?

Scene Lighting LevelContent
Constant Lighting - BrightAt a comparatively bright level
Constant Lighting - DimAt a comparatively dim level
VariableRanges from bright to dim

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Created September 30, 2016, Updated December 5, 2016