0053B - Video Upscaling
v1.0
published
0053B
v1.0
VIDEO UPSCALING
Required / Expected Resolution
General Image Resolution
Resolution Threshold
Severity, Resolution over Time
https://qc.ebu.io/items/0053B/versions/1-0-0/
Check
Report
Summary
- EBU QC Id
- 0053B
- Name
- Video Upscaling
- Status
- published
- Category
- subjective
- Lead editor
- Peter Schallauer
- Aliases
- upscaled upscaled video
- Tags
- video
Versions
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Details
- Definition
- System shall check if the image content resolution is significantly below the nominal resolution of the video storage format used and shall provide temporal location information for where this is the case.
- References
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- Examples
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00:00:01:00 - 00:00:02:26: upscaled video, resolution 40% is below threshold 70%
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Input parameters
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Output parameters
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Test material
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Remarks
- Remarks
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This Test Item can also be carried out as a Golden Eye's check.
Subjective factors (edge steepness, noisyness, texturedness) may influence perceived sharpness of upscaled frames with a certain signal/content resolution.
The focus may not be identical over the entire frame, e.g. image areas with relevant image content are best focused, other areas like the background can be out of focus.
In this case best focused image areas are relevant for sharpness determination by humans or machines.
The implementation of video upscaling detection is vendor specific. This applies to the detection algorithms deployed and the thresholds triggering reporting.
User discussions
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