0285B - Lens Smudge
Summary
EBU QC Id
0285B
Name
Lens Smudge
Status
published
Category
human-only review
Lead editor
Annabel Polanco
Aliases
Tags
Versions
Version Status Edition date Saved by Note
Details
Description
"Lens Smudge" is dirt, oil, debris, etc. physically on the camera lens that is visible in the captured image.

Lens Smudge impacts the content quality of the asset. Customer experience will be negatively affected if the incurred Lens Smudge is large and severe enough to obscure on screen action.

This issue is rarely creative intent and is a result of dirty equipment during production.

Any video derived from this asset will contain Lens Smudge.
Definition
Used in Checks, the system shall review content for the presence of lens smudge. Optionally, the system may report timecodes at which errors exist and the position in the frame of the error.

Used in Reports, the system reports timecodes at which errors exist and the position in the frame of the error.
References
Examples
  • Output: "Check Result" = false
    Output: "Lens Smudge Segment" from 00:00:30;00 to 00:30:05;00, SpatialRegion xywh=percent:0,0,50,50
    Output: "Lens Smudge Segment" from 00:00:34;00 to 00:34:11;00, SpatialRegion xywh=percent:50,50,50,50

    Remark: Used as a Check. Note: the region information refers to the top-left and bottom-right quadrant of the screen, respectively.


  • Output: "Lens Smudge Segment" from 00:00:30;00 to 00:30:05;00, SpatialRegion xywh=pixel:160,120,320,240
    Output: "Lens Smudge Segment" from 00:00:34;00 to 00:34:11;00, SpatialRegion xywh=pixel:1020,460,300,140

    Remark: Used as a Report.

Input parameters
Name Default value Description Data model name Unit Locator
Output parameters
Name Alias Description Data model name Unit Locator
Test material
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Remarks
Remarks
User discussions
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