0052B - Video Test Pattern Expected
Summary
EBU QC Id
0052B
Name
Video Test Pattern Expected
Status
published
Category
objective
Lead editor
Eric Carson
Aliases
test card colour bars color bars
Tags
video
Versions
Version Status Edition date Saved by Note
Details
Description
A test pattern is a short video sequence showing a sequence of (often still) images with particular characteristics.
For video experts, test patterns allow to quickly detect problems in a video chain and facilitate calibration, alignment, and matching of video devices.
Definition
Used in Checks, the system shall detect whether the expected video test patterns (e.g. bars) appear at expected temporal intervals, optionally it may report in which temporal intervals the expected test patterns are detected.

Used in Reports, the system shall report in which temporal intervals the expected test patterns are detected.

This Test Item can be used in conjunction with EBU QC Test Item 0014B (Test Tones).
References
  • EBU Tech 3325

    Remark: Methods for the Measurement of the performance of Studio Monitors

  • SMPTE RP 219-2002

    Remark: SMPTE Color Bars

  • SMPTE ECR 1-1978

    Remark: SMPTE Color Bars

Examples
  • Input: "Test Pattern Segment Expected" = from 09:59:30:00 to 09:59:40:00
    "Test Pattern IDs" = EBU bars 75%
    "Minimum Duration" = 2
    Input: "Test Pattern Segment Expected" = from 09:59:40:00 to 09:59:50:00
    "Test Pattern IDs" = http://host.domain/TestPatterns/Pattern1.png
    Input: "Matching Confidence Threshold" = 90%
    Output: "Check Result" = true

    Remark: Used as a Check


  • Input: "Test Pattern Segment Expected" = from 09:30:00:00 to 11:00:00:00
    "Test Pattern IDs" = EBU bars 75%, TEST pattern X, http://host.domain/TestPatterns/Pattern1.png
    "Minimum Duration" = 2
    Input: "Matching Confidence Threshold" = 90%
    Output: "Test Pattern Segment" = from 09:59:30:00 to 09:59:50:00
    "Test Pattern ID" = EBU bars 75%
    "Confidence Level" = 91%
    Output: "Test Pattern Segment Detected" = from 10:32:00:00 to 10:32:57:00
    "Test Pattern Detected" = "TEST pattern X"
    "Confidence Level" = 95%

    Remark: Used as a Report


  • uploads/items/example_images/0052Bex001.jpg

  • uploads/items/example_images/0052Bex002.jpg

Input parameters
Name Default value Description Data model name Unit Locator
Output parameters
Name Alias Description Data model name Unit Locator
Test material
Title Version Download
Remarks
Remarks
EBU QC Test Item 0102B (AV Line-Up) can be used where automation is not viable.
User discussions
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