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Get digital patterns with color bars insights

This article describes how to get insights for view digital patterns with color bars in Azure AI Video Indexer. Digital patterns detection is a post-production insight that identifies color bars used during filming, which can be useful for color correction and other post-production tasks.

Post-production: digital patterns

Digital patterns detection finds color bars used during filming. Digital patterns are part of post-production insights that you select in the web portal using Slate detection in advanced settings when you upload and index the file.

Digital patterns use cases

Digital patterns detection is most commonly used for color correction during post-production editing of visual media.

View the insight JSON with the web portal

After you upload and index a video, download insights in JSON format from the web portal.

  1. Select the Library tab.
  2. Select the media you want.
  3. Select Download, and then select Insights (JSON). The JSON file opens in a new browser tab.
  4. Find the key pair described in the example response.

Use the API

  1. Use a Get Video Index request. Pass &includeSummarizedInsights=false.
  2. Find the key pairs described in the example response.

Example responses

You can use digital patterns detection for detecting color bars and test cards.

  "framePatterns": [
        {
        "id": 1,
        "patternType": "ColorBars",
        "name": "SMPTE color bars",
        "displayName": "null",
        "thumbnailId": "47979a6b-63bc-44bb-b917-0600f78ec9ed",
        "instances": [
                        {
                            "confidence": 0.512,
                            "adjustedStart": "0:00:04.906261",
                            "adjustedEnd": "0:00:05.321406",
                            "start": "0:00:04.906261",
                            "end": "0:00:05.321406"
                        }
                    ]
                },
Name Description
id The digital pattern ID.
patternType The following types are supported: ColorBars, TestCards.
confidence The confidence level for color bar accuracy.
name The name of the element. For example, SMPTE color bars.
displayName The friendly/display name.
thumbnailId The ID of the thumbnail.
instances A list of time ranges where this element appeared.

Components

No components defined.

Transparency notes

Important

Read the transparency note overview for all VI features. Each insight also has its own transparency note.

  • There can be a mismatch if the input video is of low quality (for example – old Analog recordings).
  • The digital patterns are identified over the 10 min of the beginning and 10 min of the ending part of the video.

Sample code

See all samples for VI

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