Chyron Detection (v1.0)

About this version

• Submitter: keighrim
• Submission Time: 2023-07-24T21:50:08+00:00
• Prebuilt Container Image: ghcr.io/clamsproject/app-chyron-detection:v1.0

• Release Notes

  (no notes provided by the developer)

About this app (See raw metadata.json)

This tool detects chyrons, generates time segments.

• App ID: http://apps.clams.ai/chyron-detection/v1.0
• App License: MIT
• Source Repository: https://github.com/clamsproject/app-chyron-detection (source tree of the submitted version)

Inputs

(Note: “*” as a property value means that the property is required but can be any value.)

• http://mmif.clams.ai/vocabulary/VideoDocument/v1 (required) (any properties)

Configurable Parameters

(Note: Multivalued means the parameter can have one or more values.)

Name	Description	Type	Multivalued	Default	Choices
timeUnit	unit for output timeframe	string	N	frames	frames, seconds, milliseconds
sampleRatio	Frequency to sample frames	integer	N	5
minFrameCount	Minimum number of frames required for a timeframe to be included	integer	N	10
threshold	Threshold from 0-1, lower accepts more potential chyrons	number	N	0.5
pretty	The JSON body of the HTTP response will be re-formatted with 2-space indentation	boolean	N	false	false, true

Outputs

(Note: “*” as a property value means that the property is required but can be any value.)

(Note: Not all output annotations are always generated.)

• http://mmif.clams.ai/vocabulary/TimeFrame/v1
  • properties = a complex object with the following keys:
    • frameType = “chyron”