Feature Points

label for Key Point Group Detection

Create a Feature Points Label

  1. Type label name in the "Name*" form

  2. Choose Feature Points from "Type*" dropdown

  3. Select label color from "Start Color" menu

  4. Optional: Choose an "End Color" and a "Count" to create a gradient for labeling to visually see the order labels were placed in

  5. Click "Create" button

When to use

Feature Points enable key point detection for a group.

Architectures such as PoseNet and OpenPose support key points as input. Common use cases include facial recognition and body pose detection.

Data format

A Feature Point schema element creates an array of objects with data consisting of an array of nullable points. Each points is a XY coordinate relative (0.0 to 1.0) to width and height respectively.

[
  0:{
    "type":"constellation"
    "data":{
    "points":[
      0:[
        0:0.55
        1:0.58
      ]
      1:[
        0:0.79
        1:0.72
      ]
      2:NULL
      3:[
       0:0.33
       1:0.71
      ]
    ]
   }
 }
]
Feature Point Labeling

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