Skeleton dots in SourceAFIS transparency data

SourceAFIS » Algorithm » Transparency » Skeleton dots

Dot removal, a part of algorithm transparency, is the first filter applied to traced skeleton before pore removal. Dots are skeleton minutiae with no ridges (or valleys in valley skeleton) attached to them.

KeyMIMEFilename in ZIP
ridges-removed-dotsapplication/cbor025-ridges-removed-dots.cbor
valleys-removed-dotsapplication/cbor033-valleys-removed-dots.cbor

Visualization

Visualization of skeleton after dot removal was constructed by comparing this stage's CBOR and binary data to traced skeleton data. Visualization itself is not part of transparency data.

Fingerprint skeleton after dot removal. Removals, if any, are marked red.

Format

Format is identical to traced skeleton.

Example: 025-ridges-removed-dots.cbor

{
  "width": 388,
  "height": 374,
  "minutiae": [
    {
      "x": 76,
      "y": 268
    },
    {
      "x": 189,
      "y": 352
    },
    "... skipped 183 items ...",
    {
      "x": 64,
      "y": 122
    },
    {
      "x": 66,
      "y": 62
    }
  ],
  "ridges": [
    {
      "start": 0,
      "end": 112,
      "points": [
        {
          "x": 76,
          "y": 268
        },
        {
          "x": 75,
          "y": 267
        },
        "... skipped 215 items ...",
        {
          "x": 207,
          "y": 74
        },
        {
          "x": 208,
          "y": 75
        }
      ]
    },
    {
      "start": 1,
      "end": 33,
      "points": [
        {
          "x": 189,
          "y": 352
        },
        {
          "x": 190,
          "y": 352
        },
        "... skipped 16 items ...",
        {
          "x": 207,
          "y": 351
        },
        {
          "x": 208,
          "y": 350
        }
      ]
    },
    "... skipped 143 items ...",
    {
      "start": 166,
      "end": 176,
      "points": [
        {
          "x": 105,
          "y": 335
        },
        {
          "x": 106,
          "y": 335
        },
        "... skipped 14 items ...",
        {
          "x": 121,
          "y": 332
        },
        {
          "x": 122,
          "y": 331
        }
      ]
    },
    {
      "start": 168,
      "end": 180,
      "points": [
        {
          "x": 160,
          "y": 170
        },
        {
          "x": 159,
          "y": 171
        },
        "... skipped 134 items ...",
        {
          "x": 75,
          "y": 298
        },
        {
          "x": 74,
          "y": 298
        }
      ]
    }
  ]
}