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Drone Ground Sample Unit

Preserve explicit image ground-sample distance text and unit without estimating spatial resolution.

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Description

Preserve explicit image ground-sample distance text and unit.

Precision-agriculture records separate spatial reference versions, quality-code sources, calibration factors and target prescriptions. A cross-track error needs a directed planar line, while pulse counts require a compatible volume-per-pulse factor. Local map differences and overlap widths do not select a treatment, control machinery or establish positioning accuracy.

Preserve explicit image ground-sample distance text and unit.

When to use this tool

Use Drone Ground Sample Unit when you already have imageId, groundSampleValueText, unitText and need to preserve explicit image ground-sample distance text and unit.

How to use the tool and how it works

  1. Enter imageId, groundSampleValueText, unitText. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read token. Use the output convention below.

Enter imageId, groundSampleValueText, unitText using the field constraints below. Encode these values, in exactly that order, as a JSON array and return the serialized array as text in token. String values are preserved without trimming or external terminology lookup.1

Input fieldMeaning and unitsAccepted input
imageIdImage IdRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
groundSampleValueTextGround Sample Value TextRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
unitTextUnit TextRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
Output fieldInterpretationReturned shape
tokenTokenRequired. Text; maximum UTF-16 length 8192.
json
{
  "input": {
    "imageId": "IMG17",
    "groundSampleValueText": "2.5",
    "unitText": "cm/pixel"
  },
  "output": {
    "token": "[\"IMG17\",\"2.5\",\"cm/pixel\"]"
  }
}

Limitations and assumptions

  • The result records supplied values without estimating spatial resolution. Sources and asserted relationships are not independently authenticated.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.

Alternative or Complementary methods

Use the original georeferenced map, calibrated meter and verified machine geometry for field decisions. A full guidance or application analysis must include coordinate system, path extent and equipment constraints beyond one signed offset or overlap width.

References

  1. Calculation and input contract: precision-agriculture/drone-ground-sample-unit — tool.io

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