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Smart Camera / Vision-Sensor / 1D-/2D-Code-Scanner / OCR Reader
18.3. Coordinate system
By use of coordinates, the position inside a coordinate system is defined uniquely (surface, volume etc.) The
sensor operates in a predominantly two-dimensional image in which a point P (X, Y) is defined by the X and Y
components.
We distinguish three Cartesian coordinate systems with different reference points.
• Image sensor coordinate system
• Image coordinate system
• Input coordinate system
All the coordinate systems follow the definition of a right-handed coordinate system.
18.3.1. Right handed coordinate system
Source: Wikipedia
Note: The right handed coordinate system is rotated 180° by the X-axis to
follow a popular representation.
• X-axis (red)
• Y-axis (green)
• Mathematical positive direction of rotation
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