Omron V460-H User Manual page 232

4 WebLink Configuration
HH
Curved 2D
Curved 2D is designed for Data Matrix and QR Code symbols on bottles and other cylinders.
Curved Data Matrix
Curved QR Code
Curvature in a captured image is usually created when the reader is pointing to the symbol at an angle.
This algorithm, when enabled, will only be active when the curvature is great enough. If the length ratio
between the red and green line shown in the example below is greater than 20:1, the Curved 2D
algorithm will be activated.
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V460-H Industrial Handheld DPM Reader User Manual