Why some of the characters on the bag cannot be seen from ToF image? : SODA VISION PTE LTD

Why some of the characters on the bag cannot be seen from ToF image? Print

Modified on: Mon, 16 Sep, 2019 at 1:33 PM

Issues

Invisible:

Visible:
Visible

Root Cause

This is due to light source used for ToF camera. If using IR light source, IR light will penetrate the characters due to the characters are in non-black ink. Therefore, the characters is invisible from ToF images. In short, the characters that are printed with non-black ink will appear transparent under IR light.

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