Abstract
One of the most important distance measurement errors is produced by light reflections. These errors can't be avoided and black are more affected than white objects. The measured distance by the ToF camera to an object in the scene changes if surrounding objects are moved. The distance error can be greater than 50% and camera calibration is useless if objects are moved. The calibration method we propose can be performed in any conditions not only in the laboratory. The distance errors for all objects in the scene can be corrected if on the objects are attached white or black tags/ labels. The ToF cameras can be improved using an active illumination with structured light. The improvement will eliminate the distance errors produced by light reflections.
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