Marking and detecting road marks

A system for detecting road marking in infrared spectral range, comprising:

• at least one processor configured to execute a code, the code comprising:
• code instruction to receive at least one infrared image depicting, in at least one infrared spectral range, a portion of an edge of a road surface painted with road markings expressed using alternating high and low infrared reflective tiles and at least one visible light image depicting the portion of a road surface in visible light spectral range, the infrared reflective tiles are painted using at least one paint material characterized by:
• (1) reflecting light in visible light spectral range deviating less than a first value from the light reflected by the road surface, and (2) reflecting light in an infrared spectral range deviating more than a second value from the light reflected by the road surface;
• code instruction to register the at least one infrared image to the at least one visible light image;
• code instruction to compute a ratio between an infrared reflectiveness value of each of a plurality of pixels of the at least one infrared image and a luminance value computed for a corresponding pixel in the registered at least one visible light image;
• and
• code instruction to detect at least one high reflectiveness tile and at least one low reflectiveness tile based on a difference between the ratio of adjacent pixels exceeding a third value.

A method of computing instructions for painting road markings detectable in infrared spectral range, comprising:

• using at least one processor for:
• computing instructions for painting road markings expressed using alternating high and low infrared reflective tiles on a road surface using at least one paint material characterized by:
• (1) reflecting light in visible light spectral range deviating less than a first value from the light reflected by the road surface, and (2) reflecting light in an infrared spectral range deviating more than a second value from the light reflected by the road surface;
• and
• outputting the painting instructions for applying the at least one paint material on the road the road such that the road markings are visible in the infrared spectral range and imperceptible in the visible spectral range.