System and method for object recognition utilizing reflective light blocking

A computer-implemented method for recognizing at least one object having specific luminescence properties in a scene, the method comprising:

• (i) illuminating—with a light source comprising at least one illuminant—the scene in which the least one object having object specific reflectance and/or luminescence properties is present, wherein each illuminant of the light source has a full-width-half-max (FWHM) of 1 to 50 nm,
• (ii) acquiring—with a sensor unit—data on the object specific reflectance and/or luminescence properties upon illuminating the scene with the light source for each object having object specific reflectance and/or luminescence properties and being present in the scene, wherein the sensor unit includes at least one color sensitive sensor and at least one camera filter selectively blocking the reflected light and allowing passage of reflectance and/or luminescence originating from illuminating the scene with the light source into the at least one color sensitive sensor, the at least one camera filter being positioned optically intermediate the scene and the sensor(s);
• (iii) optionally determining—with a computer processor—further object specific reflectance and/or luminescence properties from the data acquired in step (ii);
• (iv) providing to the computer processor via a communication interface digital representations of pre-defined objects;
• (v) determining—with the computer processor—the object(s) based on data acquired on object specific reflectance and/or luminescence properties and/or the optionally determined further object specific reflectance and/or luminescence properties and the provided digital representations of pre-defined objects, and
• (vi) optionally providing via a communication interface the determined object(s).