An endoscope assembly, comprising: an insertion tube, a first imaging sensor on a distal end region of the insertion tube, a first light source on the distal end region of the insertion tube, a first polarizer filter covering the first light source, and an imaging device coupled to the distal end region of the insertion tube, wherein the imaging device includes a second imaging sensor that faces towards the first imaging sensor when the imaging device is coupled to the insertion tube, a second light source, and a second polarizer filter covering the second imaging sensor, wherein the first and second polarizer filters are configured to reduce light interference between the second imaging sensor and the first light source.
