An object detection system for a vehicle comprising an infrared camera for gathering an image of at least a part of the surroundings of the vehicle; and a processor for applying an algorithm to at least a part of the image gathered by the camera, the algorithm identifying non-relevant hot or warm objects (5, 6, 7) detected by the camera and reducing the brightness and/or distinctiveness of the non-relevant objects (5, 6, 7) in the image; and a display for displaying the image to a driver of the vehicle, characterized in that the infrared camera forms an image in the far infrared; and the algorithm identifies non-relevant hot or warm objects (5, 6, 7) detected by the camera.