An airbag arrangement includes an airbag with at least one inflatable chamber and a first opening; and a cover that at least partially covers the first opening of the airbag and that comprises a second opening. The image sensor captures a sequence of images under exposure of light from the light source. The annotated data may then be communicated to a secondary data store, which may then write the data and annotated information to one or more logs for eventual replay and committal at the secondary data store. The first distance is determined according to a mechanical tolerance of the diffuser plate.