METHODS AND SYSTEMS FOR DETERMINING A STATE INDICATING WHETHER A SEAT BELT OF A VEHICLE IS USED

A computer implemented method for determining a state indicating whether a seat belt of a vehicle is used comprises: acquiring at least one image of a portion of an interior of the vehicle; determining whether the at least one image comprises a buckle receiver; if it is determined that the at least one image comprises the buckle receiver, determining the state based on the image, and otherwise performing: extracting, from the acquired image, information related to a user of the seat belt and/or information related to a buckle of the seat belt; determining a probability of a change of the state based on the extracted information, and updating the state based on the determined probability.