Abstract: A camera arrangement is mounted on a motor vehicle to detect a human within or outside the vehicle. The output from the camera is processed by a processor to identify any area or areas of the captured image which have a specific spectral content representative of human skin. A processor may determine the position of any identified area within the image and may control or modify the actuation of one or more safety devices. The arrangement may be used in a motor vehicle, and the processor may control or modify the deployment of a safety device, such as an air-bag, depending upon the position of a seat occupant or a safety device for a pedestrain.