Abstract: A method of processing measurement signals output from a detection array comprising at least one sensor, for characterizing the state of occupancy of a motor vehicle seat. The method includes a classification operation for classifying the state of occupancy of the seat. The method also includes a correction operation, during which the measurement signal output by the detection array is corrected at least in part for environmental drift relating to temperature and to humidity prior to being analyzed in the classification operation for classifying the state of occupancy.

Abstract: An imaging apparatus which includes: a fluorescent imaging microscope; a uv radiation source capable of producing a plurality of uv excitation wavelengths; a filter device to select a first and a second excitation wavelength from the plurality of uv excitation wavelengths; a sample chamber to hold a sample for illumination by the radiation of the first and second wavelengths; a photometer to measure the intensity of the excitation wavelength being selected by the filter device and to generate an intensity signal representative of the measured intensity; and a processor in communication with the photometer to record the intensity signal produced by the photometer.