Abstract: A method for authenticating an object comprises receiving image data of an image camera of a device comprising the object, recording a barcode, in particular, a two-dimensional barcode, such as a QR code, in the image data with a third-party public key as well as storing the image data with the barcode. The method also comprises generating a digital signature with the device's own private key depending on the image data as well as providing the image data and the digital signature.

Abstract: A method for generating at least one cryptographic key includes taking a plurality of images with an image sensor, in particular, a CMOS image sensor, capturing pixels of the image sensor in at least one section or area of the image sensor which have a predefined error depending on the images taken and determining at least one cryptographic key depending on the captured pixels, that have the error, wherein the predefined error corresponds to a random telegraph noise error.

Abstract: A system with a detector array, a processor unit and a signal interface. The detector array includes a plurality of bolometric measuring cells and a base body. Each measuring cell is configured to detect infrared radiation and to transmit a measurement signal, which is representative of the readings of the measuring cells, to the processor unit. The processor unit is configured to determine a body heat stored by the base body, to determine a predictive value compensated according to the time delay of the respective measuring cell for each current reading, to determine a temperature value corrected according to the measurement error for each current predictive value, and to determine a thermal image based on the current temperature values, allowing an image signal representing the thermal image to be sent from the signal interface. A corresponding method is also provided.

Abstract: A system with a detector array, a processor unit and a signal interface. The detector array includes a plurality of bolometric measuring cells and a base body. Each measuring cell is configured to detect infrared radiation and to transmit a measurement signal, which is representative of the readings of the measuring cells, to the processor unit. The processor unit is configured to determine a body heat stored by the base body, to determine a predictive value compensated according to the time delay of the respective measuring cell for each current reading, to determine a temperature value corrected according to the measurement error for each current predictive value, and to determine a thermal image based on the current temperature values, allowing an image signal representing the thermal image to be sent from the signal interface. A corresponding method is also provided.