Abstract: The present invention allows spectral codes to be accurately and consistently deployed for a wide range of labels and substrates or products. Spectral codes provided by one or more taggants are incorporated into transferable images so that these images can be prepared separately under accurate, controlled conditions and then transferred onto labels or other substrates. The transferable images that include one or more taggants further include a metal foil layer that is both highly opaque and thin so that the foil is highly compatible with image transfer techniques.

Abstract: The present invention provides AI strategies that can be used to classify samples. The strategies use AI models to transform and reconstruct an input dataset for a sample into a reconstructed dataset. An aspect of the transformation includes at least one compression of data and/or at least one decompression (or expansion) of data. Preferably the transformation involves compressing the data in a plurality of data compression stages and decompressing or expanding the data in a plurality of data decompressing or expansion stages. The advantage of compressing and decompressing the data is that the transformation becomes so complex and uniquely tailored to the trained, authentic samples such that only authentic samples of the associated class or classes are able to be reconstructed with sufficient accuracy to meet a reconstruction error threshold with high classification accuracy.

Abstract: The present invention provides improved spectral signature strategies for use in a wide range of product and service applications. The present invention encodes spectral signature features into one or more optical brightener compounds and/or one or more infrared absorbing compounds. Equipment is modified with appropriate ultraviolet/violet or infrared LED illumination sources and corresponding detectors, optionally optical filters, and optionally mask elements, in order to read the spectral responses. These features desirably are used in combination with one or more other luminescent taggant compounds.

Abstract: The present invention provides improved spectral signature strategies for use in a wide range of product and service applications. The present invention encodes spectral signature features into one or more optical brightener compounds and/or one or more infrared absorbing compounds. Equipment is modified with appropriate ultraviolet/violet or infrared LED illumination sources and corresponding detectors, optionally optical filters, and optionally mask elements, in order to read the spectral responses. These features desirably are used in combination with one or more other luminescent taggant compounds.

Abstract: The present invention allows spectral codes to be accurately and consistently deployed for a wide range of labels and substrates or products. Spectral codes provided by one or more taggants are incorporated into transferable images so that these images can be prepared separately under accurate, controlled conditions and then transferred onto labels or other substrates. The transferable images that include one or more taggants further include a metal foil layer that is both highly opaque and thin so that the foil is highly compatible with image transfer techniques.