Abstract: A computer-implemented method for creating an encoder-decoder system for embedding information in a decorative label. The method includes defining a family of encoder functions and a family of decoder functions. Each encoder function of the family of encoder functions configured to encode information as a respective modification of a decorative label. Each decoder function of the family of decoder functions configured to decode an image of a modified decorative label into respective decoded information. The method includes applying an iterative optimization process to determine an optimized encoder-decoder pair. The optimized encoder-decoder air includes an optimized encoder function and an optimized decoder function. The optimized encoder function is selected by the iterative optimization process from the family of encoder functions and the optimized decoder function is selected by the iterative optimization process from the family of decoder functions.

Abstract: Methods for producing custom hand grips that are shaped to fit the hand of a specific user, and custom hand grips produced by the method. A sleeve of moldable material is applied to an internal frame in the shape of the desired handle, forming a moldable hand grip. The user grips the moldable material, deforming the moldable material to be shaped to conform to the hand of the user, forming a molded hand grip. The molded firearm hand grip is then scanned three dimensionally to produce an electronic file(s) containing information defining the exterior shape of the molded firearm grip. The electronic file is then used to produce a custom hand grip by machining and/or additive manufacturing processes. The invention includes methods and structures for all types of hand grips, including but not limited to firearm, sporting equipment and tool hand grips.

Abstract: A computer-implemented method for creating an encoder-decoder system for embedding information in a decorative label. The method includes defining a family of encoder functions and a family of decoder functions. Each encoder function of the family of encoder functions configured to encode information as a respective modification of a decorative label. Each decoder function of the family of decoder functions configured to decode an image of a modified decorative label into respective decoded information. The method includes applying an iterative optimization process to determine an optimized encoder-decoder pair. The optimized encoder-decoder air includes an optimized encoder function and an optimized decoder function. The optimized encoder function is selected by the iterative optimization process from the family of encoder functions and the optimized decoder function is selected by the iterative optimization process from the family of decoder functions.