Method for calculating the geometry of a last for customised footwear

A method for calculating the geometry of a last for customised footwear comprises the following steps: collection in a data base of 3D models of lasts, creation of a grid of lasts having different measurements in terms of length and of fitting, acquisition of a 3D model of a foot, identification of...

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Bibliographische Detailangaben
Hauptverfasser:	RATTI ALESSANDRO, DULIO SERGIO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES ELECTRIC DIGITAL DATA PROCESSING PHYSICS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	A method for calculating the geometry of a last for customised footwear comprises the following steps: collection in a data base of 3D models of lasts, creation of a grid of lasts having different measurements in terms of length and of fitting, acquisition of a 3D model of a foot, identification of a sub-set of at least two lasts having measurement parameters close to those of the foot, deformation of the 3D model of the foot to follow the course of the 3D last model, identification of some areas of interest of the 3D model of the foot, deformation of the 3D model of each of the lasts selected in the areas of interest so as to compensate for differences between the 3D model of the last and the 3D model of the foot and selection, on the basis of the residual errors, of the final last to be reproduced.