POSITIONING METHOD FOR POSITIONING A MOBILE DEVICE IN RELATION TO A SECURITY FEATURE OF A DOCUMENT

摘要

The invention relates to positioning method (100) for positioning a mobile device in relation to a security feature of a document, wherein the mobile device comprises a display, comprising recording (101) an image of the document by means of the mobile device in order to obtain a document image, determining (103) an actual position of the mobile device in relation to the document on the basis of a perspective distortion of a document feature in the document image, determining (105) of a position of the security feature in the document image, and displaying (107) the actual position and a desired position of the mobile device in relation to the position of the security feature on the display of the mobile device.