Method and device for capturing a document

An apparatus, comprising:

• at least one processor;
• a display;
• a camera;
• non-transitory computer memory;
• and
• stored instructions translatable by the at least one processor to perform:
• identifying edges of a document within a two-dimensional image of the document, the two-dimensional image of the document obtained by the apparatus via the camera and displayed to a user of the apparatus via the display;
• determining angles between detected edges of the document;
• determining, based on the detected edges and the angles determined, a three-dimensional position of the document relative to a position of the apparatus;
• determining correction information to correct, by relative movement, the three-dimensional position of the document relative to the position of the apparatus;
• determining guidance information from the correction information;
• and
• providing the guidance information to the user of the apparatus, the guidance information guiding the user to perform the relative movement such that when the three-dimensional position of the document is correct relative to the position of the apparatus, the apparatus automatically captures the document.

A computer program product comprising at least one non-transitory computer-readable storage medium including instructions translatable by at least one processor of an apparatus to perform:

• identifying edges of a document within a two-dimensional image of the document, the two-dimensional image of the document obtained by the apparatus via a camera and displayed to a user of the apparatus via a display;
• determining angles between detected edges of the document;
• determining, based on the detected edges and the angles determined, a three-dimensional position of the document relative to a position of the apparatus;
• determining correction information to correct, by relative movement, the three-dimensional position of the document relative to the position of the apparatus;
• determining guidance information from the correction information;
• and
• providing the guidance information to the user of the apparatus, the guidance information guiding the user to perform the relative movement such that when the three-dimensional position of the document is correct relative to the position of the apparatus, the apparatus automatically captures the document.