1. A method of position determination, comprising: storing an actual tag in a reference data module; receiving an image of a visual tag, the image captured by an image-capturing device; comparing properties of the visual tag with properties of the actual tag; and based on the comparison, determining a position of the image-capturing device relative to the visual tag based on an angular position of the image capturing device relative to the visual tag, wherein the tag further has predefined geometrical characteristics associated therewith, such that determining the angular position further includes analyzing the image for deformation of said predefined geometrical characteristics of the visual tag due to angular position and optical characteristics of the image-capturing device at the time of capturing the image of the visual tag.