1. An apparatus for determining a position of an object relative to a representation of an image to be represented, comprising: an input for at least one image to be represented; a position pattern generator configured to generate a position pattern which is subdivided into a plurality of pattern portions, each of the pattern portions comprising an unambiguous bit pattern of a plurality of bit patterns, the bit patterns being Gray-coded in a generalized manner; a combination unit configured to combine the position pattern with the at least one image to be represented and for providing a corresponding combined image; an optical sensor configured to optically sense an image section of the combined image, the image section being correlated with the position of the object; a filter configured to extract at least one bit pattern which corresponds to a pattern portion of the position pattern, from the image section and for providing at least one corresponding extracted pattern portion wherein the extracted pattern portion corresponds to a weighted sum of pattern portions which are at least partly within the image section; and a determiner configured to determine the position of the object on the basis of the at least one extracted bit pattern wherein the determiner is configured to form a bit probability pattern on the basis of the weighted sum of pattern portions, wherein the bit probability pattern indicates relatively reliable bit pattern parts and relatively uncertain bit pattern parts, wherein the relatively reliable bit pattern parts limit an image section position to one pattern portion or several pattern portions of the pattern portions within the image section and the relatively uncertain bit pattern parts represent an intermediate position of the image section relative to two or several pattern portions; wherein the apparatus is implemented using a hardware apparatus, or using a computer, or using a combination of a hardware apparatus and a computer.