INFORMATION MEASURE OF LOCATION PRECISION

The optimal grid size for specifying object location in one and two di mensions is found by maximizing the information content (entropy) of t he system in which the objects reside. The information content increas es logarithmically as the decreasing grid size approaches the object s ize, reflecting the increasing precision of object location, but there after the increase is not monotonic. This implies, for example, that t he fidelity of a digitized image is dependent on pixel size in a nontr ivial way. (C) 1998 Elsevier Science Inc. All rights reserved.