Patent ID: 6854644
Filing Date: 2005-02-15
Classification: G06K

Abstract:
1. A method of determining a choice made by a user by analyzing marks made on a response sheet by the user comprising the steps of: (a) providing a response sheet; (b) providing to a user means for making at least one mark on the response sheet wherein said at least one mark indicates at least one choice made by the user; (c) providing means for scanning images of said response sheet on which said at least one mark has been made and for converting said scanned images into data; (d) scanning said response sheet on which said at least one mark has been made; (e) converting said data produced by said means for scanning into a response pixel value set; (f) providing a control pixel value set; (g) analyzing said response pixel value set in relation to said control pixel value set to determine characteristics of said response pixel value set; and (h) determining said at least one choice made by the user by analyzing said characteristics.