Visual Cryptography and Voting Technology

• US 20110279471A1
• Filed: 07/26/2011
• Published: 11/17/2011
• Est. Priority Date: 01/30/2004
• Status: Active Grant

• Current Assignee: James A. Roskind
• Original Assignee: James A. Roskind
• Inventors: Emigh, Aaron T., Roskind, James A.
• Granted Patent: US 8,243,338 B2
• Time in Patent Office: Days
• US Class Current: 345/582
• CPC Class Codes: G06F 21/6254 by anonymising data, e.g. decorrelating personal data from the owner's identification
• CPC Class Codes: G06F 2221/2101 Auditing as a secondary aspect
• CPC Class Codes: G06F 2221/2107 File encryption
• CPC Class Codes: G09C 5/00 Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages

Abstract

In some embodiments, techniques for voting and visual cryptography may include various enhancements.

Claims

1. A method for privacy, comprising:

providing a pixel value;

determining whether the pixel value is associated with coloration;

selecting a first glyph;

wherein a first aggregate opaque area associated with the first glyph is larger than a second aggregate uncolored area associated with the first glyph; and

selecting a second glyph;

wherein the first glyph is opaque in a first region corresponding to a second region that is uncolored in the second glyph, if it is determined that the pixel value is associated with coloration.