The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2016
Filed:
Oct. 29, 2014
Applicants:
Kartheek Chandu, Longmont, CO (US);
Mikel J. Stanich, Longmont, CO (US);
Chai Wah Wu, Hopewell Junction, NY (US);
Barry M. Trager, Yorktown Heights, NY (US);
Inventors:
Kartheek Chandu, Longmont, CO (US);
Mikel J. Stanich, Longmont, CO (US);
Chai Wah Wu, Hopewell Junction, NY (US);
Barry M. Trager, Yorktown Heights, NY (US);
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/40 (2006.01); G06K 15/02 (2006.01); H04N 1/405 (2006.01);
U.S. Cl.
CPC ...
H04N 1/40087 (2013.01); G06K 15/1881 (2013.01); H04N 1/4051 (2013.01);
Abstract
A method is disclosed. The method includes applying a human visual system (HVS) model to a Continuous Tone Image (CTI) and a initial Half Tone Image (HTI) to generate a perceived CTI and a perceived HTI and computing a change in pixel error for a first pixel by toggling the first pixel with all the possible output states and swapping the first pixel with all neighbor pixels.