Source: http://www.google.com/patents/US8194997?dq=7143430
Timestamp: 2014-11-24 03:09:34
Document Index: 68744789

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 2007', 'art 10', 'art 10', 'Application No. 2007']

Patent US8194997 - Methods and systems for tone mapping messaging - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsEmbodiments of the present invention comprise methods and systems for signaling tone map data to an image recipient....http://www.google.com/patents/US8194997?utm_source=gb-gplus-sharePatent US8194997 - Methods and systems for tone mapping messagingAdvanced Patent SearchPublication numberUS8194997 B2Publication typeGrantApplication numberUS 11/566,657Publication dateJun 5, 2012Filing dateDec 4, 2006Priority dateMar 24, 2006Also published asEP1845704A2, EP1845704A3, EP1845704B1, US20070223813Publication number11566657, 566657, US 8194997 B2, US 8194997B2, US-B2-8194997, US8194997 B2, US8194997B2InventorsChristopher A. Segall, Louis Joseph Kerofsky, Shawmin LeiOriginal AssigneeSharp Laboratories Of America, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (102), Non-Patent Citations (44), Referenced by (1), Classifications (33), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetMethods and systems for tone mapping messagingUS 8194997 B2Abstract Embodiments of the present invention comprise methods and systems for signaling tone map data to an image recipient.
RELATED REFERENCES This application claims the benefit of U.S. Provisional Patent Application No. 60/785,486, entitled �Methods and Systems for Dynamic Range Signaling,� filed on Mar. 24, 2006; this application also claims the benefit of U.S. Provisional Patent Application No. 60/806,931, entitled �Methods and Systems for Tone Mapping Messaging,� filed on Jul. 10, 2006.
FIELD OF THE INVENTION Embodiments of the present invention comprise methods and systems for tone mapping messaging.
BACKGROUND Video coding is often influenced by the state-of-the-art in display technology. Coding techniques are developed to reduce the bit-rate of an image sequence, and special emphasis is placed on discarding information that is not visibly noticeable. However, it is important to realize that current state-of-the-art display devices can not reproduce the entire dynamic range of the human visual system. Humans are able to resolve approximately five orders of magnitude of dynamic range within a small time window. This is well below the 2-3 orders of magnitude provided by current consumer technology.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing an exemplary embodiment comprising an encoder and a decoder;
DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS It will be readily understood that the components of the present invention, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations. Thus, the following more detailed description of the embodiments of the methods and systems of the present invention is not intended to limit the scope of the invention, but it is merely representative of the presently preferred embodiments of the invention.
f ⁡ ( i ) = int ( 2 sei_bit ⁢ _depth - 1 1 + exp ⁡ ( - 6 * ( i - sigmoid_midpoint ⁢ ) sigmoid_width ) + 0.5 ) ⁢ for ⁢ ⁢ i = 0 , � ⁢ , ( 2 coded_bit ⁢ _depth - 1 ) start_of_coded_interval[i] specifies the beginning point of an interval in the coded data such that all data within the interval are mapped to value i in the sei_bit_depth representation, i.e., all values in [start_of_coded_interval[i], start_of_coded_interval[i+1]) are mapped to i, where start_of_coded_interval[2sei � bit � depth] is set to 2coded � bit � depth. The number of bits used for the representation of the sei_to_coded_map is ((coded_data_bit_depth+7)>>3)<<3.
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ICCE. 2002, p. 134-135.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS8358918May 11, 2010Jan 22, 2013Kabushiki Kaisha ToshibaVideo processing apparatus and video processing methodClassifications U.S. Classification382/274, 382/232, 358/518, 348/473, 382/305, 382/162, 382/128, 345/690, 345/418, 382/168, 348/231.99, 348/671, 707/602, 348/425.1International ClassificationH04N11/04, G06K9/36, G06T1/00, G06K9/40, H04N7/00, H04N5/76, G06K9/46, G06K9/00, H04N5/14, G09G5/10, G06F7/00, G03F3/08, G06K9/60, H04N11/02, H04N7/12, G06F17/00, G06K9/54Cooperative ClassificationH04N1/6027European ClassificationH04N1/60ELegal EventsDateCodeEventDescriptionAug 14, 2012CCCertificate of correctionJun 29, 2012ASAssignmentOwner name: SHARP KABUSHIKI KAISHA, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHARP LABORATORIES OF AMERICA INC.;REEL/FRAME:028470/0330Effective date: 20120627Dec 4, 2006ASAssignmentOwner name: SHARP LABORATORIES OF AMERICA, INC., WASHINGTONFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SEGALL, CHRISTOPHER ANDREW;KEROFSKY, LOUIS JOSEPH;LEI, SHAWMIN;REEL/FRAME:018581/0040Effective date: 20061204RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google