Source: http://www.google.com/patents/US7809062?dq=patent:5881444
Timestamp: 2013-12-18 20:28:30
Document Index: 367333784

Matched Legal Cases: ['art. 10', 'Application No. 2', 'Application No. 200510130221', 'application No. 03019607', 'Application No. 2003', 'Application No. 10', 'Application No. 03156610', 'Application No. 03']

Patent US7809062 - Motion picture encoding device and motion picture decoding device - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsWhen a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and...http://www.google.com/patents/US7809062?utm_source=gb-gplus-sharePatent US7809062 - Motion picture encoding device and motion picture decoding deviceAdvanced Patent SearchPublication numberUS7809062 B2Publication typeGrantApplication numberUS 11/070,661Publication dateOct 5, 2010Filing dateMar 3, 2005Priority dateSep 6, 2002Also published asCA2439886A1, CA2439886C, CA2779469A1, CA2779469C, CA2779486A1, CN1324904C, CN1491044A, DE60336880D1, EP1406448A2, EP1406448A3, EP1406448B1, EP1835751A2, EP1835751A3, EP1835751B1, EP1835752A2, EP1835752A3, EP1835753A2, EP1835753A3, EP1835753B1, EP1835754A2, EP1835754A3, EP1835754B1, EP1835755A2, EP1835755A3, EP1835755B1, EP1835756A2, EP1835756A3, EP1835757A2, EP1835757A3, EP1835757B1, EP1835758A2, EP1835758A3, EP1835758B1, EP1835759A2, EP1835759A3, EP1835759B1, EP2293573A1, EP2293574A1, EP2293575A1, EP2293576A1, EP2309752A1, EP2309753A1, US7826532, US8068542, US8509307, US20040047420, US20050147171, US20050169381, US20050169382, US20070165721, US20070165722, US20090185623, US20090190663, US20100208816, US20100208823, US20100208824, US20110164681Publication number070661, 11070661, US 7809062 B2, US 7809062B2, US-B2-7809062, US7809062 B2, US7809062B2InventorsAkira Nakagawa, Hidenobu MiyoshiOriginal AssigneeFujitsu LimitedExport CitationBiBTeX, EndNote, RefManPatent Citations (13), Non-Patent Citations (39), Referenced by (2), Classifications (22) External Links: USPTO, USPTO Assignment, EspacenetMotion picture encoding device and motion picture decoding deviceUS 7809062 B2Abstract When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly.
Generally, motion picture data is large in size. Therefore, when motion picture data is transmitted from a transmitting device to a receiving device or when it is stored in a storage device, highly efficient encoding is applied to motion picture data. In this case, �highly efficient encoding� is an encoding process of converting a specific data string into another data string, and compressing the amount of data.
FIGS. 2 and 3 show a format used to encode a field image that is commonly used in ISO/IEC MPEG-2/MPEG-4 (hereinafter called �MPEG-2� and �MPEG-4�, respectively) and the final committee draft of ITU-T H.264/ISO/IEC MPEG-4 Part. 10 (Advanced video coding (AVC)) (�Joint Final Committee Draft (JFCD) of Joint Video Specification (ITU-T REC, H.264/ISO/IEC 14496-10AVC)�, JVT-D157, or ISO/IEC JTC1/SO29/WG11 MPEG02/N492, July 2002, Klagenfurt, AT) (hereinafter called �AVC FCD�), which ITU-T and ISO/IEC jointly were standardizing as of August 2002. Specifically, each frame is composed of two fields: a top field and a bottom field. FIG. 2 shows the respective positions of a luminance pixels and a chrominance pixels, and a field to which each pixel belongs. As shown in FIG. 2, odd number-ordered luminance lines, such as a first luminance line (50 a), a third luminance line (50 b), a fifth luminance line (50 c), a seventh luminance line (50 d), etc., belong to the top field, and even number-ordered lines, such as a second luminance line (51 a), a fourth luminance line (51 b), a sixth luminance line (51 c), a eighth luminance line (51 d), etc., belong to the bottom field. Similarly, odd number-ordered chrominance lines, such as a first chrominance line (52 a), a third chrominance line (52 b), etc., belong to the top field, and even number-ordered chrominance line, such as a second chrominance (53 a), a fourth chrominance line, etc., belong to the bottom field.
(MVC � x,MVC � y)=(MV � x/2,MV � y/2) (1)
G=(1−α)�(1−β)�A+(1−α)�β+B+α�(1−β)�C+α�β�D (2)
(MVC1� x,MVC1� y)=(MV � x/2, MV � y/2) (9)
(MVC2� x,MVC2� y)=(MV � x/2,MV � y/2+�) (10)
(MVC3� x,MVC3� y)=(MV� x/2,MV � y/2−�) (11)
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No. 12/768,109, filed Apr. 27, 2010, Nakagawa, et al., Fujitsu Limited.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8068542Sep 5, 2003Nov 29, 2011Fujitsu LimitedMotion picture encoding device and motion picture decoding deviceUS8509307Apr 1, 2010Aug 13, 2013Fujitsu LimitedMotion picture encoding device and motion picture decoding deviceClassifications U.S. Classification375/240.16International ClassificationH04N7/32, H04N11/04, H04B1/66, H04N11/02, H04N7/12, H04N7/26, H04N7/50Cooperative ClassificationH04N19/00024, H04N19/00224, H04N19/00278, H04N19/00315, H04N19/00587, H04N19/00781, H04N19/00684European ClassificationH04N7/26M6, H04N7/26A8B, H04N7/50, H04N7/26A4B, H04N7/26A6S4, H04N7/26A8U, H04N7/26MRotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google