BRPI0916325A2 - sistemas e métodos para melhorar a qualidade dos sinais de vídeo comprimidos pela harmonização de artefatos de bloco - Google Patents

sistemas e métodos para melhorar a qualidade dos sinais de vídeo comprimidos pela harmonização de artefatos de bloco

Info

Publication number
BRPI0916325A2
BRPI0916325A2 BRPI0916325A BRPI0916325A BRPI0916325A2 BR PI0916325 A2 BRPI0916325 A2 BR PI0916325A2 BR PI0916325 A BRPI0916325 A BR PI0916325A BR PI0916325 A BRPI0916325 A BR PI0916325A BR PI0916325 A2 BRPI0916325 A2 BR PI0916325A2
Authority
BR
Brazil
Prior art keywords
harmonizing
improving
quality
systems
methods
Prior art date
Application number
BRPI0916325A
Other languages
English (en)
Inventor
D Lowe Danny
Lancaster Greg
Thomas Bruton Leonard
Sherwood Matt
Original Assignee
Wordplay Barbados Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wordplay Barbados Inc filed Critical Wordplay Barbados Inc
Publication of BRPI0916325A2 publication Critical patent/BRPI0916325A2/pt

Links

Classifications

    • G06T5/70—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20048—Transform domain processing
    • G06T2207/20052—Discrete cosine transform [DCT]
BRPI0916325A 2008-07-19 2009-07-16 sistemas e métodos para melhorar a qualidade dos sinais de vídeo comprimidos pela harmonização de artefatos de bloco BRPI0916325A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/176,371 US20100014596A1 (en) 2008-07-19 2008-07-19 Systems and methods for improving the quality of compressed video signals by smoothing block artifacts
PCT/CA2009/000998 WO2010009539A1 (en) 2008-07-19 2009-07-16 Systems and methods for improving the quality of compressed video signals by smoothing block artifacts

Publications (1)

Publication Number Publication Date
BRPI0916325A2 true BRPI0916325A2 (pt) 2018-06-26

Family

ID=41530274

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0916325A BRPI0916325A2 (pt) 2008-07-19 2009-07-16 sistemas e métodos para melhorar a qualidade dos sinais de vídeo comprimidos pela harmonização de artefatos de bloco

Country Status (13)

Country Link
US (1) US20100014596A1 (pt)
EP (1) EP2319012A4 (pt)
JP (1) JP2011528873A (pt)
KR (1) KR20110038142A (pt)
CN (1) CN102099831A (pt)
AU (1) AU2009273706A1 (pt)
BR (1) BRPI0916325A2 (pt)
CA (1) CA2731241A1 (pt)
MA (1) MA32494B1 (pt)
MX (1) MX2011000691A (pt)
TW (1) TW201016012A (pt)
WO (1) WO2010009539A1 (pt)
ZA (1) ZA201100639B (pt)

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US8363978B2 (en) * 2009-03-03 2013-01-29 Samsung Electronics Co., Ltd. System and method for block edge location with varying block sizes and offsets in compressed digital video
US8891609B2 (en) * 2009-03-24 2014-11-18 Samsung Electronics Co., Ltd. System and method for measuring blockiness level in compressed digital video
JP2012256202A (ja) * 2011-06-09 2012-12-27 Sony Corp 画像処理装置、および画像処理方法、並びにプログラム
US20140089806A1 (en) * 2012-09-25 2014-03-27 John C. Weast Techniques for enhanced content seek
CN103079029B (zh) * 2013-02-06 2016-07-13 上海风格信息技术股份有限公司 一种基于宏块边缘信息的数字电视马赛克识别方法
US9693063B2 (en) * 2015-09-21 2017-06-27 Sling Media Pvt Ltd. Video analyzer
US9749686B2 (en) 2015-09-21 2017-08-29 Sling Media Pvt Ltd. Video analyzer
CN109167959B (zh) * 2018-09-07 2020-04-03 浙江大华技术股份有限公司 一种视频采集设备、系统及视频信号传输方法
TWI832721B (zh) * 2023-03-08 2024-02-11 國立清華大學 影像的稀疏邊緣編碼及解碼方法

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EP1947864A3 (en) * 1991-09-30 2010-05-19 Kabushiki Kaisha Toshiba Band-compressed signal recording/reproducing processing apparatus
US6760463B2 (en) * 1995-05-08 2004-07-06 Digimarc Corporation Watermarking methods and media
US5850294A (en) * 1995-12-18 1998-12-15 Lucent Technologies Inc. Method and apparatus for post-processing images
US6281942B1 (en) * 1997-08-11 2001-08-28 Microsoft Corporation Spatial and temporal filtering mechanism for digital motion video signals
DE69938118T2 (de) * 1998-11-09 2009-02-05 Sony Corp. Datenaufzeichnungsgerät und -verfahren
US6771836B2 (en) * 2001-06-21 2004-08-03 Microsoft Corporation Zero-crossing region filtering for processing scanned documents
US7079703B2 (en) * 2002-10-21 2006-07-18 Sharp Laboratories Of America, Inc. JPEG artifact removal
US7603689B2 (en) * 2003-06-13 2009-10-13 Microsoft Corporation Fast start-up for digital video streams
KR100936034B1 (ko) * 2003-08-11 2010-01-11 삼성전자주식회사 블록 단위로 부호화된 디지털 영상의 블로킹 현상을제거하는 방법 및 그 영상재생장치
US7822286B2 (en) * 2003-11-07 2010-10-26 Mitsubishi Electric Research Laboratories, Inc. Filtering artifacts in images with 3D spatio-temporal fuzzy filters
US7460596B2 (en) * 2004-04-29 2008-12-02 Mediatek Incorporation Adaptive de-blocking filtering apparatus and method for MPEG video decoder
JP2006060286A (ja) * 2004-08-17 2006-03-02 Matsushita Electric Ind Co Ltd ブロックノイズ低減方法及びブロックノイズ低減装置
CN100414997C (zh) * 2004-09-29 2008-08-27 腾讯科技（深圳）有限公司 一种视频数据压缩的量化方法
US7957467B2 (en) * 2005-09-15 2011-06-07 Samsung Electronics Co., Ltd. Content-adaptive block artifact removal in spatial domain
US8503536B2 (en) * 2006-04-07 2013-08-06 Microsoft Corporation Quantization adjustments for DC shift artifacts
US7995649B2 (en) * 2006-04-07 2011-08-09 Microsoft Corporation Quantization adjustment based on texture level

Also Published As

Publication number Publication date
ZA201100639B (en) 2011-09-28
EP2319012A1 (en) 2011-05-11
TW201016012A (en) 2010-04-16
CN102099831A (zh) 2011-06-15
MA32494B1 (fr) 2011-07-03
MX2011000691A (es) 2011-04-11
KR20110038142A (ko) 2011-04-13
WO2010009539A1 (en) 2010-01-28
AU2009273706A1 (en) 2010-01-28
JP2011528873A (ja) 2011-11-24
CA2731241A1 (en) 2010-01-28
US20100014596A1 (en) 2010-01-21
EP2319012A4 (en) 2012-12-26

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2478 DE 03-07-2018 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.

B350 Update of information on the portal [chapter 15.35 patent gazette]