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MA32494B1 - Systemes et procedes pour ameliorer la qualite de signaux video compresses par lissage d'artefacts e blocs - Google Patents

Systemes et procedes pour ameliorer la qualite de signaux video compresses par lissage d'artefacts e blocs

Info

Publication number
MA32494B1
MA32494B1 MA33541A MA33541A MA32494B1 MA 32494 B1 MA32494 B1 MA 32494B1 MA 33541 A MA33541 A MA 33541A MA 33541 A MA33541 A MA 33541A MA 32494 B1 MA32494 B1 MA 32494B1
Authority
MA
Morocco
Prior art keywords
blocks
quality
systems
methods
improving
Prior art date
Application number
MA33541A
Other languages
Arabic (ar)
English (en)
Inventor
Leonard Thomas Bruton
Greg Lancaster
Danny D Lowe
Matt Sherwood
Original Assignee
Worldplay 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 Worldplay Barbados Inc filed Critical Worldplay Barbados Inc
Publication of MA32494B1 publication Critical patent/MA32494B1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • 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 OR CALCULATING; 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 OR CALCULATING; 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

La présente invention concerne des systèmes et procédés dans lesquels, pour une quantité donnée de données nécessaires pour représenter un signal vidéo compressé, la qualité de la vidéo en temps réel visualisée décompressée, telle que perçue par un spectateur humain typique, est améliorée. Ces systèmes et procédés apportent cette amélioration en atténuant l'apparence de blocs sans avoir nécessairement une connaissance préalable de leurs positions. Les procédés décrits atténuent l'apparence de ces blocs de manière que la qualité de la vidéo en temps réel résultant, telle que perçue par les spectateurs humains, soit améliorée.
MA33541A 2008-07-19 2011-01-19 Systemes et procedes pour ameliorer la qualite de signaux video compresses par lissage d'artefacts e blocs MA32494B1 (fr)

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 (fr) 2008-07-19 2009-07-16 Systèmes et procédés pour améliorer la qualité de signaux vidéo compressés par lissage d’artefacts de blocs

Publications (1)

Publication Number Publication Date
MA32494B1 true MA32494B1 (fr) 2011-07-03

Family

ID=41530274

Family Applications (1)

Application Number Title Priority Date Filing Date
MA33541A MA32494B1 (fr) 2008-07-19 2011-01-19 Systemes et procedes pour ameliorer la qualite de signaux video compresses par lissage d'artefacts e blocs

Country Status (13)

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

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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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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
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Also Published As

Publication number Publication date
TW201016012A (en) 2010-04-16
MX2011000691A (es) 2011-04-11
EP2319012A4 (fr) 2012-12-26
CA2731241A1 (fr) 2010-01-28
ZA201100639B (en) 2011-09-28
WO2010009539A1 (fr) 2010-01-28
US20100014596A1 (en) 2010-01-21
AU2009273706A1 (en) 2010-01-28
BRPI0916325A2 (pt) 2018-06-26
EP2319012A1 (fr) 2011-05-11
CN102099831A (zh) 2011-06-15
JP2011528873A (ja) 2011-11-24
KR20110038142A (ko) 2011-04-13

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