MX2013007018A - Metodo y aparato para desbloquear un filtro. - Google Patents

Metodo y aparato para desbloquear un filtro.

Info

Publication number
MX2013007018A
MX2013007018A MX2013007018A MX2013007018A MX2013007018A MX 2013007018 A MX2013007018 A MX 2013007018A MX 2013007018 A MX2013007018 A MX 2013007018A MX 2013007018 A MX2013007018 A MX 2013007018A MX 2013007018 A MX2013007018 A MX 2013007018A
Authority
MX
Mexico
Prior art keywords
filter
boundary
deblocking
deblocking filter
gradient values
Prior art date
Application number
MX2013007018A
Other languages
English (en)
Inventor
Xun Guo
Shaw-Min Lei
Jicheng An
Qian Huang
Original Assignee
Mediatek Singapore Pte Ltd
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 Mediatek Singapore Pte Ltd filed Critical Mediatek Singapore Pte Ltd
Publication of MX2013007018A publication Critical patent/MX2013007018A/es

Links

Classifications

    • 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
    • H04N19/176—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 the region being a block, e.g. a macroblock
    • 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

Landscapes

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

Abstract

Se describe un método y aparato mejorados para desbloquear un filtro; en una modalidad de acuerdo con la presente invención, se omite determinar la existencia de coeficientes de transformada no cero para un límite únicamente de PU y por lo tanto, el desbloqueo del filtro para el límite únicamente de PU se elimina si la condición de la resistencia del límite igual a 1 no se cumple para evitar el desbloqueo innecesario; en otra modalidad de la presente invención, se determinan tres gradientes para dos líneas de pixeles y se toma la decisión de ENCENDIDO/APAGADO de filtro con base en los tres valores de gradientes de las dos líneas de pixeles; un aspecto de la invención se relaciona con la selección de resistencia del filtro entre filtros fuertes y débiles; de acuerdo con una modalidad, la selección de resistencia del filtro se basa en varios valores de gradiente de una línea de pixeles en el límite de bloque; otro aspecto de la invención se relaciona con el filtro más débil.
MX2013007018A 2011-03-10 2012-03-06 Metodo y aparato para desbloquear un filtro. MX2013007018A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161451289P 2011-03-10 2011-03-10
PCT/CN2012/071977 WO2012119540A1 (en) 2011-03-10 2012-03-06 Method and apparatus of deblocking filter

Publications (1)

Publication Number Publication Date
MX2013007018A true MX2013007018A (es) 2013-07-30

Family

ID=46797491

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2013007018A MX2013007018A (es) 2011-03-10 2012-03-06 Metodo y aparato para desbloquear un filtro.

Country Status (6)

Country Link
US (1) US9729879B2 (es)
JP (1) JP5859568B2 (es)
CN (2) CN103404147B (es)
MX (1) MX2013007018A (es)
WO (1) WO2012119540A1 (es)
ZA (1) ZA201305846B (es)

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US9445129B2 (en) * 2010-04-13 2016-09-13 Sun Patent Trust Image coding method and image decoding method
JP5884313B2 (ja) 2011-01-18 2016-03-15 ソニー株式会社 画像処理装置、画像処理方法、プログラム及び記録媒体
US9232237B2 (en) * 2011-08-05 2016-01-05 Texas Instruments Incorporated Block-based parallel deblocking filter in video coding
AR092786A1 (es) 2012-01-09 2015-05-06 Jang Min Metodos para eliminar artefactos de bloque
TWI569625B (zh) 2012-04-06 2017-02-01 Sony Corp Image processing apparatus and method, program, and recording medium
US10412419B2 (en) * 2013-07-12 2019-09-10 Qualcomm Incorporated Adaptive filtering in video coding
WO2015101329A1 (en) * 2014-01-02 2015-07-09 Mediatek Singapore Pte. Ltd. Method and apparatus for intra prediction coding with boundary filtering control
US10743034B2 (en) 2014-09-15 2020-08-11 Hfi Innovation Inc. Method of deblocking for intra block copy in video coding
US9445131B1 (en) * 2015-01-23 2016-09-13 Faroudja Enterprises, Inc. De-blocking and de-banding filter with adjustable filter strength for video and image processing
US10855997B2 (en) 2017-04-14 2020-12-01 Mediatek Inc. Secondary transform kernel size selection
US11153607B2 (en) * 2018-01-29 2021-10-19 Mediatek Inc. Length-adaptive deblocking filtering in video coding
EP3850855B1 (en) * 2018-09-24 2023-11-01 Huawei Technologies Co., Ltd. Image processing device and method for performing quality optimized deblocking
CA3120828A1 (en) * 2019-01-17 2020-07-23 Huawei Technologies Co., Ltd. An encoder, a decoder and corresponding methods of deblocking filter adaptation
CN117176969A (zh) * 2019-05-11 2023-12-05 抖音视界有限公司 用于视频编解码的去方块滤波器

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002096117A1 (en) 2001-05-25 2002-11-28 Pace Soft Silicon Limited Deblocking block-based video data
US7206448B2 (en) * 2002-02-28 2007-04-17 At&T Corp. System and method for using pattern vectors for video and image coding and decoding
US6907079B2 (en) 2002-05-01 2005-06-14 Thomson Licensing S.A. Deblocking filter conditioned on pixel brightness
US7319415B2 (en) 2002-05-01 2008-01-15 Thomson Licensing Chroma deblocking filter
US20050013494A1 (en) 2003-07-18 2005-01-20 Microsoft Corporation In-loop deblocking filter
US7961963B2 (en) * 2005-03-18 2011-06-14 Sharp Laboratories Of America, Inc. Methods and systems for extended spatial scalability with picture-level adaptation
JP4784188B2 (ja) * 2005-07-25 2011-10-05 ソニー株式会社 画像処理装置、画像処理方法およびプログラム
KR100922275B1 (ko) * 2006-12-15 2009-10-15 경희대학교 산학협력단 경계 필터링 강도의 결정 방법 및 이를 이용한 디블록킹필터링 방법과 장치
CN101321277A (zh) * 2007-06-09 2008-12-10 华为技术有限公司 去块效应的方法及装置
CN101472172B (zh) 2007-12-29 2012-04-04 安凯(广州)微电子技术有限公司 一种在视频解码中滤波前期的数据处理方法及解码器
CN101841722B (zh) * 2010-06-08 2011-08-31 上海交通大学 滤波边界强度的检测装置的检测方法
US9172963B2 (en) * 2010-11-01 2015-10-27 Qualcomm Incorporated Joint coding of syntax elements for video coding
US9167269B2 (en) * 2011-10-25 2015-10-20 Qualcomm Incorporated Determining boundary strength values for deblocking filtering for video coding
US9161046B2 (en) * 2011-10-25 2015-10-13 Qualcomm Incorporated Determining quantization parameters for deblocking filtering for video coding

Also Published As

Publication number Publication date
CN103404147A (zh) 2013-11-20
CN103404147B (zh) 2016-08-31
CN106131555A (zh) 2016-11-16
JP5859568B2 (ja) 2016-02-10
CN106131555B (zh) 2019-04-12
WO2012119540A1 (en) 2012-09-13
US9729879B2 (en) 2017-08-08
US20130266061A1 (en) 2013-10-10
ZA201305846B (en) 2014-10-29
JP2014506438A (ja) 2014-03-13

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