BRPI1009553A2 - medição de desfocagem em uma imagem comprimida baseada em bloco - Google Patents

medição de desfocagem em uma imagem comprimida baseada em bloco

Info

Publication number
BRPI1009553A2
BRPI1009553A2 BRPI1009553A BRPI1009553A BRPI1009553A2 BR PI1009553 A2 BRPI1009553 A2 BR PI1009553A2 BR PI1009553 A BRPI1009553 A BR PI1009553A BR PI1009553 A BRPI1009553 A BR PI1009553A BR PI1009553 A2 BRPI1009553 A2 BR PI1009553A2
Authority
BR
Brazil
Prior art keywords
blur
block
video
local
compressed image
Prior art date
Application number
BRPI1009553A
Other languages
English (en)
Inventor
Liu Debing
Xu Feng
Gu Xiaodong
Chen Zhibo
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI1009553A2 publication Critical patent/BRPI1009553A2/pt

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
    • H04N19/134—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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • 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
    • H04N19/174—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 slice, e.g. a line of blocks or a group of blocks
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • 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
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30168—Image quality inspection

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Image Analysis (AREA)

Abstract

método e aparelho para medir desfocagem em uma imagem de vídeo que é codificada utilizando codificação com base em bloco desfocagem é uma das características mais importantes relacionadas à qualidade de vídeo. a estimativa precisa de nível de desfocagem de um vídeo é uma grande ajuda para avaliar precisamente a qualidade do vídeo. um método aperfeiçoado é fornecido para estimar o nível de desfocagem de vídeos que são comprimidos por um codec baseado em bloco, como h.264/avc, mpeg2, etc. de acordo com a invenção, a detecção de desfocagem local se baseia em bordas de macrobloco (mb), um esquema de ponderação dependente de conteúdo é empregado para diminuir a influência da textura e ao detectar desfocagem local, a dispersão de detecção parará em posições de luminância mínima e máxima locais.
BRPI1009553A 2009-03-13 2010-02-26 medição de desfocagem em uma imagem comprimida baseada em bloco BRPI1009553A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09305233 2009-03-13
PCT/EP2010/052474 WO2010102913A1 (en) 2009-03-13 2010-02-26 Blur measurement in a block-based compressed image

Publications (1)

Publication Number Publication Date
BRPI1009553A2 true BRPI1009553A2 (pt) 2019-04-09

Family

ID=42307854

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI1009553A BRPI1009553A2 (pt) 2009-03-13 2010-02-26 medição de desfocagem em uma imagem comprimida baseada em bloco

Country Status (7)

Country Link
US (1) US9497468B2 (pt)
EP (1) EP2406956A1 (pt)
JP (1) JP5536112B2 (pt)
KR (1) KR101761928B1 (pt)
CN (1) CN102349297B (pt)
BR (1) BRPI1009553A2 (pt)
WO (1) WO2010102913A1 (pt)

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US10178406B2 (en) 2009-11-06 2019-01-08 Qualcomm Incorporated Control of video encoding based on one or more video capture parameters
US20110292997A1 (en) * 2009-11-06 2011-12-01 Qualcomm Incorporated Control of video encoding based on image capture parameters
US8842184B2 (en) * 2010-11-18 2014-09-23 Thomson Licensing Method for determining a quality measure for a video image and apparatus for determining a quality measure for a video image
JP5901175B2 (ja) * 2011-08-08 2016-04-06 アイキューブド研究所株式会社 コンテンツ処理装置、コンテンツ処理方法、およびプログラム
US9280813B2 (en) 2012-01-20 2016-03-08 Debing Liu Blur measurement
JP6102602B2 (ja) 2013-07-23 2017-03-29 ソニー株式会社 画像処理装置、画像処理方法、画像処理プログラムおよび撮像装置
KR102120809B1 (ko) 2013-10-15 2020-06-09 삼성전자주식회사 광학필름의 이미지 블러 평가 방법 및 이미지 블러가 감소된 광학 필름
CN104243973B (zh) * 2014-08-28 2017-01-11 北京邮电大学 基于感兴趣区域的视频感知质量无参考客观评价方法
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WO2016203282A1 (en) 2015-06-18 2016-12-22 The Nielsen Company (Us), Llc Methods and apparatus to capture photographs using mobile devices
CN107516305A (zh) * 2017-09-22 2017-12-26 四川长虹电器股份有限公司 批量源图像降模糊程度处理方法
CN116580405B (zh) * 2023-05-11 2025-05-13 湖南华菱电子商务有限公司 一种基于营业执照数据内容的数据分析处理方法及系统

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KR101643026B1 (ko) 2009-10-10 2016-08-10 톰슨 라이센싱 비디오 이미지들 내의 블러를 계산하기 위한 방법 및 장치

Also Published As

Publication number Publication date
KR20110126691A (ko) 2011-11-23
US9497468B2 (en) 2016-11-15
CN102349297A (zh) 2012-02-08
JP2012520588A (ja) 2012-09-06
KR101761928B1 (ko) 2017-07-26
JP5536112B2 (ja) 2014-07-02
CN102349297B (zh) 2014-01-22
US20110317768A1 (en) 2011-12-29
EP2406956A1 (en) 2012-01-18
WO2010102913A1 (en) 2010-09-16

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Legal Events

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B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

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