WO2011037337A3 - 저주파수 성분을 고려한 영상 부호화/복호화 방법 및 장치 - Google Patents

저주파수 성분을 고려한 영상 부호화/복호화 방법 및 장치 Download PDF

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WO2011037337A3
WO2011037337A3 PCT/KR2010/006018 KR2010006018W WO2011037337A3 WO 2011037337 A3 WO2011037337 A3 WO 2011037337A3 KR 2010006018 W KR2010006018 W KR 2010006018W WO 2011037337 A3 WO2011037337 A3 WO 2011037337A3
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encoding
low frequency
frequency components
block
present
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PCT/KR2010/006018
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English (en)
French (fr)
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WO2011037337A2 (ko
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김수년
임정연
김해광
전병우
문주희
이영렬
한종기
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에스케이텔레콤 주식회사
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Priority to US13/497,755 priority Critical patent/US9124901B2/en
Publication of WO2011037337A2 publication Critical patent/WO2011037337A2/ko
Publication of WO2011037337A3 publication Critical patent/WO2011037337A3/ko
Priority to US14/687,200 priority patent/US9807425B2/en
Priority to US15/714,152 priority patent/US10034024B2/en

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    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform 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
    • H04N19/10—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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding 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
    • H04N19/102—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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/124—Quantisation
    • 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
    • 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
    • H04N19/60—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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

본 발명은 저주파수 성분을 고려한 영상 부호화/복호화 방법 및 장치에 관한 것이다. 본 발명은 현재 블록을 예측 부호화하여 부호화된 영상 데이터를 생성하고 복원 블록을 생성하며, 현재 블록과 복원 블록을 감산하여 생성되는 에러 블록의 저주파수 성분만을 부호화하여 부호화된 저주파수 데이터를 생성하는 것을 특징으로 하는 영상 부호화 방법을 제공한다. 본 발명에 의하면, 저주파수 성분을 고려하여 동영상을 부호화함에 따라 변환 및 양자화에 의한 블로킹 효과를 감소시키면서 압축 효율을 향상시킬 수 있다.
PCT/KR2010/006018 2009-09-23 2010-09-03 저주파수 성분을 고려한 영상 부호화/복호화 방법 및 장치 WO2011037337A2 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/497,755 US9124901B2 (en) 2009-09-23 2010-09-03 Method and apparatus for encoding/decoding images considering low frequency components
US14/687,200 US9807425B2 (en) 2009-09-23 2015-04-15 Method and apparatus for encoding/decoding images considering low frequency components
US15/714,152 US10034024B2 (en) 2009-09-23 2017-09-25 Method and apparatus for encoding/decoding images considering low frequency components

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090090283A KR101418101B1 (ko) 2009-09-23 2009-09-23 저주파수 성분을 고려한 영상 부호화/복호화 방법 및 장치
KR10-2009-0090283 2009-09-23

Related Child Applications (2)

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US13/497,755 A-371-Of-International US9124901B2 (en) 2009-09-23 2010-09-03 Method and apparatus for encoding/decoding images considering low frequency components
US14/687,200 Continuation US9807425B2 (en) 2009-09-23 2015-04-15 Method and apparatus for encoding/decoding images considering low frequency components

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WO2011037337A2 WO2011037337A2 (ko) 2011-03-31
WO2011037337A3 true WO2011037337A3 (ko) 2011-07-07

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US (3) US9124901B2 (ko)
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KR20110032671A (ko) 2011-03-30
US20120201296A1 (en) 2012-08-09
US20150222900A1 (en) 2015-08-06
WO2011037337A2 (ko) 2011-03-31
US9807425B2 (en) 2017-10-31
US10034024B2 (en) 2018-07-24
US20180014036A1 (en) 2018-01-11
KR101418101B1 (ko) 2014-07-16
US9124901B2 (en) 2015-09-01

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