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MX2018004250A - Metodo y dispositivo para codificar o decodificar imagen. - Google Patents

Metodo y dispositivo para codificar o decodificar imagen.

Info

Publication number
MX2018004250A
MX2018004250A MX2018004250A MX2018004250A MX2018004250A MX 2018004250 A MX2018004250 A MX 2018004250A MX 2018004250 A MX2018004250 A MX 2018004250A MX 2018004250 A MX2018004250 A MX 2018004250A MX 2018004250 A MX2018004250 A MX 2018004250A
Authority
MX
Mexico
Prior art keywords
transformation
inverse
coefficient
core
quantification
Prior art date
Application number
MX2018004250A
Other languages
English (en)
Other versions
MX387943B (es
Inventor
Alshina Elena
Alshin Alexander
Mishurovskiy Mikhail
Original Assignee
Samsung Electronics Co 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of MX2018004250A publication Critical patent/MX2018004250A/es
Publication of MX387943B publication Critical patent/MX387943B/es

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    • 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
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    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
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    • H04N19/103—Selection of coding mode or of prediction mode
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    • 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
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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un método y aparato de decodificación de imagen de conformidad con una modalidad puede extraer, de un flujo de bits, un coeficiente DE cuantificación generado A través de transformación de núcleo, transformación secundaria, y cuantificación; generar un coeficiente de cuantificación inversa al realizar cuantificación inversa en el coeficiente de cuantificación; generar un coeficiente de transformación inversa al realizar transformación inversa secundaria en un componente de baja frecuencia del coeficiente de cuantificación inversa, la transformación inversa secundaria corresponde a la transformación secundaria; y realizar transformación inversa de núcleo en el coeficiente de transformación inversa secundaria, la transformación inversa de núcleo corresponde a la transformación de núcleo.
MX2018004250A 2015-10-13 2016-10-13 Metodo y dispositivo para codificar o decodificar imagen. MX387943B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562240725P 2015-10-13 2015-10-13
PCT/KR2016/011497 WO2017065525A2 (ko) 2015-10-13 2016-10-13 영상을 부호화 또는 복호화하는 방법 및 장치

Publications (2)

Publication Number Publication Date
MX2018004250A true MX2018004250A (es) 2018-05-16
MX387943B MX387943B (es) 2025-03-19

Family

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MX2018004250A MX387943B (es) 2015-10-13 2016-10-13 Metodo y dispositivo para codificar o decodificar imagen.
MX2021013693A MX2021013693A (es) 2015-10-13 2018-04-06 Metodo y dispositivo para codificar o decodificar imagen.

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MX2021013693A MX2021013693A (es) 2015-10-13 2018-04-06 Metodo y dispositivo para codificar o decodificar imagen.

Country Status (6)

Country Link
US (4) US10939104B2 (es)
EP (2) EP3629581A1 (es)
KR (5) KR102469145B1 (es)
CN (4) CN112929660B (es)
MX (2) MX387943B (es)
WO (1) WO2017065525A2 (es)

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