CY1120151T1 - Μεθοδος δημιουργιας κβαντισμενης πλοκαδας - Google Patents

Μεθοδος δημιουργιας κβαντισμενης πλοκαδας

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Publication number
CY1120151T1
CY1120151T1 CY20181100441T CY181100441T CY1120151T1 CY 1120151 T1 CY1120151 T1 CY 1120151T1 CY 20181100441 T CY20181100441 T CY 20181100441T CY 181100441 T CY181100441 T CY 181100441T CY 1120151 T1 CY1120151 T1 CY 1120151T1
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CY20181100441T
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Soo Mi Oh
Moonock Yang
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Infobridge Pte. Ltd.
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    • 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
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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
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • H—ELECTRICITY
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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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
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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
    • H04N19/12—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
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    • H—ELECTRICITY
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    • 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
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    • 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
    • H04N19/18—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 a set of transform coefficients
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    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H04N19/197—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including determination of the initial value of an encoding parameter
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    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H04N19/198—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including smoothing of a sequence of encoding parameters, e.g. by averaging, by choice of the maximum, minimum or median value
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
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    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
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    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
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    • 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
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (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

Παρέχεται μια μέθοδος η οποία παράγει μια κατάσταση ενδο πρόβλεψης από μια μονάδα πρόβλεψης, επιλέγει ένα αντίστροφο σχήμα σάρωσης μιας παρούσας μονάδας μετασχηματισμού ανάμεσα σε μια διαγώνια σάρωση, μια κάθετη σάρωση και μια οριζόντια σάρωση βασιζόμενη στην κατάσταση ενδο πρόβλεψης και σε ένα μέγεθος της μονάδας μετασχηματισμού και παράγει μια κβαντισμένη πλοκάδα μέσω της αντίστροφης σάρωσης σημαντικών σημαιών, σημείων συντελεστών και επιπέδων συντελεστών σύμφωνα με το επιλεγμένο αντίστροφο σχήμα σάρωσης. Εάν η μονάδα μετασχηματισμού είναι μεγαλύτερη από ένα προκαθορισμένο μέγεθος, πολλαπλά υποσύνολα δημιουργούνται και σαρώνονται αντίστροφα. Επομένως, το πλήθος των δυαδικών ψηφίων κωδικοποίησης της υπολειμματικής πλοκάδας μειώνεται με τον προσδιορισμό του σχήματος σάρωσης που βασίζεται πάνω στο μέγεθος της μονάδας μετασχηματισμού και της κατάστασης ενδο πρόβλεψης, και μέσω της εφαρμογής του σχήματος σάρωσης σε κάθε υποσύνολο. Επίσης, τα δυαδικά ψηφία σηματοδοσίας μειώνονται μέσω της δημιουργίας προσαρμοστικής ομάδας ΜΡΜ σύμφωνα με τις γειτονικές λειτουργίες ενδο πρόβλεψης.
CY20181100441T 2011-11-04 2018-04-26 Μεθοδος δημιουργιας κβαντισμενης πλοκαδας CY1120151T1 (el)

Applications Claiming Priority (2)

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KR1020110114608A KR20130049524A (ko) 2011-11-04 2011-11-04 인트라 예측 블록 생성 방법
PCT/CN2012/083991 WO2013064098A1 (en) 2011-11-04 2012-11-02 Method of generating quantized block

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CY1120151T1 true CY1120151T1 (el) 2018-12-12

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US (6) US8989258B2 (el)
EP (6) EP3579555B1 (el)
JP (5) JP5792396B2 (el)
KR (6) KR20130049524A (el)
CN (13) CN106060542B (el)
CY (1) CY1120151T1 (el)
DK (1) DK2752004T3 (el)
ES (5) ES2870375T3 (el)
HK (2) HK1214700A1 (el)
HR (1) HRP20180864T1 (el)
HU (5) HUE037573T2 (el)
LT (1) LT2752004T (el)
NO (1) NO2752004T3 (el)
PL (5) PL3579555T3 (el)
PT (1) PT2752004T (el)
RS (1) RS57159B1 (el)
SI (1) SI2752004T1 (el)
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WO (1) WO2013064098A1 (el)

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