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CY1123691T1 - Μεθοδος κωδικοποιησης και μεθοδος αποκωδικοποιησης - Google Patents

Μεθοδος κωδικοποιησης και μεθοδος αποκωδικοποιησης

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Publication number
CY1123691T1
CY1123691T1 CY20201101057T CY201101057T CY1123691T1 CY 1123691 T1 CY1123691 T1 CY 1123691T1 CY 20201101057 T CY20201101057 T CY 20201101057T CY 201101057 T CY201101057 T CY 201101057T CY 1123691 T1 CY1123691 T1 CY 1123691T1
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CY20201101057T
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English (en)
Inventor
Akiyuki Tanizawa
Takeshi Chujoh
Original Assignee
Kabushiki Kaisha Toshiba
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Publication of CY1123691T1 publication Critical patent/CY1123691T1/el

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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
    • H04N19/46—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
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/10—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
    • H04N19/182—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 pixel
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • 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
    • 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
    • H04N19/186—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 colour or a chrominance component
    • 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
    • H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discrete Mathematics (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)
  • Color Television Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Error Detection And Correction (AREA)

Abstract

Ηλεκτρονική συσκευή (800), η οποία περιλαμβάνει δομοστοιχείο αποκωδικοποιητή (801) ρυθμισμένο να: αποκωδικοποιεί έναν πρώτο παρονομαστή για παράγοντα βαρύτητας luma μιας εικόνας-στόχου από κωδικοποιημένα δεδομένα• αποκωδικοποιεί μια πρώτη τιμή διαφοράς που είναι ίση με μια τιμή διαφοράς μεταξύ ενός πρώτου παρονομαστή και ενός δεύτερου παρονομαστή για τον παράγοντα βαρύτητας chroma της εικόνας-στόχου από τα κωδικοποιημένα δεδομένα• παράγει τον δεύτερο παρονομαστή προσθέτοντας τον πρώτο παρονομαστή και την πρώτη τιμή διαφοράς• παράγει μια πρώτη τιμή αναφοράς του παράγοντα βαρύτητας luma σύμφωνα με τον πρώτο παρονομαστή, όπου η πρώτη τιμή αναφοράς ισούται με μια τιμή που λαμβάνεται με την αριστερή μετατόπιση του «1» κατά τουλάχιστον ένα δυαδικό ψηφίο που καθορίζεται από τον πρώτο παρονομαστή• αποκωδικοποιεί μια δεύτερη τιμή διαφοράς του παράγοντα βαρύτητας luma από τα κωδικοποιημένα δεδομένα, όπου η δεύτερη τιμή διαφοράς ισούται με τιμή διαφοράς μεταξύ του παράγοντα βαρύτητας luma και της πρώτης τιμής αναφοράς• παράγει τον παράγοντα βαρύτητας luma προσθέτοντας την πρώτη τιμή αναφοράς και τη δεύτερη τιμή διαφοράς• παράγει μια δεύτερη τιμή αναφοράς του παράγοντα βαρύτητας chroma σύμφωνα με τον δεύτερο παρονομαστή, όπου η δεύτερη τιμή αναφοράς ισούται με μια τιμή που λαμβάνεται με την αριστερή μετατόπιση του «1» κατά τουλάχιστον ένα δυαδικό ψηφίο που καθορίζεται από το δεύτερο παρονομαστή• αποκωδικοποιεί μια τρίτη τιμή διαφοράς του παράγοντα βαρύτητας chroma από τα κωδικοποιημένα δεδομένα, όπου η τρίτη τιμή διαφοράς ισούται με τιμή διαφοράς μεταξύ του παράγοντα βαρύτητας chroma και της δεύτερης τιμής αναφοράς• και παράγει τον παράγοντα βαρύτητας chroma με την πρόσθεση της δεύτερης τιμής αναφοράς και της τρίτης τιμής διαφοράς.
CY20201101057T 2011-10-17 2020-11-10 Μεθοδος κωδικοποιησης και μεθοδος αποκωδικοποιησης CY1123691T1 (el)

Applications Claiming Priority (3)

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EP11874283.2A EP2770736B1 (en) 2011-10-17 2011-10-17 Encoding method and decoding method
EP17159161.3A EP3217667B1 (en) 2011-10-17 2011-10-17 Encoding method and decoding method
PCT/JP2011/073852 WO2013057783A1 (ja) 2011-10-17 2011-10-17 符号化方法及び復号方法

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CN (5) CN107071415B (el)
AU (5) AU2011379259B2 (el)
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EP3675498A1 (en) 2020-07-01
EP3217667B1 (en) 2020-08-12
CN106899847A (zh) 2017-06-27
MX336659B (es) 2016-01-27
US20170164006A1 (en) 2017-06-08
KR101920601B1 (ko) 2018-11-20
TW201318435A (zh) 2013-05-01
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