IN2015DN04041A - - Google Patents

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Publication number
IN2015DN04041A
IN2015DN04041A IN4041DEN2015A IN2015DN04041A IN 2015DN04041 A IN2015DN04041 A IN 2015DN04041A IN 4041DEN2015 A IN4041DEN2015 A IN 4041DEN2015A IN 2015DN04041 A IN2015DN04041 A IN 2015DN04041A
Authority
IN
India
Prior art keywords
picture
reference picture
decoder
encoder
order count
Prior art date
Application number
Inventor
Jonatan Samuelsson
Rickard Sjöberg
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of IN2015DN04041A publication Critical patent/IN2015DN04041A/en

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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
    • H04N19/50—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
    • H04N19/58—Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
    • 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
    • H04N19/169—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
    • H04N19/10—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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/188—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 video data packet, e.g. a network abstraction layer [NAL] unit
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • 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
    • H04N19/46—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
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Landscapes

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

Abstract

An encoder (80) a decoder (50) and methods for coding of a video sequence. The encoder (80) calculates (301) an indication to a previous reference picture. The previous reference picture has a temporal identity of zero. The encoder (80) creates (302) a first set of indicators to the previous reference picture to all reference pictures included in a first reference picture set of the previous reference picture and to all pictures that follow the previous reference picture in decoding order and precede the current picture in decoding order. The encoder (80) sets (303) a flag for picture order count cycle when a long term reference picture has least significant bits of a picture order count for which more than one picture indicated in the first set share the same value of the least significant bits of picture order count as the long term reference picture. The decoder (50) obtains (305) least significant bits of a picture order count for a long term reference picture included in a reference picture set of the current picture. The decoder (50) obtains (306) the flag. The decoder (50) concludes (307) non compliant bitstream when the flag indicates that the picture order count cycle is not used and the least significant bits match more than one reference picture. Corresponding computer programs and computer program products are also disclosed.
IN4041DEN2015 2013-01-16 2013-12-18 IN2015DN04041A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361753158P 2013-01-16 2013-01-16
PCT/EP2013/077229 WO2014111222A1 (en) 2013-01-16 2013-12-18 Decoder and encoder and methods for coding of a video sequence

Publications (1)

Publication Number Publication Date
IN2015DN04041A true IN2015DN04041A (en) 2015-10-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
IN4041DEN2015 IN2015DN04041A (en) 2013-01-16 2013-12-18

Country Status (13)

Country Link
US (8) US9300965B2 (en)
EP (3) EP3399746B1 (en)
JP (1) JP5897236B1 (en)
CN (1) CN104937942B (en)
DK (1) DK2946556T3 (en)
ES (2) ES2609527T3 (en)
HU (1) HUE040200T2 (en)
IN (1) IN2015DN04041A (en)
NZ (1) NZ708943A (en)
PL (2) PL2946556T3 (en)
PT (2) PT3119089T (en)
TR (1) TR201809689T4 (en)
WO (1) WO2014111222A1 (en)

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CN110832868A (en) * 2018-08-31 2020-02-21 深圳市大疆创新科技有限公司 Encoding method, decoding method, encoding device, and decoding device
EP3895432A4 (en) * 2018-12-10 2022-08-31 Sharp Kabushiki Kaisha SYSTEMS AND METHODS FOR SIGNIFICANT REFERENCE IMAGES IN VIDEO CODING
US10812818B2 (en) * 2018-12-14 2020-10-20 Tencent America LLC Network abstraction unit layer type classes in network abstraction layer unit header
MX2021009024A (en) * 2019-01-28 2021-10-13 Op Solutions Llc Explicit signaling of extended long term reference picture retention.
US10986353B2 (en) * 2019-03-15 2021-04-20 Tencent America LLC Decoded picture buffer management for video coding
MX2021015641A (en) * 2019-06-21 2022-02-03 Ericsson Telefon Ab L M Video coding layer up-switching indication.
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Also Published As

Publication number Publication date
CN104937942A (en) 2015-09-23
US20230421805A1 (en) 2023-12-28
EP3119089B1 (en) 2018-06-27
US11284106B2 (en) 2022-03-22
EP2946556A1 (en) 2015-11-25
PL2946556T3 (en) 2017-04-28
ES2609527T3 (en) 2017-04-20
HUE040200T2 (en) 2019-02-28
JP5897236B1 (en) 2016-03-30
US20240364922A1 (en) 2024-10-31
TR201809689T4 (en) 2018-07-23
US9300965B2 (en) 2016-03-29
US20160156927A1 (en) 2016-06-02
US12069298B2 (en) 2024-08-20
WO2014111222A1 (en) 2014-07-24
PT3119089T (en) 2018-08-03
US20200036999A1 (en) 2020-01-30
US20180270505A1 (en) 2018-09-20
CN104937942B (en) 2016-09-07
US10999600B2 (en) 2021-05-04
PL3119089T3 (en) 2018-11-30
NZ708943A (en) 2018-12-21
US11818392B2 (en) 2023-11-14
EP3399746B1 (en) 2019-08-07
US10477239B2 (en) 2019-11-12
PT2946556T (en) 2016-12-30
US20220167007A1 (en) 2022-05-26
JP2016511952A (en) 2016-04-21
EP2946556B1 (en) 2016-10-12
EP3399746A1 (en) 2018-11-07
US20150208064A1 (en) 2015-07-23
EP3119089A1 (en) 2017-01-18
US9998758B2 (en) 2018-06-12
DK2946556T3 (en) 2017-01-23
ES2687768T3 (en) 2018-10-29
US20210227255A1 (en) 2021-07-22

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