WO2012095465A1 - Video encoding and decoding with improved error resilience - Google Patents

Video encoding and decoding with improved error resilience Download PDF

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Publication number
WO2012095465A1
WO2012095465A1 PCT/EP2012/050390 EP2012050390W WO2012095465A1 WO 2012095465 A1 WO2012095465 A1 WO 2012095465A1 EP 2012050390 W EP2012050390 W EP 2012050390W WO 2012095465 A1 WO2012095465 A1 WO 2012095465A1
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WIPO (PCT)
Prior art keywords
motion information
predictors
motion
motion vector
predictor
Prior art date
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Ceased
Application number
PCT/EP2012/050390
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English (en)
French (fr)
Inventor
Christophe Gisquet
Guillaume Laroche
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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
Priority to CN201280005312.0A priority Critical patent/CN103314593B/zh
Priority to JP2013548832A priority patent/JP5847844B2/ja
Priority to EP17165564.0A priority patent/EP3244613B1/en
Priority to EP12701088.2A priority patent/EP2664152A1/en
Priority to US13/979,008 priority patent/US11146792B2/en
Priority to PL19171827T priority patent/PL3550841T3/pl
Priority to KR1020187006496A priority patent/KR101953520B1/ko
Priority to KR1020147033307A priority patent/KR101837803B1/ko
Priority to EP19171827.9A priority patent/EP3550841B1/en
Application filed by Canon Inc filed Critical Canon Inc
Priority to PL17165564T priority patent/PL3244613T3/pl
Priority to KR1020197005305A priority patent/KR101999091B1/ko
Priority to EP19191606.3A priority patent/EP3598756B1/en
Priority to KR1020137020499A priority patent/KR101524393B1/ko
Priority to KR1020177032478A priority patent/KR101943787B1/ko
Publication of WO2012095465A1 publication Critical patent/WO2012095465A1/en
Anticipated expiration legal-status Critical
Priority to US17/155,984 priority patent/US20210144385A1/en
Ceased legal-status Critical Current

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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
    • H04N19/10—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
    • H04N19/134—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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
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    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
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    • G—PHYSICS
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    • H04N19/146—Data rate or code amount at the encoder output
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    • 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
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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
    • H04N19/184—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
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    • 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
    • H04N19/192—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 the adaptation method, adaptation tool or adaptation type being iterative or recursive
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    • 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
    • H04N19/43—Hardware specially adapted for motion estimation or 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • H—ELECTRICITY
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/65—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using error resilience
    • 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
    • H—ELECTRICITY
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H04N19/895—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder in combination with error concealment
    • H—ELECTRICITY
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    • 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

Definitions

  • a method of encoding a sequence of digital images into a bitstream, at least one portion of an image being encoded by motion compensation with respect to a reference image portion comprising: obtaining for an image portion to encode a target number of motion information predictors; generating using said target number a set of motion information predictors; selecting a motion information predictor for said image portion to encode from said generated set of motion information predictors, and signaling in said bitstream said target number and information relating to the selected motion information predictor.
  • the encoding method further comprises the steps of:
  • a motion information predictor can be selected for a current block to encode and the selected motion vector predictor can be encoded depending on the number of motion information predictors determined.
  • the number of motion information predictors can be systematically retrieved by the decoder, so that the encoded bitstream can be systematically parsed at a decoder even in case of losses.
  • said target number is determined, for a given image portion to encode, depending upon an encoding information of said given image portion to encode.
  • At least one first motion information predictors is identified as such a seed predictor based on an importance of the first motion information predictor concerned.
  • the importance may be dependent on a number of times the first motion information predictor concerned appears among the first motion information predictors. The greater the number of times the more important the predictor is considered to be and the more likely it is to be used in the set. As well as looking for identical predictors (duplicates) it can also be effective to look for close matches, too.
  • the first motion information predictors may be or include motion information predictors each associated with an image portion having a predetermined spatial and/or temporal relationship with the image portion being encoded.
  • the motion information predictors used in AMVP may be first motion information predictors. These are a good source of seed predictors.
  • a screen 1 109 for displaying data and/or serving as a graphical interface with the user, by means of a keyboard 1 1 10 or any other pointing means.
  • the apparatus is a programmable apparatus which uses software to implement the invention.
  • the present invention may be implemented in hardware (for example, in the form of an Application Specific Integrated Circuit or ASIC).
  • any type of entropy encoding such as Huffman encoding or arithmetic encoding can be used.
  • the indexes may be also encoded using a prefix type code, such as a Rice-Golomb or a unary code.
  • step S504 is applied according to a removal criterion, for example a distance criterion.
  • the set L1 comprises motion vectors predictors ⁇ V-i , . . . .,V N ⁇ , wherein each motion vector predictor is a vector represented by its components or coordinates on the X-axis and the Y-axis in a coordinate system, as represented in figure 8.
  • test S512 is followed by step S514 of obtaining or generating an additional motion vector predictor candidate.
  • step S514 of obtaining or generating an additional motion vector predictor candidate.
  • the motion vectors of blocks 710, 720, 730 and 740 can be added as possible motion vector predictors.
  • the 2 predictors among 770, 760, 750 which were not selected in S500 can be added as possible motion vector predictors.
  • the index i of the selected motion vector predictor MVi for the given block to decode is obtained from the bitstream, knowing N max and therefore the number of bits k on which the index i has been encoded.
  • the steps S500 to S518 are similarly implemented to obtain the set of motion vector predictors L2, so that the index i decoded from the bitstream designates the motion vector predictor actually used by the encoder.
  • Figure 6 details the generation of the set of motion vector predictors or motion vector candidates in a second embodiment of the present invention. All the steps of the algorithm represented in figure 6 can be implemented in software and executed by the central processing unit 1 1 1 1 of the device 1000.
  • a second set of motion vector predictor candidates L1 ' is obtained in step S608.
  • the importance value can be computed as a function of the distance to a representative vector of the set of vectors considered, such as the average value of the vectors of the set or the median of the vectors of the set. Then, the importance may be computed as the inverse of the distance of a given vector of the set Vn to the representative vector: the closer a vector Vn is to the representative vector of the set, the higher the importance of Vn.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
PCT/EP2012/050390 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience Ceased WO2012095465A1 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
EP19171827.9A EP3550841B1 (en) 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience
EP17165564.0A EP3244613B1 (en) 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience
PL17165564T PL3244613T3 (pl) 2011-01-12 2012-01-11 Kodowanie i dekodowanie wideo z poprawioną odpornością na błędy
US13/979,008 US11146792B2 (en) 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience
PL19171827T PL3550841T3 (pl) 2011-01-12 2012-01-11 Kodowanie i dekodowanie wideo z poprawioną odpornością na błędy
KR1020187006496A KR101953520B1 (ko) 2011-01-12 2012-01-11 오류 내성을 향상시킨 비디오 인코딩 및 디코딩
KR1020147033307A KR101837803B1 (ko) 2011-01-12 2012-01-11 오류 내성을 향상시킨 비디오 인코딩 및 디코딩
CN201280005312.0A CN103314593B (zh) 2011-01-12 2012-01-11 错误恢复改进的视频编码和解码
EP12701088.2A EP2664152A1 (en) 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience
JP2013548832A JP5847844B2 (ja) 2011-01-12 2012-01-11 エラー耐性が改善されたビデオ符号化及びビデオ復号化
KR1020197005305A KR101999091B1 (ko) 2011-01-12 2012-01-11 오류 내성을 향상시킨 비디오 인코딩 및 디코딩
EP19191606.3A EP3598756B1 (en) 2011-01-12 2012-01-11 Video decoding with improved error resilience
KR1020137020499A KR101524393B1 (ko) 2011-01-12 2012-01-11 인코딩 방법 및 장치, 디코딩 방법 및 장치, 및 컴퓨터 판독가능 저장 매체
KR1020177032478A KR101943787B1 (ko) 2011-01-12 2012-01-11 오류 내성을 향상시킨 비디오 인코딩 및 디코딩
US17/155,984 US20210144385A1 (en) 2011-01-12 2021-01-22 Video encoding and decoding with improved error resilience

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1100462.9 2011-01-12
GB1100462.9A GB2487200A (en) 2011-01-12 2011-01-12 Video encoding and decoding with improved error resilience

Related Child Applications (2)

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US13/979,008 A-371-Of-International US11146792B2 (en) 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience
US17/155,984 Continuation US20210144385A1 (en) 2011-01-12 2021-01-22 Video encoding and decoding with improved error resilience

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WO2012095465A1 true WO2012095465A1 (en) 2012-07-19

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PCT/EP2012/050389 Ceased WO2012095464A1 (en) 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience
PCT/EP2012/050391 Ceased WO2012095466A1 (en) 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience
PCT/EP2012/050392 Ceased WO2013041244A1 (en) 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience

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PCT/EP2012/050391 Ceased WO2012095466A1 (en) 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience
PCT/EP2012/050392 Ceased WO2013041244A1 (en) 2011-01-12 2012-01-11 Video encoding and decoding with improved error resilience

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US (14) US9386312B2 (enExample)
EP (10) EP3070944B1 (enExample)
JP (12) JP2014506440A (enExample)
KR (15) KR101953520B1 (enExample)
CN (17) CN106210734B (enExample)
BR (2) BR122019026393B1 (enExample)
ES (7) ES2834135T3 (enExample)
GB (3) GB2487200A (enExample)
HU (5) HUE046362T2 (enExample)
PL (5) PL3518544T3 (enExample)
RU (6) RU2600530C2 (enExample)
TR (1) TR201907405T4 (enExample)
WO (4) WO2012095465A1 (enExample)

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