RU2321966C2 - Method for determining movement vectors in direct prediction mode for b-frame - Google Patents

Method for determining movement vectors in direct prediction mode for b-frame Download PDF

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RU2321966C2
RU2321966C2 RU2005107561/09A RU2005107561A RU2321966C2 RU 2321966 C2 RU2321966 C2 RU 2321966C2 RU 2005107561/09 A RU2005107561/09 A RU 2005107561/09A RU 2005107561 A RU2005107561 A RU 2005107561A RU 2321966 C2 RU2321966 C2 RU 2321966C2
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reference frame
list
frame
movement vectors
prediction mode
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RU2005107561/09A
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RU2005107561A (en
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Байеонг-Мун ДЖЕОН (KR)
Байеонг-Мун Джеон
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Эл Джи Электроникс Инк.
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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
    • H04N19/50—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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/50—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
    • H04N19/50—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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
    • A61N2005/0659—Radiation therapy using light characterised by the wavelength of light used infrared
    • A61N2005/066—Radiation therapy using light characterised by the wavelength of light used infrared far infrared

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

FIELD: method for determining movement vector to produce movement vectors for a bidirectional prediction block.
SUBSTANCE: method for determining movement vector to produce movement vectors for a bidirectional prediction block in a system for processing a moving image includes selecting, from movement vectors, list 0 or list 1 of shifted block in direct prediction mode and movement vectors are produced in direct prediction mode using selected movement vector.
EFFECT: increased efficiency of encoding of bidirectional prediction frame, using various methods for producing B-frame movement vectors.
6 cl, 40 dwg, 8 ex

Description

Текст описания приведен в факсимильном виде.

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Claims (6)

1. Способ определения векторов движения блока двунаправленного предсказания в текущем кадре в режиме прямого предсказания, заключающийся в том, что1. The method of determining the motion vectors of the bidirectional prediction block in the current frame in the direct prediction mode, namely, that из векторов движения первого опорного кадра и второго опорного кадра выбирают, по меньшей мере, один, если смещенный блок в режиме прямого предсказания имеет векторы движения, как первого опорного кадра, так и второго опорного кадра; иat least one of the motion vectors of the first reference frame and the second reference frame is selected if the biased block in the direct prediction mode has motion vectors of both the first reference frame and the second reference frame; and получают векторы движения блока двунаправленного предсказания путем масштабирования вектора движения смещенного блока,get the motion vectors of the bidirectional prediction block by scaling the motion vector of the biased block, при этом масштабирование вектора движения смещенного блока осуществляют путем использования временного интервала между текущим кадром, включающим блок двунаправленного предсказания, и опорным кадром, включающим смещенный блок.wherein the scaling of the motion vector of the offset block is carried out by using the time interval between the current frame including the bidirectional prediction block and the reference frame including the offset block. 2. Способ по п.1, в котором первый опорный кадр является опорным кадром перечня 0.2. The method of claim 1, wherein the first reference frame is a reference frame of list 0. 3. Способ по п.1, в котором второй опорный кадр является опорным кадром перечня 1.3. The method according to claim 1, in which the second reference frame is a reference frame of list 1. 4. Способ по п.1, в котором далее устанавливают опорный кадр, на который ссылается смещенный блок, содержащий выбранный вектор движения, в качестве опорного кадра перечня 0.4. The method according to claim 1, in which the next establish the reference frame, which refers to the offset block containing the selected motion vector, as the reference frame list 0. 5. Способ по п.1, в котором векторы движения представляют собой вектор движения MVF перечня 0 и вектор движения MVB перечня 1.5. The method according to claim 1, in which the motion vectors are the motion vector MV F of list 0 and the motion vector MV B of list 1. 6. Способ по п.1, в котором далее устанавливают опорный кадр, указанный выбранным вектором движения, в качестве опорного кадра перечня 0.6. The method of claim 1, wherein the reference frame indicated by the selected motion vector is further set as the reference frame of list 0.
RU2005107561/09A 2002-10-04 2005-03-18 Method for determining movement vectors in direct prediction mode for b-frame RU2321966C2 (en)

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US8526499B2 (en) 2007-06-15 2013-09-03 Sungkyunkwan University Foundation For Corporate Collaboration Bi-prediction coding method and apparatus, bi-prediction decoding method and apparatus, and recording medium
KR101442608B1 (en) * 2008-02-05 2014-09-25 삼성전자주식회사 Method and apparatus for encoding/decoding image efficiently
KR101377660B1 (en) 2008-09-30 2014-03-26 에스케이텔레콤 주식회사 Motion Vector Encoding/Decoding Method and Apparatus Using Multiple Motion Vector Estimation and Video Encoding/Decoding Method and Apparatus Using Same
KR101348613B1 (en) 2009-12-23 2014-01-10 한국전자통신연구원 Apparatus and method for image incoding/decoding
KR100978465B1 (en) * 2010-03-19 2010-08-26 성균관대학교산학협력단 Bi-prediction coding method and apparatus, bi-prediction decoding method and apparatus, and recording midium
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