EP2014096A1 - Procede et dispositif de codage d'images en mouvement multivision - Google Patents

Procede et dispositif de codage d'images en mouvement multivision

Info

Publication number
EP2014096A1
EP2014096A1 EP07746362A EP07746362A EP2014096A1 EP 2014096 A1 EP2014096 A1 EP 2014096A1 EP 07746362 A EP07746362 A EP 07746362A EP 07746362 A EP07746362 A EP 07746362A EP 2014096 A1 EP2014096 A1 EP 2014096A1
Authority
EP
European Patent Office
Prior art keywords
image
residue signal
sampling
encoding
encoded
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP07746362A
Other languages
German (de)
English (en)
Other versions
EP2014096A4 (fr
Inventor
Suk-Hee Cho
Hyoung-Jin Kwon
Nam-Ho Hur
Jin-Woong Kim
Soo-In Lee
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.)
Electronics and Telecommunications Research Institute ETRI
Original Assignee
Electronics and Telecommunications Research Institute ETRI
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 Electronics and Telecommunications Research Institute ETRI filed Critical Electronics and Telecommunications Research Institute ETRI
Publication of EP2014096A1 publication Critical patent/EP2014096A1/fr
Publication of EP2014096A4 publication Critical patent/EP2014096A4/fr
Ceased legal-status Critical Current

Links

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
    • H04N19/10—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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/33—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the spatial domain
    • 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
    • H04N19/50—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
    • H04N19/53—Multi-resolution motion estimation; Hierarchical motion estimation
    • 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
    • H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
    • 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

Definitions

  • the present invention relates to a method and apparatus for encoding a multi-view moving picture; and, more particularly, to efficiently increasing a compression rate by down-sampling and encoding a multi- view moving picture without deteriorating a viewer' s sense of stereoscope.
  • a simple method for increasing a compression rate of a right image includes a method of changing a quantization parameter
  • QP quantization level
  • the former is simple, but has a difficulty in finding a proper QP value since a QP value where a coding error is noticeably seen according to details of the image. Since the latter lowers resolution of an original image, there is a loss and information of the original image is not used in encoding.
  • Fig. 1 shows a principle of conventional stereo encoding.
  • the left image refers to the left image for backward compatibility with a conventional 2D moving picture service.
  • Resolution of a right image is lowered in a horizontal direction by half through down- sampling.
  • the right image refers to the right and left images for encoding. That is, an image of a viewpoint, which is a reference, is encoded based on correlation information on a time axis, and images of other viewpoints are encoded based on correlation information on time and space axes.
  • a loss is generated from down-sampling in the referred left image.
  • Fig. 2 shows a conventional stereo encoding apparatus and realizes a concept of Fig. 1.
  • a left image is encoded according to a conventional video encoding method such as H.2 ⁇ x series and MPEG-x series.
  • a right image is encoded according to the conventional encoding method in a time axis.
  • a part for referring to the left image and predicting disparity is added in a space axis.
  • a process for down-sampling the left image according to the resolution of the right image is added and a loss is generated from the process.
  • An embodiment of the present invention is directed to efficiently increasing a compression rate by down- sampling and encoding a multi-view moving picture without deteriorating a viewer's sense of stereoscope.
  • Another embodiment of the present invention is directed to efficiently transmitting multi-view moving picture data to a limited transmission band.
  • Another embodiment of the present invention is directed to preventing a loss from generating due to down-sampling by directly using resolution of a reference image used in motion and disparity prediction without reducing the resolution of the reference image.
  • a method for encoding a multi-view moving picture including the steps of subtracting a pixel value of a reference image from a pixel value of an image to be encoded to thereby create a residue signal, lowering resolution by down-sampling the residue signal, and encoding the down-sampled residue signal .
  • an apparatus for encoding a multi-view moving picture including a means for subtracting a pixel value of a reference image from a pixel value of an image to be encoded to thereby create a residue signal, a means for lowering resolution by down- sampling the residue signal, and a means for encoding the down-sampled residue signal.
  • a method for decoding a multi-view moving picture including an encoded residue signal includes the steps of decoding the encoded residue signal, recovering original resolution by up- sampling the decoded residue signal, and recovering a present image by summing a residue signal of recovered resolution and a previous image.
  • an apparatus for decoding a multi-view moving picture including an encoded residue signal includes a means for decoding the encoded residue signal, a means for recovering original resolution by up- sampling the decoded residue signal, a means for recovering a present image by summing a residue signal of recovered resolution and a previous image.
  • the present invention When an image size is down-sampled, the present invention performs encoding by lowering resolution of a residue signal, which is a difference value not between an original image and a recovery image, but between a reference image and a present image, after motion and disparity prediction.
  • a residue signal which is a difference value not between an original image and a recovery image, but between a reference image and a present image
  • disparity prediction a block referred to in the left image does not have a loss caused by down-sampling since the original image is encoded without change of resolution. Therefore, in the block of the encoded right image, both of an original block and a reference block do not have a loss caused by down- sampling and only a loss caused by down-sampling of a residue signal showing a difference between pixel values of two blocks is generated. Accordingly, the present invention can efficiently increase a compression rate without changing a viewer' s sense of stereoscope and transmit multi-view moving picture data through a limited transmission band.
  • Fig. 1 describes a principle of conventional stereo encoding.
  • Fig. 2 shows a conventional stereo encoding apparatus .
  • Fig. 3 is a flowchart describing a multi-view moving picture encoding method according to the present invention.
  • Fig. 4 shows a multi-view moving picture encoding apparatus according to the present invention.
  • Fig. 5 is a flowchart showing a method for decoding encoded a multi-view moving picture including a residue signal and a motion vector or a disparity vector according to the present invention.
  • Fig. 6 shows a multi-view moving picture decoding apparatus according to the present invention.
  • Fig. 3 is a flowchart describing a multi-view moving picture encoding method according to the present invention.
  • a motion vector or a disparity vector of an image to be currently encoded i.e., a present image, is calculated with respect to a reference image at step S302.
  • Resolution is lowered by down-sampling a residue signal, which is a pixel value difference of a present image and a reference image and encoding is performed at step S304.
  • the resolution of the residue signal is lowered in interframe prediction of an image of another viewpoint with respect to an image of the reference viewpoint after motion and disparity prediction.
  • Encoding is performed through Discrete Cosine Transform (DCT), quantization, and entropy encoding. Presence of down-sampling or a rate is determined in a view of rate- distortion optimization. H.264 determines a coding mode of a block in a view of rate-distortion optimization.
  • H.264 means acquiring a cost function value reflecting distortion, which shows a difference between an actually required bit and an original image, when coding is performed as a specific mode, and determining a mode of the smallest cost function value as a coding mode of the block.
  • a cost function value reflecting distortion which shows a difference between an actually required bit and an original image, when a present frame block is encoded for each down-sampling rate, is calculated by applying the H.264 in determination of the down-sampling rate.
  • a sampling rate is determined when the cost function value is the smallest. For example, when 1 means compressing resolution of a residue signal without reducing the resolution of the residue signal and 1/2 means reducing the resolution of the residue signal by half in a horizontal direction.
  • An original resolution is recovered by decoding and up-sampling the encoded residue signal at step S306.
  • the present image is recovered at step S308 by summing a block of the recovered residue signal and a block of the reference image which is determined according to a motion vector or a disparity vector. Deblocking is performed in a block boundary of the recovered present image and a next reference image is stored at step S310.
  • the present invention does not perform down-sampling on the reference image, but performs motion and disparity prediction directly onto an image of the same size. Therefore, since exact prediction is possible in the motion and disparity prediction in comparison with the conventional method shown in Fig. 2, a block to be encoded may bring a reference block that a motion or disparity-predicted location designates without loss.
  • the procedure is the same as a conventional stereo codec.
  • the present invention does not perform down-sampling on an original image or a recovery image, but performs down-sampling on a residue signal, which is a difference value between a reference block and a present block after motion and disparity prediction.
  • a residue signal which is a difference value between a reference block and a present block after motion and disparity prediction.
  • the conventional method shown in Fig. 2 since an image down-sampling a right image sequence as a pre- process is inputted in the video encoder, the original image is not used and the recovery image used when the left image is referred to is also used after down- sampling.
  • the present invention has a merit as follows in comparison with the conventional method of Fig, 2.
  • the present invention is better than the conventional method only in the motion and disparity prediction. That is, the present invention is not useful for an intra mode for prediction in the inside of the frame, but is useful an inter mode for prediction between frames. Since the intra mode of the present invention does not perform down-sampling, the present invention generally has larger quantity of bits in comparison with the conventional method.
  • the down-sampled and encoded residue signal performs up-sampling on the decoded residue signal into a residue signal of the original size and performs motion/displacement compensation by being added with the reference block that the motion and disparity vector designates. Therefore, calculation complexity for down- sampling and up-sampling is added to the present invention in comparison with the codec of the conventional method.
  • motion prediction is performed based on the sizes of 16x16, 16x8, 8x16, 8x8, 8x4, 4x8, and 4x4 in the inter frame prediction of conventional H.26x series and MPEG-x series encoding, and DCT is performed on the basis of 4x4.
  • prediction is performed as the 16x16 size
  • encoding is performed through DCT and quantization of 1 motion vector, a brightness component residue signal of 16 4x4 blocks, and a color difference component residue signal of 8 4x4 blocks.
  • prediction is performed as an 8x8 size, the motion vector becomes 4.
  • the residue signal performs encoding through DCT and quantization of the brightness component residue signal of 16 4x4 blocks, and the color difference component residue signal of 8 4x4 blocks, just as the 16x16 size prediction.
  • the residue signal when the residue signal is down- sampled by half in a horizontal or vertical direction and prediction is performed as a 16x16 size, encoding is performed through DCT and quantization of 1 motion and disparity vector, a brightness component residue signal of 8 4x4 blocks, and a color difference component residue signal of 4 4x4 blocks. That is, the number of the motion and disparity vectors in the present invention is the same as the number of the motion and disparity vectors in the conventional encoding method. However, the number of the residue signals is reduced by half in the present invention. When prediction is performed as an 8x8 size, the motion and disparity vector becomes 4. However, the residue signal performs encoding through DCT and quantization of the brightness component residue signal of 16 4x4 blocks and the color difference component residue signal of 8 4x4 blocks, just as the 16x16 size prediction of the present invention.
  • the residue signal When the residue signal is down-sampled by half in a horizontal and vertical direction, prediction is performed as a 16x16 size and encoding is performed through DCT and quantization of the brightness component residue signal of 1 motion vector and 4 4x4 blocks, and the color difference component residue signal of 2 4x4 blocks. That is, the number of the motion and disparity vectors in the present invention is the same as the number of the motion and disparity vectors in the conventional encoding method. However, the residue signals are reduced by a fourth.
  • Fig. 4 shows a multi-view moving picture encoding apparatus according to the present invention. Since the multi-view moving picture encoding apparatus additionally includes a down-sampling unit 408 for down-sampling the residue signal and a up-sampling unit 416 for up-sampling a recovered residue signal in right image encoding, a configuration of the multi-view moving picture encoding apparatus is different from the encoding apparatus of Fig. 2.
  • a left image sequence is encoded on a time axis through a video encoder 402.
  • the recovered left image frame created in the video encoder 402 is stored in the reference frame buffer 404.
  • a motion/disparity predicting unit 422 performs motion or disparity prediction on a right image sequence according to kinds of images referred to in the reference frame buffer 404.
  • a motion vector or a disparity vector created in the motion/disparity predicting unit 422 is provided to a motion/disparity compensating unit 418 and an entropy encoding unit 412.
  • the motion/disparity compensating unit 418 reads the reference image of the reference frame buffer 404 designated by the motion vector or the disparity vector, and provides the reference image to a subtractor 406 and an adder 420.
  • the subtractor 406 subtracts a reference image from an original right image, creates a residue signal and provides the residue signal to the down-sampling unit 408.
  • the down-sampling unit 408 performs down-sampling on the provided residue signal, lowers resolution and provides the residue signal to a DCT/quantizing unit 410.
  • the DCT/quantizing unit 410 performs DCT and quantization on the residue signal of low resolution, and provides the created result to the entropy encoding unit 412 and an inverse quantization/IDCT unit 414.
  • the entropy encoding unit 412 performs entropy encoding on the residue signal provided from the DCT/quantizing unit 410, and the motion vector or the disparity vector provided from the motion/disparity predicting unit, and creates an encoding stream on the down-sampled right image.
  • the inverse quantization/IDCT unit 414 performs inverse quantization and IDCT on the residue signal on which DCT and quantization are performed, and decodes the residue signal.
  • the up-sampling unit 416 recovers the original resolution of the decoded residue signal and provides the residue signal to the adder 420.
  • a loss caused by down-sampling is not generated by performing motion and disparity prediction of the right image without lowering resolution of the reference image.
  • a reference block is brought by performing motion prediction in the recovered right image and prediction encoding is also performed on the brought reference block, a loss caused by down-sampling and up-sampling of the residue signal is generated.
  • the loss caused by down-sampling and up-sampling of the residue signal is smaller than the loss of the method of Fig. 2. Since the method of Fig. 2 performs up-sampling on the recovered image as a post-process, there is a loss in the residue signal and the signal of the reference block. However, the present invention has a loss only in the residue signal.
  • the merit of the present invention is noticeable particularly in disparity prediction. Since a block referred to in the left image in disparity prediction is encoded without change of resolution of the original image, there is no loss caused by down-sampling. Therefore, in the block of the encoded right image, both of the original block and the reference block do not have a loss caused by down-sampling and a loss caused by down- sampling of the residue signal showing a difference between pixel values of two blocks is generated.
  • Fig. 5 is a flowchart showing a method for decoding an encoded multi-view moving picture including a residue signal and a motion vector or a disparity vector according to the present invention.
  • the encoded residue signal is decoded through entropy decoding, inverse quantization and IDCT at step S502.
  • the original resolution of the residue signal is recovered at step S504 by up-sampling decoded low resolution residue signal.
  • a present image is recovered at step S506 by summing a block of the residue signal with recovered resolution and a block of a previous image determined according to the motion vector or the disparity vector. That is, a block is recovered by performing motion or disparity compensation according to the encoding method selected for the recovered residue signal. Deblocking is performed in a block boundary of the recovered present image through loop filtering at step S508.
  • Fig. 6 shows a multi-view moving picture decoding apparatus according to the present invention.
  • An encoding stream of a left image is recovered through a video decoder 602 and the recovered left image is provided to a motion/disparity compensating unit 614 through a switch 616.
  • the recovered right image is provided to the motion/disparity compensating unit 614 through the switch 616.
  • disparity compensation the recovered left image is provided to the motion/disparity compensating unit 614 through the switch 616.
  • An encoding stream on the down-sampled right image created through the encoding apparatus of Fig. 4 is decoded through an entropy decoding unit 604 and an inverse quantization/IDCT unit 606, recovers original resolution through a up-sampling unit 608, and provided to an adder 610. Deblocking is performed in a block boundary of the right image recovered through the adder 610 through a loop filter 612.
  • the decoder Since the left image is referred to as a time axis, the decoder does not perform disparity compensation, but performs motion compensation on a time axis.
  • the left image is recovered according to the same method as the conventional video decoder.
  • the right image sequentially performs entropy encoding, inverse quantization and IDCT and recovers a residue signal with lowered resolution.
  • the residue signal is recovered through a up-sampling process of recovering original resolution.
  • a recovering process that the recovered residue signal performs motion compensation or disparity compensation according to a selected encoding method is executed. Recovering the right image is completed by performing loop filtering for deblocking in a block boundary such as H.264.
  • the recovered left image and the right image are stored as a reference frame for a frame to be decoded later.
  • ADVANTAGEOUS EFFECTS MODE FOR INVENTION As described above, the technology of the present invention can be realized as a program and stored in a computer-readable recording medium, such as CD-ROM, RAM, ROM, floppy disk, hard disk and magneto-optical disk. Since the process can be easily implemented by those skilled in the art of the present invention, further description will not be provided herein.
  • the present invention When an image size is down-sampled, the present invention performs encoding by lowering resolution of the residue signal, which is a difference value between not an original image and a recovery image, but a reference image and a present image, after motion and disparity prediction.
  • a block referred to in the left image does not have a loss caused by down- sampling since the original image is encoded without change of resolution. Therefore, in the block of the encoded right image, both of an original block and a reference block do not have a loss caused by down- sampling and only a loss caused by down-sampling of a residue signal showing a difference between pixel values of two blocks is generated. Accordingly, the present invention can efficiently increase a compression rate without change of a viewer' s sense of stereoscope and transmit multi-view moving picture data through a limited transmission band.

Landscapes

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

Abstract

Procédé et dispositif permettant d'améliorer la résolution, au lieu de diminuer la résolution d'une image originale, et d'augmenter le taux de compression, au lieu de comprimer directement un image originale sur la base d'une information de l'image originale. Le procédé comprend les étapes suivantes: soustraire une valeur de pixel d'une image de référence depuis une valeur de pixel d'une image à coder afin de créer un signal résiduel, abaisser la résolution par sous-échantillonnage du signal résiduel, et codage du signal résiduel sous-échantillonné.
EP07746362A 2006-05-04 2007-05-04 Procede et dispositif de codage d'images en mouvement multivision Ceased EP2014096A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20060040711 2006-05-04
PCT/KR2007/002207 WO2007129840A1 (fr) 2006-05-04 2007-05-04 Procédé et dispositif de codage d'images en mouvement multivision

Publications (2)

Publication Number Publication Date
EP2014096A1 true EP2014096A1 (fr) 2009-01-14
EP2014096A4 EP2014096A4 (fr) 2010-12-22

Family

ID=38667917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07746362A Ceased EP2014096A4 (fr) 2006-05-04 2007-05-04 Procede et dispositif de codage d'images en mouvement multivision

Country Status (3)

Country Link
EP (1) EP2014096A4 (fr)
KR (1) KR101348276B1 (fr)
WO (1) WO2007129840A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101560182B1 (ko) 2008-01-07 2015-10-15 삼성전자주식회사 다시점 비디오 부호화 방법과 그 장치 및 다시점 비디오 복호화 방법과 그 장치
US8385670B2 (en) 2008-08-20 2013-02-26 Microsoft Corporation Image restoration by vector quantization utilizing visual patterns
KR20120118781A (ko) * 2011-04-19 2012-10-29 삼성전자주식회사 다시점 비디오를 위한 단일화된 스케일러블 비디오 부호화 방법 및 그 장치, 다시점 비디오를 위한 단일화된 스케일러블 비디오 복호화 방법 및 그 장치
WO2012177015A2 (fr) * 2011-06-20 2012-12-27 엘지전자 주식회사 Procédé et dispositif de codage/décodage d'image
JP5749595B2 (ja) * 2011-07-27 2015-07-15 日本電信電話株式会社 画像伝送方法、画像伝送装置、画像受信装置及び画像受信プログラム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4743965A (en) * 1985-05-07 1988-05-10 Nippon Hoso Kyokai Stereoscopic television picture transmission system
WO2007081908A1 (fr) * 2006-01-09 2007-07-19 Thomson Licensing Procede et appareil pouvant mettre en oeuvre un mode de mise a jour avec reduction de la resolution pour un codage video multifenetres

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000285260A (ja) * 1999-03-31 2000-10-13 Toshiba Corp 多視点画像の符号化方法及び任意視点画像の生成方法
JP2000349644A (ja) * 1999-06-08 2000-12-15 Toshiba Corp 多視点画像符号化復号化装置および多視点画像符号化復号化方法
KR100754388B1 (ko) * 2003-12-27 2007-08-31 삼성전자주식회사 레지듀 영상 다운/업 샘플링 방법 및 장치와 그를 이용한영상 부호화/복호화 방법 및 장치
JP2006115283A (ja) * 2004-10-15 2006-04-27 Mitsubishi Electric Corp データ圧縮装置およびデータ伸張装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4743965A (en) * 1985-05-07 1988-05-10 Nippon Hoso Kyokai Stereoscopic television picture transmission system
WO2007081908A1 (fr) * 2006-01-09 2007-07-19 Thomson Licensing Procede et appareil pouvant mettre en oeuvre un mode de mise a jour avec reduction de la resolution pour un codage video multifenetres

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
ABRAHAM A S ET AL: "Bandwidth-aware video encoding with adaptive image scaling" 2004 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO (ICME): JUNE 27 - 30, 2004, TAIPEI, TAIWAN, PISCATAWAY, NJ : IEEE OPERATIONS CENTER, US LNKD- DOI:10.1109/ICME.2004.1394149, vol. 1, 27 June 2004 (2004-06-27), pages 157-160, XP010770768 ISBN: 978-0-7803-8603-7 *
KARSTEN MÜLLER ET AL: "Multiview Coding using AVC", 75. MPEG MEETING; 16-01-2006 - 20-01-2006; BANGKOK; (MOTION PICTUREEXPERT GROUP OR ISO/IEC JTC1/SC29/WG11),, no. M12945, 11 January 2006 (2006-01-11), XP030041614, ISSN: 0000-0240 *
See also references of WO2007129840A1 *
TOURAPIS A M ET AL: "Reduced Resolution Update Mode Extension to the H.264 Standard" IMAGE PROCESSING,2005. ICIP 2005,, vol. 2, 11 September 2005 (2005-09-11), pages 910-913, XP010851202 ISBN: 978-0-7803-9134-5 *

Also Published As

Publication number Publication date
WO2007129840A1 (fr) 2007-11-15
EP2014096A4 (fr) 2010-12-22
KR101348276B1 (ko) 2014-01-10
KR20070108092A (ko) 2007-11-08

Similar Documents

Publication Publication Date Title
KR100678958B1 (ko) 인트라 ｂｌ 모드를 고려한 디블록 필터링 방법, 및 상기방법을 이용하는 다 계층 비디오 인코더/디코더
KR100481732B1 (ko) 다 시점 동영상 부호화 장치
KR102062821B1 (ko) 필터 정보 예측을 이용한 영상 부호화/복호화 방법 및 장치
JP6178326B2 (ja) デプスマップの推定および更新を用いる効率的なマルチビュー符号化
KR100891662B1 (ko) 비디오 신호 디코딩 및 인코딩 방법
JP5268645B2 (ja) カメラパラメータを利用して視差ベクトルを予測する方法、その方法を利用して多視点映像を符号化及び復号化する装置、及びそれを行うためのプログラムが記録された記録媒体
JP4991699B2 (ja) ビデオ信号のスケーラブルなエンコーディング方法およびデコーディング方法
RU2367113C1 (ru) Способ управления устранением блочности, учитывающий режим внутреннего bl, кодировщик-декодер многослойного видео, его использующий
JP4999864B2 (ja) 映像符号化方法及び復号方法、それらの装置、それらのプログラム並びにプログラムを記録した記憶媒体
KR100667830B1 (ko) 다시점 동영상을 부호화하는 방법 및 장치
KR100891663B1 (ko) 비디오 신호 디코딩 및 인코딩 방법
KR101227601B1 (ko) 시차 벡터 예측 방법, 그 방법을 이용하여 다시점 동영상을부호화 및 복호화하는 방법 및 장치
EP2479996A1 (fr) Codage vidéo avev une prédiction utilisant le même mode de codage pour toutes les composantes chromatiques
JP2007180981A (ja) 画像符号化装置、画像符号化方法、及び画像符号化プログラム
KR100738867B1 (ko) 다시점 동영상 부호화/복호화 시스템의 부호화 방법 및시점간 보정 변이 추정 방법
JP2007180982A (ja) 画像復号装置、画像復号方法、及び画像復号プログラム
EP2014096A1 (fr) Procede et dispositif de codage d'images en mouvement multivision
KR100704938B1 (ko) 스테레오스코픽 영상의 부호화/복호화 방법 및 장치
KR20150135457A (ko) 복수의 입력 화상을 인코딩하는 방법, 프로그램을 격납하는 기억 매체 및 장치
KR20120083200A (ko) 깊이 영상 부호화/복호화 장치 및 방법
WO2012044093A2 (fr) Procédé et appareil pour un codage et un décodage vidéo au moyen d'une prédiction de données de filtrage
KR20140124919A (ko) 객체 기반 적응적 밝기 보상 방법 및 장치
CN108353192B (zh) 视频处理系统和方法中的分层去块滤波
EP2047684B1 (fr) Procédé pour dériver des données de mouvement pour des images haute résolution à partir de données de mouvement d'images basse résolution et dispositifs de codage et décodage implémentant ledit procédé
KR100587952B1 (ko) 좌우영상의 비대칭적 크기로의 축소에 의한 보상을 수행하는 영상 부호화/복호화 장치 및 그 방법

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20081113

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

A4 Supplementary search report drawn up and despatched

Effective date: 20101123

RIC1 Information provided on ipc code assigned before grant

Ipc: H04N 13/00 20060101ALI20101117BHEP

Ipc: H04N 7/24 20060101AFI20080212BHEP

17Q First examination report despatched

Effective date: 20110826

DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R003

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20130425