MX9705999A - Estimacion de disparidad optima para la codificacion de video estereoscopica. - Google Patents

Estimacion de disparidad optima para la codificacion de video estereoscopica.

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Publication number
MX9705999A
MX9705999A MX9705999A MX9705999A MX9705999A MX 9705999 A MX9705999 A MX 9705999A MX 9705999 A MX9705999 A MX 9705999A MX 9705999 A MX9705999 A MX 9705999A MX 9705999 A MX9705999 A MX 9705999A
Authority
MX
Mexico
Prior art keywords
picture
view picture
square
macroblock
level
Prior art date
Application number
MX9705999A
Other languages
English (en)
Other versions
MXPA97005999A (es
Inventor
Xuemin Chen
Vincent Liu
Original Assignee
Nextlevel Systems 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
Application filed by Nextlevel Systems Inc filed Critical Nextlevel Systems Inc
Publication of MX9705999A publication Critical patent/MX9705999A/es
Publication of MXPA97005999A publication Critical patent/MXPA97005999A/es

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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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/50—Depth or shape recovery
    • G06T7/55—Depth or shape recovery from multiple images
    • G06T7/593—Depth or shape recovery from multiple images from stereo images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/97—Determining parameters from multiple pictures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/004—Predictors, e.g. intraframe, interframe coding
    • 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
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/194—Transmission of image signals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10004—Still image; Photographic image
    • G06T2207/10012—Stereo images
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/106—Processing image signals
    • H04N13/133—Equalising the characteristics of different image components, e.g. their average brightness or colour balance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/106—Processing image signals
    • H04N13/161—Encoding, multiplexing or demultiplexing different image signal components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/189—Recording image signals; Reproducing recorded image signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H04N13/207—Image signal generators using stereoscopic image cameras using a single 2D image sensor
    • H04N13/218—Image signal generators using stereoscopic image cameras using a single 2D image sensor using spatial multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H04N13/239—Image signal generators using stereoscopic image cameras using two 2D image sensors having a relative position equal to or related to the interocular distance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/296—Synchronisation thereof; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N2013/0074—Stereoscopic image analysis
    • H04N2013/0081—Depth or disparity estimation from stereoscopic image signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

La estimacion de disparidad entre los valores de luminancia del pixel de vista derecha e izquierda en una señal de video estereoscopica se optimiza al determinar el mínimo error de cuadro mínimo entre los macrobloques de las imágenes de vista derecha e izquierda. También se determina los coeficientes de transformacion afines y los vectores de disparidad que corresponde al error mínimo y se transmiten en la corriente de datos para utilizarse por un decodificador al reconstruir la imagen de vista derecha. El esquema puede implementarse y sea, localmente en el nivel de macrobloque o de manera global en el nivel de imagen.. En el nivel de macrobloque, la optimizacion del mínimo error cuadro puede ocurrir para cada macrobloque individual en la imagen de vista derecha. En esta caso, se proporcionan los coeficientes de transformacion afines par cada macrobloque. En el nivel de imagen, la suma de los mínimos errores de cuadro se minimiza después de que se comparan los bloques de la imagen de vista derecha con la imagen de vista izquierda. En este caso solo se requiere un conjunto de coeficientes de transformacion afines para la imagen de vista derecha completa. O, puede realizarse la comparacion de bloques entre una imagen de vista izquierda transformada de manera afín con la imagen de vista derecha, después de minimizar la suma de los mínimos errores de cuadro. El esquema es particularmente util para minimizar los efectos del desequilibrio de luminancia de canal transversal debido a las variaciones de la cámara y las escenas con cambios significativos en la brillantes o el contraste, y es compatible con los sistemas de video estereoscopicos tales como el sistema MPEG de Perfil de Multiples Vistas (MVP).
MXPA/A/1997/005999A 1996-08-06 1997-08-06 Estimacion de disparidad optima para lacodificacion de video estereoscopica MXPA97005999A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/692,630 US5652616A (en) 1996-08-06 1996-08-06 Optimal disparity estimation for stereoscopic video coding
US08692630 1996-08-06

Publications (2)

Publication Number Publication Date
MX9705999A true MX9705999A (es) 1998-07-31
MXPA97005999A MXPA97005999A (es) 1998-11-09

Family

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Also Published As

Publication number Publication date
DE69726508D1 (de) 2004-01-15
DE69726508T2 (de) 2004-09-23
CA2212069A1 (en) 1998-02-06
NO973602L (no) 1998-02-09
EP0823826A3 (en) 1999-04-14
JPH10257527A (ja) 1998-09-25
NO973602D0 (no) 1997-08-05
HK1010297A1 (en) 1999-06-17
CN1179065A (zh) 1998-04-15
US5652616A (en) 1997-07-29
EP0823826B1 (en) 2003-12-03
CA2212069C (en) 2001-06-12
TW404123B (en) 2000-09-01
EP0823826A2 (en) 1998-02-11
KR19980018426A (ko) 1998-06-05
CN1084568C (zh) 2002-05-08

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