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1. WO2013006573 - JOINT SUB-PIXEL INTERPOLATION FILTER FOR TEMPORAL PREDICTION

Publication Number WO/2013/006573
Publication Date 10.01.2013
International Application No. PCT/US2012/045297
International Filing Date 02.07.2012
IPC
H04N 7/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
H04N 7/36 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
32involving predictive coding
36using temporal prediction
H04N 7/46 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
32involving predictive coding
46using subsampling at the coder and sample restitution by interpolation at the coder or decoder
CPC
G06T 7/238
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
20Analysis of motion
223using block-matching
238using non-full search, e.g. three-step search
H04N 19/117
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
117Filters, e.g. for pre-processing or post-processing
H04N 19/139
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
136Incoming video signal characteristics or properties
137Motion inside a coding unit, e.g. average field, frame or block difference
139Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
H04N 19/176
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised 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
17the unit being an image region, e.g. an object
176the region being a block, e.g. a macroblock
H04N 19/523
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
523with sub-pixel accuracy
H04N 19/577
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
577Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
Applicants
  • MOTOROLA MOBILITY LLC [US]/[US] (AllExceptUS)
  • MINOO, Koohyar [US]/[US] (UsOnly)
  • LOU, Jian [CN]/[US] (UsOnly)
  • FANG, Xue [CN]/[US] (UsOnly)
  • PANUSOPONE, Krit [TH]/[US] (UsOnly)
  • WANG, Limin [US]/[US] (UsOnly)
  • BAYLON, David, M. [US]/[US] (UsOnly)
Inventors
  • MINOO, Koohyar
  • LOU, Jian
  • FANG, Xue
  • PANUSOPONE, Krit
  • WANG, Limin
  • BAYLON, David, M.
Agents
  • PAYNE, Susan, R.
Priority Data
13/540,27002.07.2012US
61/504,13901.07.2011US
61/506,58611.07.2011US
61/535,94116.09.2011US
61/538,10722.09.2011US
61/539,42026.09.2011US
61/557,42209.11.2011US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) JOINT SUB-PIXEL INTERPOLATION FILTER FOR TEMPORAL PREDICTION
(FR) FILTRE D'INTERPOLATION DE SOUS-PIXEL COMBINÉ POUR UNE PRÉDICTION TEMPORELLE
Abstract
(EN)
A method determines a plurality of interpolation filters for use in interpolating sub-pel values for a temporal prediction process of video content. The plurality of interpolation filters are designed based on sub-pel offsets for two reference blocks. The method determines a first sub-pel offset for a first reference block for the unit of video content and determines a second sub-pel offset for a second reference block for a unit of video content. A set of interpolation filters is determined to interpolate a set of sub-pel pixel values for use in the temporal prediction process for the unit of video content. The set of interpolation filters is designed for the first sub-pel offset and the second sub-pel offset and is used to interpolate a first sub-pel pixel value for the first reference block and a second sub-pel value for the second reference block.
(FR)
Un procédé détermine une pluralité de filtres d'interpolation pour une utilisation dans l'interpolation de valeurs de sous-pixel pour un processus de prédiction temporelle d'un contenu vidéo. La pluralité de filtres d'interpolation sont conçus sur la base de décalages de sous-pixel pour deux blocs de référence. Le procédé détermine un premier décalage de sous-pixel pour un premier bloc de référence pour l'unité de contenu vidéo et détermine un second décalage de sous-pixel pour un second bloc de référence pour une unité de contenu vidéo. Un ensemble de filtres d'interpolation est déterminé pour interpoler un ensemble de valeurs de pixel de sous-pixel pour une utilisation dans le processus de prédiction temporelle pour l'unité de contenu vidéo. L'ensemble de filtres d'interpolation est conçu pour le premier décalage de sous-pixel et le second décalage de sous-pixel et est utilisé pour interpoler une première valeur de pixel de sous-pixel pour le premier bloc de référence et une seconde valeur de sous-pixel pour le second bloc de référence.
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