Processing

Please wait...

Settings

Settings

Goto Application

1. WO2011007586 - METHODS AND SYSTEMS FOR REDUCING COMPRESSION ARTIFACTS

Publication Number WO/2011/007586
Publication Date 20.01.2011
International Application No. PCT/JP2010/050580
International Filing Date 13.01.2010
IPC
H04N 5/21 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
14Picture signal circuitry for video frequency region
21Circuitry for suppressing or minimising disturbance, e.g. moire or halo
G06T 5/20 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
20by the use of local operators
CPC
G06T 2207/10016
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10016Video; Image sequence
G06T 2207/20012
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
20Special algorithmic details
20004Adaptive image processing
20012Locally adaptive
G06T 5/002
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
001Image restoration
002Denoising; Smoothing
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 19/14
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
14Coding unit complexity, e.g. amount of activity or edge presence estimation
Applicants
  • SHARP KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • SU, Yeping (UsOnly)
  • PAN, Hao (UsOnly)
Inventors
  • SU, Yeping
  • PAN, Hao
Agents
  • HARAKENZO WORLD PATENT & TRADEMARK
Priority Data
12/502,08713.07.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHODS AND SYSTEMS FOR REDUCING COMPRESSION ARTIFACTS
(FR) PROCÉDÉ ET SYSTÈME POUR RÉDUCTION DES ARTEFACTS DE COMPRESSION
Abstract
(EN)
Aspects of the present invention are related to systems and methods for reducing compression artifacts. Decoded and displayed images and videos that have been compressed may exhibit visually objectionable artifacts. Aspects of the present invention relate to methods and systems for reducing visible artifacts by selectively filtering an image region based on a combination of a motion indicator and an edge-strength indicator.
(FR)
Les aspects de la présente invention portent sur des systèmes et des procédés de réduction des artefacts de compression. Les images et vidéos décodés et affichés qui ont été comprimés peuvent présenter des artefacts auxquels on peut faire visuellement objection. Les aspects de la présente invention portent sur des procédés et des systèmes de réduction des artefacts visibles par filtrage sélectif d'une région d'image basée sur une combinaison d'un indicateur de mouvement et d'un indicateur d'intensité de bord.
Latest bibliographic data on file with the International Bureau