# US 2013/0156110 A1 · Image Processing System, Image Processing Method And Program

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- Number: US 2013/0156110 A1
- Document ID: US20130156110A1
- Status: Published application
- Kind: A1
- Application number: 13/758,602
- Filed: 2013-02-04
- Published: 2013-06-20
- Earliest claimed: 2010-03-01
- Assignees: Sony Corporation
- Inventors: Ohji Nakagami; Kazushi Sato; Yoichi Yagasaki
- Web page: https://patentgrep.com/patent/US20130156110A1

## CPC

- H04N 19/86: involving reduction of coding artifacts, e.g. of blockiness
- H04N 19/117: Filters, e.g. for pre-processing or post-processing (sub-band filter banks H04N19/635)
- H04N 19/124: Quantisation
- H04N 19/14: Coding unit complexity, e.g. amount of activity or edge presence estimation (H04N19/146 takes precedence)
- H04N 19/157: Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
- H04N 19/176: the region being a block, e.g. a macroblock
- H04N 19/80: Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation (H04N19/635, H04N19/86 take precedence)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

There is provided an image processing system and an image processing method able to suppress block distortion in the case of decoding Image data encoded in unit of blocks. A controlling unit selects a filtering content to be applied to the block image data based on the encoding types of the block image data to be filtered, and a filtering unit applies filtering to the block image data to be processed according to the filtering content selected by the controlling unit.

## Claims

### Claim 1

An image processing system for decoding an encoded image data having a plurality of block encoded image data which are generated from a plurality of block image data by encoding types defined in the respective block image data, said image processing system comprising:
a controlling unit configured to select a filtering method to be applied to the block image data based on said encoding types of the block image data to be filtered; and
a filtering unit configured to apply filtering to said block image data to be processed according to said filtering method selected by said controlling unit.

### Claim at position 2

-10. (canceled)

### Claim 11

An image processing method of decoding an encoded image data having a plurality of block encoded image data which are generated from a plurality of block image data by encoding types defined in the respective block image data, said image processing method including:
a first step of selecting a filtering method to be applied to the block image data based on said encoding type of the block image data to be filtered; and
a second step of applying filtering to said block image data to be processed according to said filtering method selected in said first step.

### Claim at position 4

-14. (canceled)