MOVING IMAGE DECODING DEVICE

WIPO Patent Application WO/2012/160614

A1

In the present invention, encoded video image data (111) is decoded at a decoding unit (101), and a compression unit (102) compresses the decoded image (112) so as to store the image into a compressed image storage unit (105). An image decompression unit (103) decompresses the compressed decoded image (113). A filter information generation unit (104) uses the decompressed image (114) and the decoded image before compression (112) to generate filter information (115) so as to cause the image after being compressed and decompressed to approach the decoded image before compression (112), and stores the information into a filter information storage unit (106). A reference image decompression unit (107) decompresses the compressed image (116) which has been stored in the compressed image storage unit (105). A reference image filtering unit (108) uses the decompressed image (117) and the reference image-use filter information (118) stored in the filter information storage unit (106) to generate a reference image (119). Therefore, it is possible to reduce bandwidth to shared memory while suppressing deterioration of image quality when compressing the decoded image.

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SAWADA YUKI
YASUNAGA KOUTA
IMAKI SHUNSAKU
WATADA KAZUHIRO
BITOU SHINJI

PCT/JP2011/004748

November 29, 2012

August 25, 2011

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PANASONIC CORP (JP)
SAWADA YUKI
YASUNAGA KOUTA
IMAKI SHUNSAKU
WATADA KAZUHIRO
BITOU SHINJI

H04N7/32

WO2011039931A1

2011-04-07

JP2007266970A	2007-10-11
JPH09247673A	1997-09-19
JP2000004440A	2000-01-07
JP2000165861A	2000-06-16

YI-JEN CHIU ET AL.: "Adaptive (Wiener) Filter for Video Compression, ITU- Telecommunications Standardization Sector STUDY GROUP 16 Question 6 Video Coding Experts Group (VCEG) 35th Meeting", VCEG-AI14, ITU-T, July 2008 (2008-07-01), BERLIN, GERMANY
TAKESHI CHUJOH ET AL.: "Block-based Adaptive Loop Filter, ITU-Telecommunications Standardization Sector STUDY GROUP 16 Question 6 Video Coding Experts Group (VCEG) 35th Meeting", VCEG-AI18, ITU-T, July 2008 (2008-07-01), BERLIN, GERMANY

OGURI, Shohei et al. (JP)
Shohei Oguri (JP)

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