Title:
Image decoding unit
Document Type and Number:
Japanese Patent JP6082440
Kind Code:
B2
Abstract:
An image encoding and decoding apparatus and method are provided. The image encoding and decoding apparatus includes: an encoding unit adjusting at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicting a pixel value of a block of interest by performing an operation on a pixel value of at least one block having pixel value similar to the pixel value of the block of interest among blocks included in a previous image and the at least one adjusted weight value, and encoding the pixel value of the block of interest using the predicted pixel value of the block of interest; and a decoding unit adjusting at least one weight value adaptively to the number of bits, restoring the predicted pixel value of the block of interest by performing an operation on the pixel value of at least one block having pixel value similar to the pixel value of the block of interest among blocks included in the restored previous image and the at least one adjusted weight value, and decoding the pixel value of the block of interest using the restored pixel value, wherein the previous image refers to an image displayed prior to the current image, and the block of interest is a target block of interest among blocks belonging to the current image.
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Inventors:
Gold bun
Zhao Star
Kim Yu Dike
Zhao Star
Kim Yu Dike
Application Number:
JP2015154313A
Publication Date:
February 15, 2017
Filing Date:
August 04, 2015
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
H04N19/503; H04N19/60; H03M7/36; H04N19/103; H04N19/105; H04N19/11; H04N19/136; H04N19/167; H04N19/196; H04N19/50; H04N19/61; H04N19/625; H04N19/85; H04N19/91
Domestic Patent References:
| JP5775950B2 | ||||
| JP2015201892A | ||||
| JP10136385A | ||||
| JP3247091A | ||||
| JP10248072A | ||||
| JP9163376A |
Other References:
Woo-Shik Kim, et al.,Proposal for the unsolved issues in Professional Extensions,Joint Video Team (JVT) of ISO/IEC MPEG & ITU-T VCEG (ISO/IEC JTC1/SC29/WG11 and ITU-T SG16 Q.6) PExt Ad Hoc Group Meeting 22-24 July, 2003, Trondheim,2003年 7月24日,JVT-I012r2.doc
Woo-Shik Kim, et al.,Proposal for the unsolved issues in Professional Extensions II,Joint Video Team (JVT) of ISO/IEC MPEG & ITU-T VCEG (ISO/IEC JTC1/SC29/WG11 and ITU-T SG16 Q.6) PExt Ad Hoc Group Meeting 22-24 July, 2003, Trondheim,2003年 7月24日,JVC-I012r3.doc
Woo-Shik Kim, et al.,Proposal for the unsolved issues in Professional Extensions II,Joint Video Team (JVT) of ISO/IEC MPEG & ITU-T VCEG (ISO/IEC JTC1/SC29/WG11 and ITU-T SG16 Q.6) PExt Ad Hoc Group Meeting 22-24 July, 2003, Trondheim,2003年 7月24日,JVC-I012r3.doc
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki
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