Title:
Image coding device, image coding method and program, image decoding device, image decoding method and program
Document Type and Number:
Japanese Patent JP6315911
Kind Code:
B2
Abstract:
The present invention is made to enable switching between lossless coding which prioritizes compatibility with a lossy coding process and lossless coding which prioritizes compression performance.An image coding apparatus of the present invention includes the following configuration. The image coding apparatus which encodes an image on a block-by-block basis includes a first coding unit and a second coding unit. The first coding unit performs irreversible compression coding on a received first block. The second coding unit performs reversible compression coding on a received second block. The second coding unit encodes the second block by using either of a first intra prediction mode for performing intra prediction on a block-by-block basis and a second intra prediction mode for performing intra prediction on a pixel-by-pixel basis.
Inventors:
Shingo Shima
Application Number:
JP2013143697A
Publication Date:
April 25, 2018
Filing Date:
July 09, 2013
Export Citation:
Assignee:
Canon Inc
International Classes:
H04N19/11; H04N19/46
Domestic Patent References:
| JP9009265A | ||||
| JP2013055494A |
Other References:
Benjamin Bross Fraunhofer HHI,High Efficiency Video Coding (HEVC) text specification draft 10 (for FDIS & Last Call)[online], JCTVC-L JCTVC-L1003_v34,インターネット,P.87,141-144
Attorney, Agent or Firm:
Takuma Abe
Sogo Kuroiwa
Sogo Kuroiwa