Title:
IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING PROGRAM, AND IMAGE DECODING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2006/019093
Kind Code:
A1
Abstract:
It is possible to improve encoding efficiency in image encoding for encoding image information for each region by creating a predicted image from frame image information which has been encoded in the past. A plurality of motion vector candidates is accumulated in advance in a motion vector accumulation memory (107). A motion vector selection unit (109) selects a motion vector to be used from the motion vectors accumulated in advance in the motion vector accumulation memory (107). A predicted image creation unit (104) creates a predicted image from a reference image by using the selected motion vector. A difference encoding unit (103) encodes the difference between the image information of the current region and the predicted image. A motion vector specification encoding unit (110) encodes information specifying the motion vector to be selected by the motion vector selection unit (109).
Inventors:
KIMATA HIDEAKI (JP)
KITAHARA MASAKI (JP)
KITAHARA MASAKI (JP)
Application Number:
PCT/JP2005/014945
Publication Date:
February 23, 2006
Filing Date:
August 16, 2005
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
KIMATA HIDEAKI (JP)
KITAHARA MASAKI (JP)
KIMATA HIDEAKI (JP)
KITAHARA MASAKI (JP)
International Classes:
H04N19/50; H04N19/103; H04N19/105; H04N19/134; H04N19/137; H04N19/139; H04N19/147; H04N19/174; H04N19/176; H04N19/196; H04N19/46; H04N19/503; H04N19/51; H04N19/513; H04N19/523; H04N19/527; H04N19/567; H04N19/573; H04N19/597; H04N19/615; H04N19/70; H04N19/80
Foreign References:
| JP2004088737A | 2004-03-18 | |||
| JP2004208258A | 2004-07-22 | |||
| JP2004194274A | 2004-07-08 |
Other References:
See also references of EP 1781042A4
Attorney, Agent or Firm:
Shiga, Masatake (Yaesu Chuo-k, Tokyo 53, JP)
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