Title:
MULTI-GRID METHOD AND APPARATUS USING V CYCLE
Document Type and Number:
WIPO Patent Application WO/2014/137042
Kind Code:
A1
Abstract:
Disclosed is a multi-grid method using a V cycle. The multi-grid method using a V cycle according to an embodiment of the present invention comprises: a pre-smoothing step for smoothing a cell having a fine level to calculate a first intermediate value and a first residual; a restriction step for down-sampling the cell having the fine level to calculate a cell having a coarse level and setting the first residual as a second residual of the cell having the coarse level; a middle smoothing step for calculating a high-frequency component value of the cell having the fine level and smoothing the high-frequency component value to calculate a smoothed high-frequency component value; an operation step for calculating a coarse value from the cell having the coarse level; a prolongation step for up-sampling the coarse value to transfer the up-sampled coarse value to the cell having the fine level, and adding the first intermediate value, the smoothed high-frequency component value and the coarse value to calculate a corrected intermediate value; and a post-smoothing step for smoothing the corrected intermediate value to calculate a second intermediate value.
Inventors:
HONG JEONG MO (KR)
JUNG HWI RYONG (KR)
KIM SUN TAE (KR)
JUNG HWI RYONG (KR)
KIM SUN TAE (KR)
Application Number:
PCT/KR2013/007401
Publication Date:
September 12, 2014
Filing Date:
August 16, 2013
Export Citation:
Assignee:
UNIV DONGGUK IND ACAD COOP (KR)
International Classes:
G06T17/00; G06T1/00
Foreign References:
| KR20120051865A | 2012-05-23 | |||
| JP2006293488A | 2006-10-26 | |||
| KR20100088081A | 2010-08-06 | |||
| US20070047810A1 | 2007-03-01 | |||
| JP2008197921A | 2008-08-28 |
Attorney, Agent or Firm:
EZ INTERNATIONAL PATENT & TRADEMARK LAW OFFICE (KR)
특허법인 이지 (KR)
특허법인 이지 (KR)
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