Title:
IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/150731
Kind Code:
A1
Abstract:
The image processing device is provided with: an acquisition unit for acquiring a radiographic image including a pixel to be corrected; a calculation unit for calculating the respective priorities of two directions intersecting with each other at the pixel to be corrected; and a determination unit for determining a pixel value of the pixel to be corrected by applying greater weighting to the pixel values of pixels along the direction of higher priority with respect to the pixel to be corrected and applying lesser weighting to the pixel values of pixels along the direction of lower priority with respect to the pixel to be corrected. When, for the calculation of the respective priorities of the two directions, the direction of calculation out of the two directions is defined as a first direction and the other direction as a second direction, the calculation unit uses the pixel values of multiple pixels including first pixels adjacent to the pixel to be corrected, second pixels adjacent to the first pixels in the first direction, and third pixels located on the opposite side from the first pixels or the second pixels with respect to a straight line extending in the second direction through the pixel to be corrected.
Inventors:
TAKENAKA KATSURO (JP)
SARUTA SHOSHIRO (JP)
TORII SOTA (JP)
SARUTA SHOSHIRO (JP)
TORII SOTA (JP)
Application Number:
PCT/JP2018/043717
Publication Date:
August 08, 2019
Filing Date:
November 28, 2018
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
H04N5/367; A61B6/00; G01T1/20; H04N5/32
Foreign References:
| JP2008022520A | 2008-01-31 | |||
| JP2003116060A | 2003-04-18 | |||
| JP2002033964A | 2002-01-31 |
Attorney, Agent or Firm:
OHTSUKA, Yasunori et al. (JP)
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