Title:
IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/038428
Kind Code:
A1
Abstract:
In order to provide an image processing device and the like whereby, in a process for recognizing specific regions in an image, regions that said image contains a plurality of and that contain gray-level variations can be recognized with high precision via a simple operation, a CPU (101) performs a threshold evaluation in which prescribed threshold conditions are applied to a target pixel (31) in an original 3D image (30) and a plurality of surrounding pixels (an evaluation range (33)) and marks said target pixel as a recognized pixel if the threshold conditions are satisfied. The threshold conditions preferably apply different thresholds to pixels in the same plane as the target pixel (31) and pixels in different planes. By successively moving the target pixel (31) (the evaluation range (33)) and repeating the abovementioned threshold evaluation, said threshold evaluation is performed on the entire original 3D image (30). This allows automated, high-precision recognition of tissue containing gray-level variations, such as cartilage, without an operator being required to set a start point.
Inventors:
GOTO YOSHIHIRO (JP)
Application Number:
PCT/JP2013/072802
Publication Date:
March 13, 2014
Filing Date:
August 27, 2013
Export Citation:
Assignee:
HITACHI MEDICAL CORP (JP)
International Classes:
A61B6/03; A61B5/055; G06T1/00
Domestic Patent References:
| WO2007135913A1 | 2007-11-29 |
Foreign References:
| JP2005073817A | 2005-03-24 | |||
| JP2004201730A | 2004-07-22 | |||
| JP2007534352A | 2007-11-29 | |||
| JP2007312838A | 2007-12-06 | |||
| JP2009226043A | 2009-10-08 | |||
| JP2007537812A | 2007-12-27 | |||
| JP2011514190A | 2011-05-06 | |||
| JP2005316583A | 2005-11-10 |
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