Title:
Medical image processing device, its medical purpose area extraction method and medical purpose area extraction processing program
Document Type and Number:
Japanese Patent JP6296385
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To extract a two-dimensional or three-dimensional object area with a simple operation in a short period of time from a plurality of two-dimensional tomographic images acquired by a medical image diagnostic device.SOLUTION: A control part 10 controls operations of a preprocessing part 20 and an image processing part 30, the preprocessing part 20 receives a designation input by a manual operation of an input part 40, acquires data of an object area and the approximate size thereof at the same time, and performs preprocessing for acquiring data of a non-object area, and the image processing part 30 generates a histogram of luminance data of a pixel of the object area and a histogram of luminance data of a pixel of the non-object area from the data of the object area and data showing the approximate size, and the data of the non-object area and data showing its approximate size acquired by the preprocessing part 20, approximates the respective histograms to a normal distribution, determines a threshold of area division by a Bays rule by using an approximate normal distribution of the object area and an approximate normal distribution of the non-object area, and extracts the object area and the non-object area.
Inventors:
Akiyoshi Ito
Toshiyuki Nakayama
Takayama Tadatoshi
Toshiyuki Nakayama
Takayama Tadatoshi
Application Number:
JP2014032066A
Publication Date:
March 20, 2018
Filing Date:
February 21, 2014
Export Citation:
Assignee:
NIHON UNIVERSITY
International Classes:
A61B6/03; A61B5/055
Domestic Patent References:
| JP2005245734A | ||||
| JP7129751A | ||||
| JP2008212396A |
Foreign References:
| WO2007072720A1 | ||||
| WO2009093525A1 |
Attorney, Agent or Firm:
Akira Koike
Seiji Iga
Toshiya Fujii
Seiji Iga
Toshiya Fujii