The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 2006
Filed:
May. 21, 2002
Jun Masumoto, Suita, JP;
Yoshinobu Sato, Suita, JP;
Masatoshi Hori, Suita, JP;
Takamichi Murakami, Suita, JP;
Takeshi Johkoh, Suita, JP;
Hironobu Nakamura, Suita, JP;
Shinichi Tamura, Suita, JP;
Masaki Miyamoto, Tokyo, JP;
Jun Masumoto, Suita, JP;
Yoshinobu Sato, Suita, JP;
Masatoshi Hori, Suita, JP;
Takamichi Murakami, Suita, JP;
Takeshi Johkoh, Suita, JP;
Hironobu Nakamura, Suita, JP;
Shinichi Tamura, Suita, JP;
Masaki Miyamoto, Tokyo, JP;
AZE Ltd., Tokyo, JP;
Abstract
From CT images having captured an abdomen, a two-dimensional characteristic space is assumed, in which X and Y axes indicate CT values of image data taken in first and second time phases different from each other. In this space, a two-dimensional histogram concerning respective pixels located at the same position in the two time phases is taken as a sample distribution of pixels. A two-variable distribution function is applied to this sample distribution, so as to estimate a matrix distribution of pixels corresponding to the whole liver region. According to this matrix distribution, a range of CT value of pixels corresponding to the liver region is estimated.