公开(公告)号：US20200034964A1

公开(公告)日：2020-01-30

申请号：US16512800

申请日：2019-07-16

Applicant: Konica Minolta, Inc.

Inventor： Kenta SHIMAMURA

IPC: G06T7/00 ,  G06T7/20

Abstract: A dynamic image analysis apparatus includes a hardware processor that acquires an X-ray dynamic image including continuous frame images acquired by continuously capturing a living body having a heartbeat in time series; performs logarithmic conversion for a pixel value of the acquired X-ray dynamic image to create a logarithmically converted image; sets, as a reference frame image, one frame image based on a heartbeat phase in at least one of the X-ray dynamic image and the logarithmically converted image; calculates (i) a difference or ratio between the X-ray dynamic image as the reference frame image and the X-ray dynamic image as a comparative frame image which is another frame image or (ii) a difference or ratio between the logarithmically converted image as the reference frame image and the logarithmically converted image as the comparative frame image; and generates a blood flow analysis image.

公开(公告)号：US20190102893A1

公开(公告)日：2019-04-04

申请号：US16137486

申请日：2018-09-20

Applicant: KONICA MINOLTA, INC.

Inventor： Sho NOJI ,  Kenta SHIMAMURA

IPC: G06T7/33 ,  G06T7/246 ,  G06T7/73

CPC classification number: G06T7/337 ,  G06T7/11 ,  G06T7/12 ,  G06T7/248 ,  G06T7/74 ,  G06T2207/10116 ,  G06T2207/30061 ,  G06T2207/30101

Abstract: A dynamic image processing apparatus includes: a hardware processor that: extracts a lung-field region from at least one of a plurality of frame images of a chest dynamic image obtained by radiographing a dynamic state of a chest of an examinee; sets a feature point in a position that moves according to a movement of a lung field due to respiration in the lung-field region extracted by the hardware processor; searches a frame image other than a frame image in which the feature point has been set for a corresponding point that corresponds to the feature point set by the hardware processor, and estimates a correspondence relationship of each pixel in the lung-field region among the plurality of frame images in accordance with a positional relationship between the feature point set by the hardware processor and the corresponding point searched for by the hardware processor.