The University of Electro-Communications

Public University Corporation Yokohama City University

The University of Tokyo

Norihiro Koizumi

Kyohei Tomita

Kazushi Numata

Yu Nishiyama

Takashi Azuma

Hiroyuki Fukuda

Naohiko Sugita

Mamoru Mitsuishi

Hiroyuki Tsukihara

Ryosuke Kondo

Yoichiro Matsumoto

Atsushi Kayasuga

Kiyoshi Yoshinaka

Izumu Hosoi

Yukio Homma

Hideyo Miyazaki

Fumio Eura

Provided is an in vivo movement tracking apparatus configured to track a portion of interest that moves in vivo, in which accuracy and robustness of tracking are improved. The apparatus is configured to determine an estimated position of ah organ in a biological image based on the past movement of the organ and search for contour points corresponding to a plurality of control points, respectively, representing a contour shape of the organ in a region corresponding to the estimated position, to thereby determine an estimated contour of the organ based on the contour points. The in vivo movement tracking apparatus is configured to determine a position of a portion of interest, which moves in association with the organ, based on the estimated contour with reference to previously acquired sample data regarding a positional relationship between a contour of the organ and the portion of interest.

In vivo movement tracking apparatus

An in vivo motion tracking device tracking an in vivo motion that is a tracking target included in an ultrasonic image includes an image acquiring unit that is configured to acquire an ultrasonic image, an advance learning unit that is configured to perform advance learning using the ultrasonic image as learning data, and a tracking unit that is configured to track a position of the tracking target in an ultrasonic image including the tracking target after the advance learning performed by the advance learning unit.

In vivo motion tracking device and in vivo motion tracking method

Growing community of inventors

Chofu, Japan

Norihiro Koizumi