Title:
RESPIRATORY MOTION MODEL CONSTRUCTION METHOD AND UNMARKED RESPIRATORY MOTION PREDICTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/283866
Kind Code:
A1
Abstract:
A respiratory motion model construction method and an unmarked respiratory motion prediction method. The construction method comprises: obtaining body surface motion sequence image data of an object to be predicted during breathing within a time period (S10); generating, according to the body surface motion sequence image data, images respectively corresponding to a head end position frame and a tail end position frame of at least one motion time zone, wherein each motion time zone does not exceed 1/2 of a respiratory motion cycle; performing elastic registration processing on the images respectively corresponding to the head end position frame and the tail end position frame of each motion time zone to obtain a position offset, and performing interpolation calculation using the position offset to obtain relative offsets corresponding to other position frames in each motion time zone (S30); and calculating and constructing a respiratory motion model according to the position offset and the relative offsets. The respiratory motion model constructed by means of the method can reflect the overall motion trend; moreover, during actual prediction, there is no need to mark said object, such that surface motion information is represented to the maximum extent.
Inventors:
XIONG JING (CN)
PENG HUIXIAN (CN)
XIA ZEYANG (CN)
PENG HUIXIAN (CN)
XIA ZEYANG (CN)
Application Number:
PCT/CN2021/106415
Publication Date:
January 19, 2023
Filing Date:
July 15, 2021
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
G06T17/00
Foreign References:
| CN111179409A | 2020-05-19 | |||
| CN209785384U | 2019-12-13 | |||
| CN106056589A | 2016-10-26 | |||
| CN109727672A | 2019-05-07 | |||
| CN111161333A | 2020-05-15 | |||
| CN106446572A | 2017-02-22 | |||
| CN104268895A | 2015-01-07 | |||
| US20200069971A1 | 2020-03-05 |
Attorney, Agent or Firm:
MING & YUE INTELLECTUAL PROPERTY LAW FIRM (CN)
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