Title:
RESPIRATORY FEATURE EXTRACTION METHOD BASED ON BODY SURFACE SALIENCY ANALYSIS
Document Type and Number:
WIPO Patent Application WO/2024/055386
Kind Code:
A1
Abstract:
Provided in the present application is a respiratory feature extraction method based on body surface saliency analysis. The method comprises: establishing a body surface voxel model of respiratory motion of a chest and abdomen, which includes acquiring point cloud information, generating a voxel model and extracting respiratory motion features; constructing a saliency evaluation function by means of performing saliency analysis on different regions of a body surface, and selecting, on the basis of the evaluation function, a body surface region having a high correlation with tumor motion; and performing voxelization processing on the body surface region, and obtaining effective one-dimensional representation information of the body surface region using a locally linear embedding dimension-reduction algorithm. Compared with existing methods, the method avoids the impact of redundant motion information of a body surface on the accuracy of an association model; and compared with a PCC method, the method provided in the present application can avoid harm caused to a human body by continuous exposure to X-rays. The motion information of the body surface can be more accurately acquired, which facilitates the establishment of a more accurate body surface-body interior motion information association model, thereby providing a higher treatment accuracy for a radiation therapy robot.
Inventors:
YU SHUMEI (CN)
YAO YAO (CN)
SUN RONGCHUAN (CN)
SUN LINING (CN)
YAO YAO (CN)
SUN RONGCHUAN (CN)
SUN LINING (CN)
Application Number:
PCT/CN2022/127637
Publication Date:
March 21, 2024
Filing Date:
October 26, 2022
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
G06T7/00; G06T17/00
Foreign References:
| CN115187608A | 2022-10-14 | |||
| CN110752004A | 2020-02-04 | |||
| CN114927215A | 2022-08-19 | |||
| CN109727672A | 2019-05-07 | |||
| US20120226152A1 | 2012-09-06 |
Attorney, Agent or Firm:
SUZHOU JIANSHAN INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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