UNIVERSIDADE FEDERAL DE MINAS GERAIS - UFMG;IVISION SISTEMAS DE IMAGEM E VISÃO S.A
发明人:
SILVA DE MIRANDA, Hudson Luiz,ETRUSCO MOREIRA, Luiz Fernando,ROMANO SILVA, Marco Aurélio,DE VASCONCELOS, Ado Jó
申请号：
IBIB2017/053738
公开号：
WO2018/002782A1
申请日:
2017.06.22
申请国别(地区):
IB
年份:
2018
代理人:
摘要：
The present invention describes a method for generating co-ordinate information on motion artifacts. The technology uses structured light techniques based on multiple projection patterns applied to three-dimensional image reconstruction steps in conjunction with data processing (shadow removal, background removal, random noise filtering and data sampling). The technology further provides a time sequence of three-dimensional data relating to the motion of an object of interest to which image capture is applied. It can be used in imaging diagnostic equipment, such as magnetic resonance equipment, besides tomographic machines for computer-assisted x-ray tomography or computer-assisted positron emission tomography, for example. The proposed method can track the patient's movements with six degrees of freedom (three rotational and three translational movements that are linearly independent) during data acquisition and provide position-tracking data over time on the basis of this information, in order to correct motion artifacts prospectively. The advantages are: elimination of fiducial markers, shortening the time and reducing the cost of imaging diagnostic procedures, besides ensuring the comfort and preserving the health of the patient, especially during procedures involving exposure to radiation.La présente invention concerne un procédé de génération d'informations de coordonnées relatives à des artéfacts de mouvement. La technologie utilise des techniques d'éclairage structuré basées sur de multiples normes de projection, appliquées aux étapes de reconstruction tridimensionnelle d'image, associée au traitement de données (suppression d'ombres, suppression de plan de fond, filtrage de bruit aléatoire et échantillonnage de données). La technologie permet en outre d'obtenir une séquence temporelle de données tridimensionnelles relatives au mouvement d'un objet d'intérêt soumis à une capture d'images. Elle peut s'appliquer à des équipements de diagnostic par image, comme
