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    Method of calibration of a stereoscopic camera system for use with a radio therapy treatment apparatus
    3.
    发明授权
    Method of calibration of a stereoscopic camera system for use with a radio therapy treatment apparatus 有权

    公开(公告)号：US11633629B2

    公开(公告)日：2023-04-25

    申请号：US17159845

    申请日：2021-01-27

    申请人： Vision RT Limited

    发明人： Ivan Meir ,  Martin Allen ,  Gideon Hale ,  Norman Smith ,  Robert Howe

    IPC分类号： A61N5/10 ,  G06T7/00 ,  A61B6/00 ,  G06T7/80

    摘要： The disclosed calibration method includes a calibration phantom positioned on an adjustable table on the surface of a mechanical couch, with the phantom's centre at an estimated location for the iso-centre of a radio therapy treatment apparatus. The calibration phantom is then irradiated using the apparatus, and the relative location of the center of the calibration phantom and the iso-centre of the apparatus is determined by analyzing images of the irradiation of the calibration phantom. The calibration phantom is then repositioned by the mechanical couch applying an offset corresponding to the determined relative location of the centre of the calibration phantom and the iso-centre of the apparatus to the calibration phantom. Images of the relocated calibration phantom are obtained, to which the offset has been applied, and the obtained images are processed to set the co-ordinate system of a stereoscopic camera system relative to the iso-centre of the apparatus.

    Method of calibration of a stereoscopic camera system for use with a radio therapy treatment apparatus
    6.
    发明授权
    Method of calibration of a stereoscopic camera system for use with a radio therapy treatment apparatus 有权

    公开(公告)号：US10456601B2

    公开(公告)日：2019-10-29

    申请号：US15946362

    申请日：2018-04-05

    申请人： Vision RT Limited

    发明人： Ivan Meir ,  Martin Allen ,  Gideon Hale ,  Norman Smith ,  Robert Howe

    IPC分类号： G06T7/00 ,  A61N5/10 ,  A61B6/00 ,  G06T7/80

    摘要： The disclosed calibration method includes a calibration phantom positioned on an adjustable table on the surface of a mechanical couch, with the phantom's center at an estimated location for the iso-center of a radio therapy treatment apparatus. The calibration phantom is then irradiated using the apparatus, and the relative location of the center of the calibration phantom and the iso-center of the apparatus is determined by analyzing images of the irradiation of the calibration phantom. The calibration phantom is then repositioned by the mechanical couch applying an offset corresponding to the determined relative location of the center of the calibration phantom and the iso-center of the apparatus to the calibration phantom. Images of the relocated calibration phantom are obtained, to which the offset has been applied, and the obtained images are processed to set the co-ordinate system of a stereoscopic camera system relative to the iso-center of the apparatus.

    Method of calibration of a stereoscopic camera system for use with a radio therapy treatment apparatus
    8.
    发明授权
    Method of calibration of a stereoscopic camera system for use with a radio therapy treatment apparatus 有权

    公开(公告)号：US10933258B2

    公开(公告)日：2021-03-02

    申请号：US16578905

    申请日：2019-09-23

    申请人： Vision RT Limited

    发明人： Ivan Meir ,  Martin Allen ,  Gideon Hale ,  Norman Smith ,  Robert Howe

    IPC分类号： A61N5/10 ,  G06T7/00 ,  A61B6/00 ,  G06T7/80

    摘要： The disclosed calibration method includes a calibration phantom positioned on an adjustable table on the surface of a mechanical couch, with the phantom's centre at an estimated location for the iso-centre of a radio therapy treatment apparatus. The calibration phantom is then irradiated using the apparatus, and the relative location of the center of the calibration phantom and the iso-centre of the apparatus is determined by analyzing images of the irradiation of the calibration phantom. The calibration phantom is then repositioned by the mechanical couch applying an offset corresponding to the determined relative location of the centre of the calibration phantom and the iso-centre of the apparatus to the calibration phantom. Images of the relocated calibration phantom are obtained, to which the offset has been applied, and the obtained images are processed to set the co-ordinate system of a stereoscopic camera system relative to the iso-centre of the apparatus.

    Patient monitor
    9.
    发明授权
    Patient monitor 有权

    公开(公告)号：US10183177B2

    公开(公告)日：2019-01-22

    申请号：US14424376

    申请日：2013-10-11

    申请人： VISION RT LIMITED

    发明人： Ivan Meir ,  Kathryn Cooper ,  Norman Smith ,  Gideon Hale ,  Martin Allen

    IPC分类号： A61N5/10 ,  A61B90/00 ,  H04N13/204 ,  G06T7/73 ,  G06T7/285

    摘要： Images obtained by a camera system (10) arranged to obtain stereoscopic images of a patient (20) undergoing radio-therapy are processed by a modeling unit (56,58) which generates a model of the surface of a patient (20) being monitored. Additionally the patient monitoring system processes image data not utilized to generate a model of the surface of a patient being monitored to determine further information concerning the treatment of the patient (20). Such additional data can comprise data identifying the relative location of the patient and a treatment apparatus (16). This can be facilitated by providing a number or retro-reflective markers (30-40) on a treatment apparatus (16) and a mechanical couch (18) used to position the patient (20) relative to the treatment apparatus (16) and monitoring the presence and location of the markers in the portions of the images obtained by the stereoscopic camera (10).

    PATIENT MONITOR
    10.
    发明申请
    PATIENT MONITOR 审中-公开
    病人监护

    公开(公告)号：US20150265852A1

    公开(公告)日：2015-09-24

    申请号：US14424376

    申请日：2013-10-11

    申请人： VISION RT LIMITED

    发明人： Ivan Meir ,  Kathryn Cooper ,  Norman Smith ,  Gideon Hale ,  Martin Allen

    IPC分类号： A61N5/10 ,  G06T7/20 ,  A61B19/00 ,  H04N13/02

    CPC分类号： A61N5/1049 ,  A61B90/39 ,  A61B2090/3904 ,  A61B2090/3937 ,  A61B2576/00 ,  A61N5/1069 ,  A61N5/1081 ,  A61N2005/1059 ,  A61N2005/1074 ,  G06T7/285 ,  G06T7/73 ,  G06T2207/10021 ,  G06T2207/30196 ,  G06T2207/30204 ,  H04N13/204

    摘要： Images obtained by a camera system (10) arranged to obtain stereoscopic images of a patient (20) undergoing radio-therapy are processed by a modeling unit (56,58) which generates a model of the surface of a patient (20) being monitored. Additionally the patient monitoring system processes image data not utilized to generate a model of the surface of a patient being monitored to determine further information concerning the treatment of the patient (20). Such additional data can comprise data identifying the relative location of the patient and a treatment apparatus (16). This can be facilitated by providing a number or retro-reflective markers (30-40) on a treatment apparatus (16) and a mechanical couch (18) used to position the patient (20) relative to the treatment apparatus (16) and monitoring the presence and location of the markers in the portions of the images obtained by the stereoscopic camera (10).

    摘要翻译： 通过布置成获得经历放射治疗的患者（20）的立体图像的相机系统（10）获得的图像由建模单元（56,58）处理，该建模单元生成被监视的患者（20）的表面的模型 。 另外，患者监视系统处理未被用于产生被监视患者的表面的模型的图像数据，以确定关于患者（20）的治疗的进一步的信息。 这样的附加数据可以包括识别患者和治疗装置（16）的相对位置的数据。 这可以通过在治疗设备（16）和用于将患者（20）相对于治疗设备（16）定位和监测的机械床（18）上提供数量或后向反射标记（30-40）而得到促进 在由立体照相机（10）获得的图像的部分中的标记的存在和位置。