EYELID DETECTION DEVICE AND PROGRAM
    41.
    发明申请
    EYELID DETECTION DEVICE AND PROGRAM 有权
    眼睛检测装置和程序

    公开(公告)号:US20130101225A1

    公开(公告)日:2013-04-25

    申请号:US13805597

    申请日:2011-07-06

    IPC分类号: G06K9/00

    摘要: An eyelid detection device that, based on first order differential values and second order differential values of vertical density change at an eyelid boundary in an eye image, shifts the second order differential values upwards by ¼ of the cycle of density change frequency of an eyelid boundary and combines the first order differential values and the second order differential values to compute upper eyelid feature amounts. The eyelid detection device detects a boundary between an upper eyelid and eyeball based on peak points in the vertical direction of the computed upper eyelid feature amounts. Consequently, the boundary between an eyelid and eyeball can be accurately detected even when the eyelid has been applied with makeup.

    摘要翻译: 一种眼睑检测装置,其基于眼图中的眼睑边界处的垂直密度变化的一阶微分值和二阶微分值,将二阶微分值向上移动眼睑边界的密度变化频率周期的1/4 并组合一阶微分值和二阶微分值以计算上眼睑特征量。 眼睑检测装置基于计算的上眼睑特征量的垂直方向上的峰值点来检测上眼睑和眼球之间的边界。 因此,即使当眼睑已经被化妆时,也能够精确地检测眼睑和眼球之间的边界。

    RADIOLOGICAL IMAGING APPARATUS
    43.
    发明申请
    RADIOLOGICAL IMAGING APPARATUS 有权
    放射成像装置

    公开(公告)号:US20110280365A1

    公开(公告)日:2011-11-17

    申请号:US13165367

    申请日:2011-06-21

    IPC分类号: A61B6/03 G01N23/04

    摘要: A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed. The image pickup device includes a large number of radiation detectors and radiation detector support plates. A large number of radiation detectors are mounted around the circumference of a through-hole and arranged in the axial direction of the through-hole. The radiation detectors are arranged in three layers formed radially with respect to the center of the through-hole and mounted on the lateral surfaces of the radiation detector support plates. Since the radiation detectors are not only arranged in the axial direction and circumferential direction of the through-hole but also arrayed in the radial direction, it is possible to obtain accurate information about a γ-ray arrival position in the radial direction of the through-hole (the positional information about a radiation detector from which a γ-ray image pickup signal is output). The use of accurate information about γ-ray arrival increases the tomogram accuracy. As a result, the present invention enhances the, tomogram accuracy, that is, the PET examination accuracy.

    摘要翻译: 本发明的放射学成像装置包括:图像拾取装置和设有床的医疗检查者保持装置。 图像拾取装置包括大量的辐射检测器和辐射检测器支撑板。 大量的辐射探测器安装在通孔的圆周周围并沿通孔的轴向布置。 辐射检测器被布置成相对于通孔的中心径向形成的三层,并且安装在辐射检测器支撑板的侧表面上。 由于辐射检测器不仅沿通孔的轴向和圆周方向布置,而且沿径向排列,可以获得关于通孔的径向上的γ射线到达位置的准确信息, (关于从其输出γ射线摄像信号的放射线检测器的位置信息)。 使用关于γ射线到达的准确信息可以增加断层图像的准确性。 结果,本发明提高了断层图像精度,即PET检查精度。

    RADIOLOGICAL IMAGING APPARATUS
    45.
    发明申请
    RADIOLOGICAL IMAGING APPARATUS 有权
    放射成像装置

    公开(公告)号:US20090092229A1

    公开(公告)日:2009-04-09

    申请号:US12331299

    申请日:2008-12-09

    IPC分类号: G01N23/04

    摘要: A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed. The image pickup device includes a large number of radiation detectors and radiation detector support plates. A large number of radiation detectors are mounted around the circumference of a through-hole and arranged in the axial direction of the through-hole. The radiation detectors are arranged in three layers formed radially with respect to the center of the through-hole and mounted on the lateral surfaces of the radiation detector support plates. Since the radiation detectors are not only arranged in the axial direction and circumferential direction of the through-hole but also arrayed in the radial direction, it is possible to obtain accurate information about a γ-ray arrival position in the radial direction of the through-hole (the positional information about a radiation detector from which a γ-ray image pickup signal is output). The use of accurate information about γ-ray arrival increases the tomogram accuracy. As a result, the present invention enhances the tomogram accuracy, that is, the PET examination accuracy.

    摘要翻译: 本发明的放射学成像装置包括:图像拾取装置和设有床的医疗检查者保持装置。 图像拾取装置包括大量的辐射检测器和辐射检测器支撑板。 大量的辐射探测器安装在通孔的圆周周围并沿通孔的轴向布置。 辐射检测器被布置成相对于通孔的中心径向形成的三层,并且安装在辐射检测器支撑板的侧表面上。 由于辐射检测器不仅沿着通孔的轴向方向和圆周方向布置,而且沿径向排列,可以获得关于通孔的径向方向上的伽马射线到达位置的准确信息, (关于从其输出伽马射线摄像信号的放射线检测器的位置信息)。 使用关于伽马射线到达的准确信息增加了断层图像的准确性。 结果,本发明增强了断层图像精度,即PET检查精度。

    EYELID DETECTION APPARATUS AND PROGRAM THEREFOR
    46.
    发明申请
    EYELID DETECTION APPARATUS AND PROGRAM THEREFOR 有权
    眼睛检测装置及其程序

    公开(公告)号:US20080226138A1

    公开(公告)日:2008-09-18

    申请号:US12046715

    申请日:2008-03-12

    IPC分类号: G06K9/00

    摘要: An eyelid detection apparatus includes edge image generating means for generating an edge image representing a magnitude of pixel value change per pixel in a predetermined direction in a region including an eye, based upon an image of the region; local peak value point searching means for searching a local peak value point, where the magnitude of pixel value change reaches a local peak value in the predetermined direction, in the edge image; and boundary point detecting means for detecting at least one of a first boundary point indicating a boundary between an upper eyelid and an eyeball and a second boundary point indicating a boundary between a lower eyelid and the eyeball, based upon a point which is shifted from the local peak value point in a direction towards the eyeball.

    摘要翻译: 眼睑检测装置包括边缘图像生成装置,用于基于该区域的图像,生成表示在包括眼睛的区域中的每个像素在每个像素上的像素值变化幅度的边缘图像; 局部峰值点搜索装置,用于在边缘图像中搜索像素值变化的幅度达到预定方向上的局部峰值的局部峰值点; 以及边界点检测装置,用于基于从所述眼睑和所述眼球偏移的点检测指示上眼睑和眼球之间的边界的第一边界点和指示下眼睑和眼球之间的边界的第二边界点中的至少一个 局部峰值点朝向眼球方向。

    EYELID DETECTING APPARATUS, EYELID DETECTING METHOD AND PROGRAM THEREOF
    47.
    发明申请
    EYELID DETECTING APPARATUS, EYELID DETECTING METHOD AND PROGRAM THEREOF 有权
    眼睛检测装置,眼睛检测方法及其程序

    公开(公告)号:US20080151186A1

    公开(公告)日:2008-06-26

    申请号:US11962350

    申请日:2007-12-21

    IPC分类号: A61B3/14

    摘要: An eyelid detecting apparatus includes an image capturing portion for capturing a face image, a red-eye effect detecting portion for detecting a red-eye effect in which a light appears red at the pupil in the face image, the light entering through the pupil, reflecting on a choroidea of the eye, and exiting from the pupil, an eyelid detecting portion for detecting an upper eyelid and a lower eyelid in the face image on the basis of an edge appearing on a boundary between a bright portion and a dark portion and the eyelid detecting portion ignoring the edge of a red-eye effect occurring pupil so as not to be considered as the upper eyelid and the lower eyelid when the red-eye effect detecting portion detects the red-eye effect.

    摘要翻译: 眼睑检测装置包括:用于拍摄面部图像的图像拍摄部分;红眼效果检测部分,用于检测在面部图像中的瞳孔处出现红色的红眼效果;通过瞳孔进入的光; 反射在眼睛的睫状体上并从瞳孔离开的眼睑检测部分,用于基于出现在亮部和暗部之间的边界上的边缘检测面部图像中的上眼睑和下睑;以及 所述眼睑检测部在所述红眼效果检测部检测到所述红眼效果的情况下,忽视发生瞳孔的边缘而不被认为是上眼睑和下睑。

    Radiation detector, radiation detector element, and radiation imaging apparatus
    48.
    发明授权
    Radiation detector, radiation detector element, and radiation imaging apparatus 失效
    辐射检测器,辐射检测器元件和放射线成像设备

    公开(公告)号:US07378662B2

    公开(公告)日:2008-05-27

    申请号:US11491197

    申请日:2006-07-24

    IPC分类号: G01T1/161

    CPC分类号: G01T1/2928

    摘要: In a gamma camera, a plurality of radiation detector elements having a rod-shaped first electrode, a semiconductor device surrounds the first electrode to contact with it for entering a radiation, and a second electrode provided for the side surface of the semiconductor device are detachably attached to a holding member. The holding member has a first electrode contact portion contacted with the first electrode and a second electrode contact portion contacted with the second electrode. A collimator in which a plurality of radiation paths provided corresponding to the plurality of radiation detector elements are formed is arranged on the radiation entering side of the plurality of radiation detector elements. A γ-ray detection signal outputted from the first electrode contact portion is sent to a signal processing integrated circuit. A high voltage is applied to the second electrode via the second electrode contact portion.

    摘要翻译: 在伽马照相机中,具有棒状第一电极的多个辐射检测器元件,包围第一电极以与其接触以进入辐射的半导体器件以及为半导体器件的侧表面设置的第二电极是可拆卸的 附着于握持构件。 保持构件具有与第一电极接触的第一电极接触部分和与第二电极接触的第二电极接触部分。 在多个辐射检测器元件的辐射入射侧设置准直器,其中形成有与多个辐射检测器元件对应的多个辐射路径。 从第一电极接触部分输出的伽马射线检测信号被发送到信号处理集成电路。 经由第二电极接触部分向第二电极施加高电压。

    Coincidence counting method of γray and nuclear medicine diagnostic apparatus
    50.
    发明授权
    Coincidence counting method of γray and nuclear medicine diagnostic apparatus 失效
    gammaray和核医学诊断仪的一致性计数方法

    公开(公告)号:US07274021B2

    公开(公告)日:2007-09-25

    申请号:US11405626

    申请日:2006-04-18

    IPC分类号: G01T1/164

    CPC分类号: G01T1/172

    摘要: A γ-ray signal processing section 60′ determines a detection time of a γ ray based on a α-ray detection signal outputted from a semiconductor radiation detector for detecting the γ ray, and determines the energy of the γ ray. Then, a time correction circuit 70 obtains, based on the energy of the γ ray, a detection value of the detection time that corresponds to the energy of the γ ray from a time correction table indicating the relationship between the energy of the γ ray and the correction value of the detection time of the γ ray, and corrects the detection time according to the obtained correction value of the detection time. Coincidence counting is performed on the γ ray in a coincidence counting circuit 80 based on the corrected detection time.

    摘要翻译: 伽马射线信号处理部60'基于从用于检测伽马射线的半导体辐射检测器输出的α射线检测信号来确定伽马射线的检测时间,并且确定伽马射线的能量。 然后,时间校正电路70根据伽马射线的能量,从表示伽马射线的能量与γ射线的能量的关系的时刻校正表,求出与γ射线的能量对应的检测时间的检测值 伽马射线的检测时间的校正值,并根据获得的检测时间的校正值来校正检测时间。 基于校正的检测时间,在重合计数电路80中对伽马射线进行一致性计数。