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    • 151. 发明授权
    • Motion vector detecting apparatus, motion vector detecting method, and program
    • 运动矢量检测装置,运动矢量检测方法和程序
    • US08401318B2
    • 2013-03-19
    • US12508136
    • 2009-07-23
    • Hiroki TetsukawaTetsujiro KondoKenji TakahashiKazushi Yoshikawa
    • Hiroki TetsukawaTetsujiro KondoKenji TakahashiKazushi Yoshikawa
    • G06K9/00G06K9/46H04N7/12
    • H04N19/57H04N19/51H04N19/56
    • Generation of evaluation value information about a motion vector, extraction of candidates for the motion vector on the basis of the evaluation value information, and determination of the motion vector to be allocated from the candidates for the motion vector are performed. The possibility that a reference pixel a in a second frame is a candidate for a motion from a target point in a first frame is evaluated on the basis of pixel-value correlation information to generate an evaluation value table. A constant area is adaptively set around each of the target pixel and the reference pixel corresponding to each extracted candidate for the motion vector in accordance with the state of the continuity of a constant pixel value. The motion vector from the first frame to the second frame is allocated on the basis of the result of comparison between values calculated for the constant areas.
    • 执行关于运动矢量的评估值信息的生成,基于评估值信息提取运动矢量的候选以及从运动矢量的候选中确定要分配的运动矢量。 基于像素值相关信息来评估第二帧中的参考像素a是来自第一帧中的目标点的运动的候选的可能性,以生成评估值表。 根据恒定像素值的连续性的状态,对于针对运动矢量的每个提取的候选者对应的目标像素和参考像素的每一个自适应地设定恒定区域。 基于针对恒定区域计算的值之间的比较结果,分配从第一帧到第二帧的运动矢量。
    • 157. 发明授权
    • Radiation phase contrast imaging apparatus
    • 辐射相位成像装置
    • US08280000B2
    • 2012-10-02
    • US12662642
    • 2010-04-27
    • Kenji Takahashi
    • Kenji Takahashi
    • G01N23/04
    • A61B6/484A61B6/4021A61B6/4291A61B6/502G21K2207/005
    • Providing a radiation emission unit that includes a radiation source and outputs a fan beam of radiation, a diffraction grating onto which radiation outputted from the radiation emission unit is emitted, and a periodic information imaging radiation image detector that includes multiple linear electrodes and detects periodic information of radiation diffracted by the diffraction grating, disposing the radiation emission unit and the periodic information imaging radiation image detector such that an extending direction of the linear electrodes of the periodic information imaging radiation image detector is perpendicular to a fan surface of the fan beam having a larger spread angle, and configuring the radiation emission unit to scan the fan beam in the perpendicular direction.
    • 提供包括辐射源并输出扇形辐射束的辐射发射单元,从辐射发射单元输出的辐射发射到其上的衍射光栅;以及周期性信息成像放射线图像检测器,包括多个线性电极并检测周期信息 设置辐射发射单元和周期性信息成像放射线图像检测器,使得周期性信息成像放射线图像检测器的线性电极的延伸方向垂直于扇形光束的风扇表面,该风扇表面具有 较大的扩展角度,以及配置辐射发射单元沿垂直方向扫描风扇光束。