NORMALIZATION OF TOMOGRAPHIC IMAGE DATA
    2.
    发明申请
    NORMALIZATION OF TOMOGRAPHIC IMAGE DATA 审中-公开
    图像图像数据的正规化

    公开(公告)号:WO1996016529A1

    公开(公告)日:1996-05-30

    申请号:PCT/US1995012464

    申请日:1995-09-29

    CPC classification number: H05G1/60 A61B6/032 A61B6/5258 H05G1/26

    Abstract: A monitoring detector assembly (70) is positioned outside the scanning plane of a CT scanner to insure detection of unattenuated x-rays from the x-ray source (26) of the scanner. The monitoring detector assembly preferably provides a sequence of monitor detection measurements simultaneous with the sequential acquisition of the image data from the image detectors (28) during each projection of the scan by a filtered CT scanner. The image data are monitored using the closest in time monitor detection measurement.

    Abstract translation: 监测检测器组件(70)位于CT扫描仪的扫描平面外部,以确保检测来自扫描器的X射线源(26)的未衰减的x射线。 监测检测器组件优选地在通过滤波CT扫描仪的每次投影投影期间与来自图像检测器(28)的图像数据的顺序采集同时提供监视器检测测量序列。 使用最接近的时间监视器检测测量来监视图像数据。

    X-RAY EXAMINATION APPARATUS COMPRISING A FILTER
    3.
    发明申请
    X-RAY EXAMINATION APPARATUS COMPRISING A FILTER 审中-公开
    包含过滤器的X射线检查装置

    公开(公告)号:WO1996000967A1

    公开(公告)日:1996-01-11

    申请号:PCT/IB1995000486

    申请日:1995-06-15

    CPC classification number: G21K1/10 H05G1/60

    Abstract: An X-ray examination apparatus according to the invention comprises a filter for limiting the dynamic range of an X-ray image formed on an X-ray detector by irradiation of an object, for example a patient to be examined, by means of X-rays. The filter comprises a number of electrodes and grains or powder particles containing an X-ray absorbing material and suspended in a suspension liquid. When a voltage is applied to electrodes, X-ray absorbing material in the suspension will move to the excited electrodes under the influence of electrophoresis. A distribution with a desired X-ray absorption profile is adjusted by application of a suitable voltage pattern. The electrodes may have dimensions of, for example 0.5 x 0.5 mm, enabling an X-ray absorption profile to be obtained with a high spatial resolution. The X-ray absorption profile can be changed within a brief period of time, for example within one second, by changing the voltage pattern on the electrodes.

    Abstract translation: 根据本发明的X射线检查装置包括:滤光器,用于通过X射线检测器的X射线图像的X射线图像的X射线照射, 射线。 过滤器包括多个电极和含有X射线吸收材料并悬浮在悬浮液中的颗粒或粉末颗粒。 当对电极施加电压时,悬浮液中的X射线吸收材料将在电泳的影响下移动到激发电极。 通过施加合适的电压模式来调整具有期望的X射线吸收曲线的分布。 电极可以具有例如0.5×0.5mm的尺寸,使得能够以高空间分辨率获得X射线吸收曲线。 可以通过改变电极上的电压图案,在短时间内,例如在一秒内改变X射线吸收曲线。

    X-RAY TOMOGRAPH
    5.
    发明申请
    X-RAY TOMOGRAPH 审中-公开

    公开(公告)号:WO1989003658A1

    公开(公告)日:1989-05-05

    申请号:PCT/JP1988001113

    申请日:1988-10-31

    Abstract: An X-ray tomograph which extracts data corresponding to the transmission data of parallel beam X-rays from X-ray transmission data collected on the basis of fan beam X-rays and reconstructs an image on the basis of the extracted data, wherein shower-like artifact occurring in the reconstructed image due to the influence of an instantaneous change in the X-ray intensity is eliminated, characterized by storing a plurality of views of output data from a data collection unit in a buffer memory, calculating the weighted average on the data of a plurality of views stored in the buffer memory to obtain view data free from the influences of the X-ray intensity change, and replacing the view data affected by the X-ray intensity change by this view data.

    PHOTON-COUNTING DETECTOR.
    6.
    发明申请
    PHOTON-COUNTING DETECTOR. 审中-公开
    光电计数器。

    公开(公告)号:WO2015092676A1

    公开(公告)日:2015-06-25

    申请号:PCT/IB2014/066961

    申请日:2014-12-16

    Abstract: An imaging system (100) includes a radiation source (110) with a focal spot (204) that emits a beam of x-ray photons that traverses an examination region (106). The imaging system further includes a photon counting detector array (122) that detects a sub-set of the x-ray photons that traverse an examination region. The imaging system further includes a controller (116) that generates and transmits a pause signal, in response to a calculated drop in an intensity of the emitted the beam of x-ray photons below a predetermined intensity level, which causes the photon counting detector array to pause detecting the sub-set of the x-ray photons. The imaging system further includes a counter (136) that counts, for each of a plurality of counting periods, the x-ray photons of the sub-set detected by the photon counting detector array in the corresponding counting period.

    Abstract translation: 成像系统(100)包括具有发射穿过检查区域(106)的x射线光子束的焦点(204)的辐射源(110)。 成像系统还包括光子计数检测器阵列(122),其检测穿过检查区域的x射线光子的子集。 成像系统还包括控制器(116),其响应于计算出的低于预定强度水平的x射线光子束的发射强度的下降,产生和发送暂停信号,这导致光子计数检测器阵列 暂停检测x射线光子的子集。 成像系统还包括计数器(136),对于多个计数周期中的每个计数周期,计数在相应的计数周期内由光子计数检测器阵列检测的子集的x射线光子。

    PROCESS AND DEVICE FOR THE AUTOMATIC RADIOSCOPIC QUALITY CONTROL OF FOODSTUFFS
    8.
    发明申请
    PROCESS AND DEVICE FOR THE AUTOMATIC RADIOSCOPIC QUALITY CONTROL OF FOODSTUFFS 审中-公开
    方法和设备食品定量放射线检查质量控制

    公开(公告)号:WO1997033160A1

    公开(公告)日:1997-09-12

    申请号:PCT/EP1997000513

    申请日:1997-02-05

    CPC classification number: H05G1/60 G01N23/04

    Abstract: In a process for the automatic radioscopic quality control of foodstuff items (104), an item (104) to be controlled is taken past an X-radiation source (100) and the X-radiation (100a-100c) passing through said item (104) to be controlled is detected. A chargeimage is generated from the detected X-radiation (100a-100c) by means of a sensor (108) having a plurality of sensor units (102a-102c) by shifting generated charges (110, 112, 114) over several sensor units (102a-102c) synchronously with a direction (106) and speed of movement of the item (104) to be controlled and imaged on the sensor (108) and by adding the partial charges generated by the sensor units (102a-102c) to the charge image. The foodstuff item to be controlled is then assessed by means of the charge image.

    Abstract translation: 一个到控制食品(104)被引导过去的X射线源(100)和到控制食品(104)穿透的X射线辐射(100A-100C)在食品(104)的自动放射镜质量控制的方法进行检测。 从所检测的X射线辐射(100A-100C)由多个传感器元件(102A-102C),用移产生(110,112,114)同步地电荷产生的电荷像承载多个传感器元件(102A-102C)传感器(108)的装置 的移动方向(106)和所述传感器的运动的方向(108)的速度所示,为了通过由所述传感器元件(102A-102C)部分电荷到电荷图像附加了控制食品(104)和生成的。 其次是基于电荷图像的检查食品的评估。

    IMAGE PICK-UP APPARATUS
    9.
    发明申请
    IMAGE PICK-UP APPARATUS 审中-公开
    图像拾取装置

    公开(公告)号:WO1996016510A1

    公开(公告)日:1996-05-30

    申请号:PCT/IB1995000862

    申请日:1995-10-11

    CPC classification number: H04N5/32 H05G1/44 H05G1/60

    Abstract: An image pick-up apparatus (1) which includes an image sensor (2) is provided with a control circuit (4) arranged to read out the image sensor with a given delay after the picking up of a light image. Incident light is prevented from disturbing an image picked up during read-out in that reading out commences after the light intensity of the light image has vanished. Notably the disturbing of the picked-up image during read-out due to afterglow of a phosphor layer (25) on which the light image is formed is conteracted.

    Abstract translation: 包括图像传感器(2)的图像拾取装置(1)设置有控制电路(4),其被配置为在拾取光图像之后以给定的延迟读出图像传感器。 防止入射光干扰在读出期间拾取的图像,因为在光图像的光强度消失之后,读出开始。 值得注意的是,由于形成有光图像的荧光体层(25)的余辉而导致在读出期间拍摄图像的干扰受到限制。

    APPARATUS FOR MAKING X-RAY IMAGES
    10.
    发明申请
    APPARATUS FOR MAKING X-RAY IMAGES 审中-公开
    用于制作X射线图像的装置

    公开(公告)号:WO1995027922A1

    公开(公告)日:1995-10-19

    申请号:PCT/FI1995000193

    申请日:1995-04-07

    CPC classification number: H05G1/46 H04N5/32 H05G1/60

    Abstract: The apparatus for making X-ray images comprises a luminescent screen (2), like a phosphor screen, arranged to provide a visible image by the effect of X-rays sent out by an X-ray source and a CCD camera (3) for receiving and storing the image forming on the luminescent screen (2). The apparatus further comprises, in optical communication with the luminescent screen and separate from the CCD camera, a photosensor (6) which is connected to computing and control means which are connectable in signal transfer comunication with the control means (14) of the X-ray source for adjusting a correct quantity of exposure.

    Abstract translation: 用于制造X射线图像的装置包括荧光屏(2),其被布置成通过由X射线源和CCD照相机(3)发射的X射线的效果来提供可见图像,用于 接收和存储在荧光屏(2)上形成的图像。 该装置还包括与发光屏光学通信并与CCD照相机分离的光电传感器(6),其连接到计算和控制装置,该计算和控制装置可与信号传送通信连接,与X射线管的控制装置(14) 用于调整正确数量的曝光。

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