CN109688932B - 用于提供成像参数的系统和方法 - Google Patents

用于提供成像参数的系统和方法 Download PDF

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CN109688932B
CN109688932B CN201780055203.2A CN201780055203A CN109688932B CN 109688932 B CN109688932 B CN 109688932B CN 201780055203 A CN201780055203 A CN 201780055203A CN 109688932 B CN109688932 B CN 109688932B
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M·韦伯
B·菲利普斯
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Duerr Dental SE
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Abstract

本发明涉及一种系统,包括用于在存储膜片上拍摄X光图像的X光成像装置以及用于所述存储膜片的读取设备。根据本发明规定,所述存储膜片具有光学可读的标识,并且,所述X光成像装置或/和所述读取设备包括用于读取被保存在数据载体上的信息的设备,其中,数据设备被设置为,要借助所述读取设备来识别所述光学可读的标识。此外,本发明涉及一种用于为读取设备提供信息的方法。

Description

用于提供成像参数的系统和方法
技术领域
本发明涉及一种系统,包括用于在存储膜片上记录X光图像的X光成像装置以及用于所述存储膜片的读取设备。
背景技术
这些系统在今天在X光技术、例如在牙医学中被用来记录X光图像。所述存储膜片为存储所述X光图像而含有磷光物质,所述磷光物质被内置在透明基体内。由此产生存储中心部,其能够通过入射的X光而进入被激发的亚稳状态。如果在X光机内、例如为了拍摄病人的咬翼片而使这样一种存储膜片曝光,那么,所述存储膜片就包含了以被激发的和没有被激发的存储中心部形式的X光潜像。
为了读取所述存储膜片,这一存储膜片就在读取设备、例如扫描设备内被逐点地用读取光来扫描,所被激发的存储中心部的亚稳态就由此进入一种在发出荧光的条件下松弛的状态。这种荧光是借助检测单元来识别的,因此,使用相应的电子鉴定设备,就可以看见所述X光图像。
在医学上,所述存储膜片的明确的跟踪和关联极其重要。为了这一目的,在此-就像也在许多其他的物流领域中那样-要使用识别系统。
发明内容
本发明的目的是,要说明一种用于为读取设备提供信息的系统和方法,其操作简单可靠且成本有利。
这一目的是通过一种根据独立权利要求1所述的系统、通过一种根据另一独立权利要求所述的存储膜片以及通过一种根据独立方法权利要求所述的方法得以实现。本发明的更进一步设计由附属的权利要求中得出。
所述根据本发明的系统包括用于在存储膜片上记录X光图像的X光成像装置以及包括用于所述存储膜片的读取设备。根据本发明规定,所述存储膜片具有光学可读的标识作为数据载体。此外规定了,所述X光成像装置和/或所述读取设备包括数据设备,用于读取被保存在所述数据载体上的信息,其中,所述数据设备被设置为,要借助所述读取设备来识别所述光学可读的标识。所述光学可读的标识可例如是指条形码或二维码。所述读取设备的双重用法可能够实现成本非常有利地且同时有效地读取被保存在所述数据载体上的信息。所述无论如何都存在的读取设备可由所述数据设备这样来控制,使得还能够识别到如条形码、二维码或诸如此类的光学可读标识的读出。因此,根据本发明的系统,就可从存储膜片上记录X光图像的所述数据载体中提取出合适的信息。其中该信息可以是通过X光仪用于读取的成像参数。此外,可借助所要读取的信息来识别所述存储膜片的使用次数,以便能够计算或估算出所述存储膜片的可能的磨损。
在所述系统的一种实施方式中可规定,所述信息构成了唯一辨识所述存储膜片的识别码。因此,通过读取被保存到所述数据载体上的信息,就可明确地辨识出所述存储膜片。这样就使得通过不同方式识别到的数据——如磨损数据的生成和/或识别——能够以存储膜片相关的方式链接起来。此外,通过与所述唯一的辨识一起,可以链接所述存储膜片的数据或被保存在其上的X光图像的数据,所述数据通过不同方式链接在一起或保存。另外,被保存在所述数据载体上的额外信息、如成像参数、磨损数据或者诸如此类也可被链接到所述唯一辨识。
在本发明的一种根据本发明的改进方案中规定,所述数据设备被设置为,要将所读取的信息传给所述读取设备。因此,对于所述存储膜片而言,例如早在读取过程之前所述数据载体上的信息就被提供给了所述读取设备,所述存储膜片的读取可例如已经被调整为与在记录所述X光图像时已经用过的所述成像参数相适应。所述成像参数可例如作为集中存储的数据存在,并且可借助所读出的信息来进行辨识。
所述成像参数可例如涉及电压、电流强度、曝光时间、剂量、剂量面积乘积、光圈值、针对病人的数据和/或针对医嘱的数据。上述成像参数的存储构件了所述参数与所述存储膜片上存储的X光图像之间的链接,由此容许跟踪所述X光成像。
根据本发明的存储膜片具有光敏层,尤其是为了保存X光图像,并且被设置为被保存在遮光壳套内。根据本发明规定,所述存储膜片具有光学可读的标识、尤其是条形码或二维码。因此,这种光学可读的标识被放置在所述存储膜片的常见装卸期间,因为所述存储膜片通常被安放在保护壳套内而不会被读取的位置上。但光学可读标识的所述放置提供了这样一种可能,即例如在读取所述存储膜片时对存储膜片进行识别。在读取所述存储膜片时,所述光敏层借助读取激光束被激活。因此,在这个情况下,所述存储膜片位于所述遮光壳套以外,由此对于所述光学可读标识的识别而言是可读取的。优选所述读取可直接用所述存储膜片的读取光来进行。替选方案是,还可采用另一种光源、例如具有不影响所述读取过程的波长的光源。所述可光学读取的标识例如可涉及所述存储膜片的识别。
根据本发明的、为读取设备提供信息的方法包括以下步骤:借助X光成像装置进行存储膜片的曝光过程,从而在所述存储膜片上生成X光图像。所述存储膜片借助所述读取设备来读取。所述数据载体借助所述读取设备来读取。其中,上述顺序并非强制性。因此,例如需要在X光记录时所使用的成像参数就可在所述存储膜片曝光之前从所述数据载体中读取出来。此外,可在所述曝光之前或之后从所述数据载体读出所述存储膜片的标示所述存储膜片的标识。
此外可规定,读取所述存储膜片的步骤考虑到了所述数据载体的读取结果。如果在读取所述存储膜片时例如考虑到了所述X光图像已经借助其被曝光到所述存储膜片上的成像参数,在某些情况下,对于所述存储膜片而言,读取条件就能够被优化。
附图说明
现参照附图进一步阐述本发明。其中:
图1A,1B以示意图示出了一种根据本发明的系统的零件;
图2A-2D以示意图示出了一种根据本发明的存储膜片的不同实施方式;
图3以示意图示出了一种读取设备的实施方式;以及
图4为一种根据本发明的方法的流程图。
具体实施方式
在图1A和1B中示出了一种用于提供信息的系统10。所述系统10包括X光成像装置12(图1A),用于用X光图像给存储膜片13曝光,就像它例如被应用在牙医学中那样,以及包括读取设备14,用于读取所述存储膜片13上的X光图像。为了拍摄X光图像,所述存储膜片13通常借助未示出的夹持装置被布置在病人口腔内适合的位置上,并且通过所述X光成像装置12被曝光。为了所述曝光,在所述X光成像装置12上要设定出适合每种记录情况的成像参数。这些成像参数包括例如电压、电流强度、曝光时间、剂量、剂量面积乘积和/或光圈值并且由此确定特定条件。但在所述成像参数中还可包含病人特定的或者医嘱特定的信息。
所述存储膜片13除了实际的X光束感光结构以外还包括RFID应答器16。所述RFID应答器16可例如被布置在常见设置的、不透光的保护壳套上或者其内。所述RFID应答器16与所述X光成像装置12上的读写设备18和所述读取设备14上的读取仪20协同工作。替选方案或补充方案是,所述存储膜片13可具有可光学读取的结构、就像如条形码。
在所述X光成像装置12上所设置的读写设备18被设置为要将部分或所有成像参数写入到所述RFID应答器16上。为此,例如在曝光过程之前所设定的额定值和/或在曝光过程期间或之后所识别的测量值可作为成像参数被加以识别并被写入到所述RFID应答器16上。另外,所述读写设备18还可读取所述RFID应答器上的信息。例如可早在准备所述存储膜片13上的X光记录时,涉及病人、医嘱、X光系统和/或整个系统的信息或类似的信息就已经被保存在所述RFID应答器16上,所述信息然后由所述X光成像装置12读出并且可能被用在所述存储膜片13的曝光过程的配置中。
在曝光实施后,所述存储膜片13上的X光图像必须被读取。为此,在所述系统10的所示实施方式中,设置了所述读取设备14。所述读取设备14可例如涉及一种扫描设备,所述扫描设备借助所引导的激光束激发所述存储膜片基体内的亚稳态并且由此能够实现所述X光图像的读取。在所述RFID应答器16内所包含的成像参数可借助被设置在所述读取设备14上的读取仪20例如早在所述存储膜片13的读取过程之前就已经被读出,并且可能被用于所述读取/扫描过程。了解所述成像参数,就有可能使得一定环境下对所述读取过程的设定变得更加简单。
在所述读取设备14上所设置的读取仪20还可被实施为与所述读写设备18类似的读写设备。因此,可在读取所述存储膜片13后重新删除仍在所述RFID应答器16上的信息。替选方案或者补充方案是,部分或者整个读取结果又可被写入并由此被保存到所述RFID应答器16上。还可在所述RFID应答器16上保存附注,所述附注表明,所述存储膜片13已经被读取。
附图2A-D示出了存储膜片30的一种实施方式。所述存储膜片30就像图2A中所示在其使用期间被推入保护壳套32内。所述保护壳套32用作为机械性的保护,以便防止所述灵敏的存储膜片30刮擦或者弯折。同时,所述保护壳套32防止所述存储膜片30受到所不期望的光线入射,所述光线入射将会破坏在所述存储膜片30上的储存潜像或者将以不被期望的方式来曝光尚未被曝光的存储膜片。为了读取,所述存储膜片30要在受保护的环境中从所述保护壳套中取出,并且用读取光逐点或逐行地进行扫描,由此所被激发的储存中心的保存所述X光图像的亚稳状态就松弛并且发出荧光。
图3示出了扫描设备100,用于读取这样一种存储膜片30,所述存储膜片以通过X光射线被激发的亚稳的储存中心的形式携带着X光潜像。
所述扫描设备100具有用于所述存储膜片30的支承装置114。例如所述存储膜片30可以通过负压以如下方式固定在所述支承装置114上,即通常为柔性的所述存储膜片30平面地紧靠到所述支承面114上。
所述扫描设备100另外包括激光器116作为读取光源,所述激光产生出波长处于红色光谱的读取光束118,使用该光束,所述存储膜片30的所述亚稳的储存中心就能够被激发成为荧光。这一荧光120通常处于蓝色光谱。
在所述扫描设备100的当前实施方式中,所述激光器116被这样布置,使得它将所述读取光束118对准可控制的偏转单元。所述可控制的偏转单元在此被设计为镜面122。但也可设想除镜面以外的其它偏转单元,如光学单元或者诸如此类。所述镜面122可被实施为微镜面,尤其是可被实施为MEMS元件,因此,镜面122与支承装置114之间不用或者仅有极少的相对移动,就能够实现对所述存储膜片30的表面的扫描。替选方案是,所述镜面122也可传统地被设置为滚筒扫描仪的旋转镜面。在这种情况下,借助传送装置(没有画出)来实现所述支承装置114与所述镜面122之间的相对移动。
所述扫描设备100可另外包括在图中虚线勾画出的反射器124,所述反射器不透光地围绕着所述存储膜片30周围的整个测量空间,从而来自所述存储膜片30的荧光120被反射到光检测器126。为了避免被散射的读取光118进入所述光检测器126内,可安排适合的措施、如二色性滤光材料。
为了控制所述读取过程,所述扫描设备100包括控制单元128,所述控制单元除了所述控制功能以外还可承担评定或者校正功能。但所述控制单元128本身或者所述评定或/和校正功能也可在独立的计算机上来执行。所述控制单元128借助线路130与所述支承装置114、所述检测器126、所述激光器116以及所述镜面122相连接。
为了进行读取,所述控制单元128操控所述激光器116以及所述镜面122,并且逐点地、连续地用读取光束118来扫描所述存储膜片30。其中,所发出的荧光120的强度会借助所述光检测器126来进行识别,并且在所述控制单元128内加以处理以便输出。
在图2B至D中示出了存储膜片30的三种不同的实施方式。图2B中所示的存储膜片30在其上沿具有条形码结构34,所述条形码结构在扫描路线的方向35上基本覆盖所述存储膜片30的整个宽度。所述条形码结构34被这样设计,使得它在例如用所述扫描设备100在所述读取光束118的扫描方向上读取所述存储膜片时对于所述读取光束118有着更高反射性的区域36以及有着更低反射性的、例如有常规反射性的区域38。所述具有更高反射性的区域36可例如起到了散射区域的作用。因此,在扫描所述存储膜片时,例如在正常的读取过程之前,就可检测到由所述条形码-结构34在逐行扫描时所产生的的杂散光。因为在这一过程中高空间分辨性并不重要,所述杂散光光就可例如用简单的光电二极管(没有画出)来识别。替选方案或者补充方案是,或许在所要求的极低的灵敏度的情况下,无论如何都存在的光检测器1126也可来承担这一任务。
附图2C和D示出了改进方案。与图2B的条形码结构所不同的是,所述条形码结构40仅仅覆盖了所述存储膜片30的表面在扫描方向35上的一部分。在如图2D中所示的改进方案中,条形码结构42垂直于逐行的扫描方向35延伸,由此在每一个扫描行开始时都需要检测产生的散射光。
借助读取或者说识别所述条形码结构所获得的信息例如被用来辨识被集中存储的数据、就像如成像参数。因此,借助通过所述存储膜片本身就可间接取得的信息就能够实现更好地读取实际X光图像。
图4说明了用于为读取设备提供信息的方法的一种实施方式。所述方法包括以下步骤:
存储膜片借助X光设备被曝光(S1)。在所述曝光过程中,在所述存储膜片上以潜像方式生成X光图像。
用所述曝光过程的成像参数来写入与所述存储膜片固定关联的RFID应答器(S2)。如果在所述RFID应答器上仅仅存储了所要设定的额定值,所述写入(S2)的过程就可早在所述曝光(S1)的步骤之前就已进行。替选方案或补充方案是,所述写入(S2)的过程可在所述曝光过程(S1)期间或之后进行,替选方案或补充方案是,在所述曝光过程(S1)期间,所识别的测量值也可被保存到所述RFID应答器上。为了写入所述RFID应答器,所述存储膜片可仍然留在所述X光设备内或者可已经从所述X光设备中取出。
读取所述RFID应答器上的成像参数(S3)。所述存储膜片可在所述曝光过程(S1)结束以及写入所述RFID应答器(S2)后被送到读取设备,以便在该处读取所述成像参数。
所述存储膜片上的X光图像借助适合的读取设备被读取(S4)。其中,可例如涉及一种扫描设备,所述扫描设备借助激光激活X光潜像并且由此能够实现读取。读取所述成像参数(S3)和读取所述存储膜片(S4)的步骤可相互独立地来进行。但也可规定,在读取所述存储膜片(S4)之前,读取所述RFID应答器中的成像参数(S3),以便由所述成像参数获得用于读取所述存储膜片的合适设定的推导。

Claims (9)

1.一种用于提供成像参数的系统(10),包括:
-X光成像装置(12),用于在存储膜片(13)上记录X光图像;以及
-用于所述存储膜片(13)的读取设备(14),其中所述存储膜片具有光敏层,在所述读取设备(14)读取所述存储膜片时,所述光敏层借助读取激光束被激活;
其特征在于,所述存储膜片(13)具有光学可读的标识作为数据载体,所述光学可读的标识具有更高反射性的区域(36)和更低反射性的区域(38),并且
所述X光成像装置(12)和/或所述读取设备(14)包括数据设备,用于读取被保存在数据载体(16)上的信息,其中,所述数据设备被设置为借助所述读取设备的读取光束(118)检测散射光,所述散射光能够基于所述光学可读的标识的更高反射性而产生。
2.根据权利要求1所述的系统,其中,所述信息构成了唯一辨识所述存储膜片的识别码。
3.根据上述权利要求中任一项所述的系统,其中,所述数据设备被设置为,将所读的信息传给所述读取设备(14)。
4.根据权利要求1或2所述的系统,其中,所述光学可读的标识为条形码或二维码。
5.一种存储膜片,具有光敏层,所述存储膜片设置为要被保存在遮光壳套内,
其特征在于,
所述存储膜片具有光学可读的标识作为数据载体,所述光学可读的标识具有更高反射性的区域(36)和更低反射性的区域(38),其中,所述光学可读的标识被这样放置,使得它对于被设置为用于读取X光图像的读取设备而言是可读的,其中在所述读取设备读取所述存储膜片时,所述光敏层借助读取激光束被激活,借助所述读取设备的读取光束(118)检测散射光,所述散射光能够基于所述光学可读的标识的更高反射性而产生。
6.根据权利要求5所述的存储膜片,其中,所述光学可读标识为条形码或二维码。
7.根据权利要求5所述的存储膜片,其中,所述存储膜片为了保存X光图像。
8.一种用于为读取设备提供信息的方法,包括步骤:
借助X光成像装置执行存储膜片的曝光过程(S1),其中所述存储膜片具有光敏层以及作为数据载体的光学可读的标识,所述光学可读的标识具有更高反射性的区域(36)和更低反射性的区域(38);
借助读取设备读取所述存储膜片(S3),其中在所述读取设备读取所述存储膜片时,所述光敏层借助读取激光束被激活;以及
借助所述读取设备读取数据载体(S4),借助所述读取设备的读取光束(118)检测散射光,所述散射光能够基于作为数据载体的所述光学可读的标识的更高反射性而产生。
9.根据权利要求8所述的方法,其中,读取所述存储膜片的步骤考虑到了所述数据载体的读取结果。
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