JP5417262B2 - Sample recognition device - Google Patents

Sample recognition device Download PDF

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JP5417262B2
JP5417262B2 JP2010131305A JP2010131305A JP5417262B2 JP 5417262 B2 JP5417262 B2 JP 5417262B2 JP 2010131305 A JP2010131305 A JP 2010131305A JP 2010131305 A JP2010131305 A JP 2010131305A JP 5417262 B2 JP5417262 B2 JP 5417262B2
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container
specimen
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background
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JP2011257236A (en
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政雄 黒須
政治 小林
忠雄 高部
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SRL, INC.
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本発明は、検体容器の形状と検体容器及び検体の色相を認識する検体認識装置に関するものである。   The present invention relates to a sample recognition apparatus that recognizes the shape of a sample container, the sample container, and the hue of the sample.

従来、検体入りの容器内の検体を検知する検体検知装置が知られている（例えば、特許文献１参照）。この検体検知装置によれば、検体入りの容器を撮影するカメラで撮影した画像の画像信号に基づいて容器内の検体の検体量を計測することができる。   Conventionally, a sample detection device that detects a sample in a container containing a sample is known (see, for example, Patent Document 1). According to this sample detection device, the sample amount of the sample in the container can be measured based on the image signal of the image captured by the camera that captures the container containing the sample.

特開２００４−２１２２１６号公報JP 2004-212216 A

しかし、上述の検体検知装置においては、検体撮影時に検体の背景色は考慮されておらず、検体の色と背景色が類似する場合に検体を正確に計測できないおそれがあった。   However, in the above-described sample detection device, the background color of the sample is not taken into account at the time of sample imaging, and there is a possibility that the sample cannot be accurately measured when the sample color and the background color are similar.

本発明の目的は、検体容器の形状と検体容器及び検体容器内の検体の色相を認識することにより、規格容器であるか否か及び規格検体であるか否かを正確に判定することができる検体認識装置を提供することである。   It is an object of the present invention to accurately determine whether or not a specimen is a standard container and whether or not it is a standard specimen by recognizing the shape of the specimen container and the hue of the specimen container and the specimen in the specimen container. It is to provide a specimen recognition apparatus.

本発明の検体認識装置は、検体ラックに立てられた検体容器の上部を撮影する第１撮影部と、前記第１撮影部により撮影した前記検体容器の部位よりも下部の所定の部位を撮影する第２撮影部と、前記第１撮影部により撮影された画像の画像データに基づいて前記検体容器の形状が規格容器の形状であるか否かを判定する第１判定部と、前記第２撮影部により撮影を行う場合に前記検体容器の背景を白色の背景または黒色の背景に変更する背景変更部と、前記第２撮影部により撮影された画像の画像データに基づいて前記検体容器及び前記検体容器内の検体の色相を判定する第２判定部とを備えることを特徴とする。   The sample recognition apparatus of the present invention images a first imaging unit that images an upper part of a sample container set up on a sample rack, and a predetermined part below the part of the sample container imaged by the first imaging part. A second imaging unit; a first determination unit that determines whether or not the shape of the sample container is a standard container shape based on image data of an image captured by the first imaging unit; and the second imaging A background changing unit that changes the background of the sample container to a white background or a black background when imaging is performed by the unit, and the sample container and the sample based on image data of an image captured by the second imaging unit And a second determination unit that determines the hue of the specimen in the container.

また、本発明の検体認識装置は、前記第１撮影部及び前記第２撮影部を前記検体ラックに沿って移動させる移動部を備え、前記第１撮影部及び前記第２撮影部により前記検体ラックに立てられた複数の前記検体容器を順次撮影することを特徴とする。   The sample recognition apparatus of the present invention further includes a moving unit that moves the first imaging unit and the second imaging unit along the sample rack, and the sample rack is configured by the first imaging unit and the second imaging unit. A plurality of the specimen containers set up in the above are sequentially photographed.

また、本発明の検体認識装置は、前記第１判定部が前記検体容器の高さと前記検体容器の直径の少なくとも一方に基づいて前記検体容器が規格容器であるか否かを判定することを特徴とする。   In the sample recognition device of the present invention, the first determination unit determines whether or not the sample container is a standard container based on at least one of a height of the sample container and a diameter of the sample container. And

また、本発明の検体認識装置は、前記第１判定部が前記検体容器の蓋の傾き及び浮き状態の少なくとも一つに基づいて前記検体容器が規格容器であるか否かを判定することを特徴とする。   In the sample recognition device of the present invention, the first determination unit determines whether or not the sample container is a standard container based on at least one of a tilt and a floating state of the lid of the sample container. And

また、本発明の検体認識装置は、前記第１判定部が前記検体容器にパラフィルムが巻きつけてあるか否かに基づいて前記検体容器が規格容器であるか否かを判定することを特徴とする。   In the sample recognition device of the present invention, the first determination unit determines whether or not the sample container is a standard container based on whether or not a parafilm is wound around the sample container. And

また、本発明の検体認識装置は、前記第２判定部が前記背景変更部により前記検体容器の背景を白色の背景にした状態において前記第２撮影部により撮影された前記画像の画像データに基づいて前記検体容器及び前記検体容器内の検体の色相を判定することを特徴とする。   Further, the sample recognition device of the present invention is based on the image data of the image captured by the second imaging unit in a state where the second determination unit sets the background of the sample container to a white background by the background changing unit. And determining the hue of the specimen container and the specimen in the specimen container.

また、本発明の検体認識装置は、前記第２判定部が前記背景変更部により前記検体容器の背景を白色の背景にした状態において前記第２撮影部により撮影された前記画像の画像データに基づいて前記検体容器内の検体の溶血度を測定することを特徴とする。   Further, the sample recognition device of the present invention is based on the image data of the image captured by the second imaging unit in a state where the second determination unit sets the background of the sample container to a white background by the background changing unit. And measuring the degree of hemolysis of the sample in the sample container.

また、本発明の検体認識装置は、前記第２判定部が前記背景変更部により前記検体容器の背景を黒色の背景にした状態において前記第２撮影部により撮影された前記画像の画像データに基づいて前記検体容器内の検体の乳び度を測定することを特徴とする。   In the sample recognition device of the present invention, the second determination unit may be based on image data of the image captured by the second imaging unit in a state where the background change unit sets the background of the sample container to a black background. And measuring the milkiness of the specimen in the specimen container.

また、本発明の検体認識装置は、前記検体ラックに立てられた前記検体容器に対して上方向からレーザー光を照射することにより前記検体容器までの距離を計測する計測部と、前記計測部により計測した結果に基づいて前記検体容器の蓋の有無を判定する蓋判定部とを備えることを特徴とする。   The sample recognition device of the present invention includes a measurement unit that measures the distance to the sample container by irradiating the sample container set up on the sample rack from above with a laser beam, and the measurement unit. And a lid determination unit that determines the presence or absence of the lid of the sample container based on the measured result.

本発明の検体認識装置によれば、検体容器の形状と検体容器及び検体容器内の検体の色相を認識することにより、規格容器であるか否か及び規格検体であるか否かを正確に判定することができる。   According to the sample recognition apparatus of the present invention, it is possible to accurately determine whether or not the sample is a standard container and whether or not it is a standard sample by recognizing the shape of the sample container and the hue of the sample container and the sample in the sample container. can do.

実施形態に係る検体認識装置の外観を示す斜視図である。It is a perspective view which shows the external appearance of the sample recognition apparatus which concerns on embodiment. 実施形態に係る検体認識装置の移動コンベアに載置された検体ラック及び２次元レーザー変位センサを示す斜視図である。It is a perspective view which shows the sample rack and the two-dimensional laser displacement sensor which were mounted in the moving conveyor of the sample recognition apparatus which concerns on embodiment. 実施形態に係る検体認識装置における２次元レーザー変位センサにより検出されたレーザー光の検出値を示す図である。It is a figure which shows the detected value of the laser beam detected by the two-dimensional laser displacement sensor in the sample recognition apparatus which concerns on embodiment. 実施形態に係る検体認識装置の背景板を示す図である。It is a figure which shows the background board of the sample recognition apparatus which concerns on embodiment. 実施形態に係る検体認識装置の構成を示すブロック図である。It is a block diagram which shows the structure of the sample recognition apparatus which concerns on embodiment. 実施形態に係る検体認識装置の処理を示すフローチャートである。It is a flowchart which shows the process of the sample recognition apparatus which concerns on embodiment.

以下、図面を参照して本発明の実施形態に係る検体認識装置について説明する。図１は、実施形態に係る検体認識装置２の外観を示す斜視図である。検体認識装置２には、隣接する搬送コンベア４により搬送された検体ラック６を所定の位置に移動する移動コンベア７を備えた検体ラック載置部８、検体ラック載置部８に載置された検体ラック６に立てられている検体容器１０の上部を撮影する第１ＣＣＤカメラ１２、撮影の際に検体容器１０の上部を照明する第１照明部１４、検体ラック６に立てられている検体容器１０の下部を撮影する第２ＣＣＤカメラ１６、撮影の際に検体容器１０の下部を照明する第２照明部１８、検体容器１０に対して上方向からレーザー光を照射する２次元レーザー変位センサ２０、第２ＣＣＤカメラ１６により検体容器１０の下部を撮影する際の背景を構成する背景板２２（図４参照）が設けられている。なお、第１照明部１４は、第１支持部材２４を介して第１ＣＣＤカメラ１２の上部に取り付けられ、第２照明部１８は、第２支持部材２６を介して第２ＣＣＤカメラ１６の上部に取り付けられている。また、第１ＣＣＤカメラ１２及び第２ＣＣＤカメラ１６は、カメラ支持部２８に固定されており、カメラ支持部２８は検体ラック６の搬送方向に沿って移動する。従って、検体ラック６に立てられている複数の検体容器１０が第１ＣＣＤカメラ１２及び第２ＣＣＤカメラ１６により順次撮影される。   Hereinafter, a sample recognition apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view illustrating an appearance of a sample recognition device 2 according to the embodiment. The sample recognition device 2 is mounted on a sample rack mounting unit 8 and a sample rack mounting unit 8 each having a moving conveyor 7 that moves a sample rack 6 transported by an adjacent transport conveyor 4 to a predetermined position. A first CCD camera 12 for photographing the upper part of the sample container 10 standing on the sample rack 6, a first illumination unit 14 for illuminating the upper part of the sample container 10 during photographing, and the sample container 10 standing on the sample rack 6 A second CCD camera 16 for photographing the lower part of the sample container, a second illumination unit 18 for illuminating the lower part of the sample container 10 at the time of photographing, a two-dimensional laser displacement sensor 20 for irradiating the sample container 10 with laser light from above, A background plate 22 (see FIG. 4) is provided that forms the background when the lower part of the sample container 10 is imaged by the 2CCD camera 16. The first illumination unit 14 is attached to the upper part of the first CCD camera 12 via the first support member 24, and the second illumination part 18 is attached to the upper part of the second CCD camera 16 via the second support member 26. It has been. Further, the first CCD camera 12 and the second CCD camera 16 are fixed to the camera support unit 28, and the camera support unit 28 moves along the transport direction of the sample rack 6. Accordingly, a plurality of sample containers 10 standing on the sample rack 6 are sequentially photographed by the first CCD camera 12 and the second CCD camera 16.

図２は、移動コンベア７に載置された検体ラック６及び２次元レーザー変位センサ２０を示す斜視図である。検体ラック６は、試験管型の検体容器１０を立てる検体収容部を一列に１０個備えた樹脂製の１０本ラックであり、検体容器１０が１０本立てられた状態で隣接する搬送コンベア４から検体ラック載置部８に移載される。なお、検体ラック６の第２ＣＣＤカメラ１６側の側面には、検体収容部ごとにスリット３０が設けられており、検体容器１０を検体ラック６に立てたままの状態で第２ＣＣＤカメラ１６により検体容器１０の下部を撮影することができる。また、２次元レーザー変位センサ２０は、検体ラック６が検体ラック載置部８に移載され、移動コンベア７により所定の位置まで移動される際に、レーザー光照射部３２から検体容器１０の上部に対してレーザー光を照射し、検体容器１０において反射したレーザー光をレーザー光検出部３６により検出して検体容器１０の蓋３４の有無を判定する。   FIG. 2 is a perspective view showing the sample rack 6 and the two-dimensional laser displacement sensor 20 placed on the moving conveyor 7. The sample rack 6 is a 10-resin rack made of resin having 10 sample storage sections for standing test tube-type sample containers 10 in a row, and the sample is transferred from the adjacent transport conveyor 4 with 10 sample containers 10 set up. Transferred to the rack mounting unit 8. A slit 30 is provided in each side of the sample rack 6 on the side of the sample rack 6 on the second CCD camera 16 side, and the sample container 10 is held by the second CCD camera 16 with the sample container 10 standing on the sample rack 6. The lower part of 10 can be photographed. Further, the two-dimensional laser displacement sensor 20 is configured such that when the sample rack 6 is transferred to the sample rack mounting unit 8 and moved to a predetermined position by the moving conveyor 7, the laser beam irradiation unit 32 and the upper portion of the sample container 10 are moved. Is irradiated with laser light, and the laser light reflected from the sample container 10 is detected by the laser light detection unit 36 to determine the presence or absence of the lid 34 of the sample container 10.

図３は、実施形態に係る検体認識装置２における２次元レーザー変位センサ２０により検出されたレーザー光の検出値を示す図である。２次元レーザー変位センサ２０のレーザー光照射部３２により照射されたレーザー光は、検体容器１０に蓋３４が取付けられている場合、蓋３４の表面で反射した後にレーザー光検出部３６において検出される。この場合、図３（ａ）に示すような矩形状の検出値が得られる。また、検体容器１０に蓋３４が取付けられていない場合、レーザー光は蓋３４の表面で反射せず、検体の表面で反射してレーザー光検出部３６において検出される。この場合、図３（ｂ）に示すように矩形の山の部分が凹んだ形の検出値が得られる。従って、この検出値に基づいてそれぞれの検体容器１０の蓋３４の有無が判定される。   FIG. 3 is a diagram illustrating detection values of laser light detected by the two-dimensional laser displacement sensor 20 in the sample recognition device 2 according to the embodiment. When the lid 34 is attached to the sample container 10, the laser beam irradiated by the laser beam irradiation unit 32 of the two-dimensional laser displacement sensor 20 is detected by the laser beam detection unit 36 after being reflected by the surface of the lid 34. . In this case, a rectangular detection value as shown in FIG. In addition, when the lid 34 is not attached to the sample container 10, the laser light is not reflected on the surface of the lid 34, but is reflected on the surface of the sample and detected by the laser light detection unit 36. In this case, as shown in FIG. 3B, a detection value having a shape in which a rectangular peak portion is recessed is obtained. Therefore, the presence / absence of the lid 34 of each sample container 10 is determined based on this detection value.

図４は、実施形態に係る検体認識装置の背景板２２を示す図である。背景板２２は、金属やプラスチックからなる長方形の平面板であり、上半分の領域２２ａが白色、下半分の領域２２ｂが黒色に彩色されている。この背景板２２は、後述する背景変更部４８（図５参照）により上下に移動し、第２ＣＣＤカメラ１６により検体容器１０の下部を撮影する際の背景として、白色の背景、または黒色の背景のいずれか一つを設定する。   FIG. 4 is a diagram illustrating the background plate 22 of the sample recognition device according to the embodiment. The background plate 22 is a rectangular flat plate made of metal or plastic, and the upper half region 22a is colored white and the lower half region 22b is colored black. The background plate 22 is moved up and down by a background changing unit 48 (see FIG. 5) to be described later, and a white background or a black background is used as a background when the lower part of the sample container 10 is photographed by the second CCD camera 16. Set one of them.

図５は、実施形態に係る検体認識装置２の構成を示すブロック図である。検体認識装置２はＣＰＵ４０を備え、ＣＰＵ４０には、第１ＣＣＤカメラ１２、第２ＣＣＤカメラ１６、撮影時にカメラ支持部２８を搬送方向に移動させるカメラ移動部４４、第１ＣＣＤカメラ１２及び第２ＣＣＤカメラ１６から出力された画像データを記憶する記憶部４５、第１照明部１４、第２照明部１８、検体ラック載置部８の移動コンベア７を移動させるコンベア移動部４６、２次元レーザー変位センサ２０、背景板２２を上下に移動させることにより背景を変更する背景変更部４８が設けられている。   FIG. 5 is a block diagram illustrating a configuration of the sample recognition device 2 according to the embodiment. The sample recognition apparatus 2 includes a CPU 40. The CPU 40 includes a first CCD camera 12, a second CCD camera 16, a camera moving unit 44 that moves the camera support unit 28 in the transport direction during photographing, the first CCD camera 12, and the second CCD camera 16. Storage unit 45 for storing output image data, first illumination unit 14, second illumination unit 18, conveyor moving unit 46 for moving movable conveyor 7 of sample rack mounting unit 8, two-dimensional laser displacement sensor 20, background A background changing unit 48 is provided for changing the background by moving the plate 22 up and down.

次に、図６のフローチャートを参照して実施形態に係る検体認識装置２の処理について説明する。ここで、検体認識装置２においては、検体容器の判定及び検体の性状の判定において、検査順序が規格色の判定、溶血度の測定、乳び度の測定の順に指定されているものとして説明する。なお、この実施の形態においては、パラフィルムを検体容器の形状として取り扱う。   Next, processing of the sample recognition apparatus 2 according to the embodiment will be described with reference to the flowchart of FIG. Here, the sample recognition apparatus 2 will be described assuming that the test order is specified in the order of standard color determination, hemolysis measurement, and chyle measurement in the determination of the sample container and the determination of the sample properties. . In this embodiment, the parafilm is handled as the shape of the sample container.

まず、ＣＰＵ４０は、背景変更部４８を制御して背景板２２の上半分の領域２２ａを第２ＣＣＤカメラ１６に対向する位置に移動させ、背景を白色に設定する。（ステップＳ２）。次に、搬送コンベア４を駆動させ、検体容器１０が１０本立てられた検体ラック６を検体ラック載置部８に移載する。そして、検体ラック載置部８に移載された検体ラック６を、移動コンベア７により所定の位置まで移動させる（ステップＳ３）。   First, the CPU 40 controls the background changing unit 48 to move the upper half area 22a of the background plate 22 to a position facing the second CCD camera 16, and sets the background to white. (Step S2). Next, the transport conveyor 4 is driven, and the sample rack 6 in which ten sample containers 10 are erected is transferred to the sample rack mounting unit 8. Then, the sample rack 6 transferred to the sample rack mounting unit 8 is moved to a predetermined position by the moving conveyor 7 (step S3).

２次元レーザー変位センサ２０は、検体ラック６が移動コンベア７により所定の位置まで移動される際に、レーザー光照射部３２から検体ラック６に立てられた検体容器１０の上部に対してレーザー光を照射し（ステップＳ４）、レーザー光検出部３６により検体容器１０において反射したレーザー光を検出する。２次元レーザー変位センサ２０は、検出値に基づいて検体容器１０の蓋３４の有無を判定する（ステップＳ５）。次に、ＣＰＵ４０は、所定の本数である１０本分の検体容器１０について蓋３４の有無を判定したか否かの判別を行う（ステップＳ６）。１０本分の検体容器１０について蓋３４の有無の判定が終了していない場合、コンベア移動部４６を制御して移動コンベア７により検体ラック載置部８上の検体ラック６の位置を更に搬送方向に移動させて、蓋３４の有無の判定を繰り返す（ステップＳ４〜５）。一方、１０本分の検体容器１０について蓋３４の有無の判定が終了した場合、移動コンベア７により検体ラック載置部８上の検体ラック６を第１ＣＣＤカメラ１２及び第２ＣＣＤカメラ１６による撮影位置まで移動させて移動コンベア７を停止する（ステップＳ７）。   When the sample rack 6 is moved to a predetermined position by the moving conveyor 7, the two-dimensional laser displacement sensor 20 emits laser light to the upper part of the sample container 10 set up on the sample rack 6 from the laser light irradiation unit 32. Irradiation (step S 4), and the laser light reflected by the sample container 10 is detected by the laser light detection unit 36. The two-dimensional laser displacement sensor 20 determines the presence / absence of the lid 34 of the sample container 10 based on the detection value (step S5). Next, the CPU 40 determines whether or not the presence or absence of the lid 34 has been determined for ten sample containers 10 that are a predetermined number (step S6). When the determination of the presence / absence of the lid 34 is not completed for the ten sample containers 10, the conveyor moving unit 46 is controlled so that the position of the sample rack 6 on the sample rack mounting unit 8 is further moved by the moving conveyor 7 in the transport direction. To determine whether or not the lid 34 is present (steps S4 to S5). On the other hand, when the determination of the presence or absence of the lid 34 is completed for the 10 sample containers 10, the sample rack 6 on the sample rack mounting unit 8 is moved to the imaging position by the first CCD camera 12 and the second CCD camera 16 by the moving conveyor 7. The moving conveyor 7 is stopped by moving (step S7).

検体ラック６が検体ラック載置部８上の所定の位置に設定されると、ＣＰＵ４０は、カメラ移動部４４を制御してカメラ支持部２８の移動を開始し（ステップＳ８）、第１ＣＣＤカメラ１２及び第２ＣＣＤカメラ１６により検体容器１０の撮影を行う。まず、第１ＣＣＤカメラ１２は、検体ラック６に立てられている１本目の検体容器１０の上部を撮影して、検体容器１０の上部の画像データを記憶部４５に記憶する（ステップＳ９）。次に、ＣＰＵ４０は、記憶部４５から１本目の検体容器１０の上部の画像データを読み出して検体容器１０の形状が規格容器の形状であるか否かを認識することにより、検体容器１０が規格容器であるか否かの判定を行う（ステップＳ１０）。   When the sample rack 6 is set at a predetermined position on the sample rack mounting unit 8, the CPU 40 controls the camera moving unit 44 to start moving the camera support unit 28 (step S8), and the first CCD camera 12 is started. The specimen container 10 is photographed by the second CCD camera 16. First, the first CCD camera 12 images the upper part of the first specimen container 10 standing on the specimen rack 6, and stores the image data of the upper part of the specimen container 10 in the storage unit 45 (step S9). Next, the CPU 40 reads out the image data of the upper part of the first sample container 10 from the storage unit 45 and recognizes whether or not the shape of the sample container 10 is the shape of the standard container, whereby the sample container 10 is standardized. It is determined whether or not it is a container (step S10).

例えば、画像データにおいて蓋３４の上下及び左右のエッジを検出することにより蓋３４の高さ、直径、傾きを算出し、蓋３４のサイズ及び傾きや浮き状態がそれぞれ所定の範囲内にあるか否かを判定する。同様にして、画像データにおいて検体容器１０の上下及び左右のエッジを検出することにより検体容器１０の高さ及び直径を算出し、検体容器１０のサイズがそれぞれ所定の範囲内にあるか否かを判定する。また、画像データにおいて蓋３４と検体容器１０の境界付近の反射光を検出することにより検体容器１０にパラフィルムが巻きつけてあるか否かを判定する。そして、蓋３４のサイズ及び傾きや浮き状態がそれぞれ所定の範囲内にあるか否か、検体容器１０のサイズが所定の範囲内にあるか否か及びパラフィルムの有無に基づいて、検体容器１０が規格容器であるか否かの判定を行う。なお、所定の範囲については、操作者が任意に設定することができる。   For example, the height, diameter, and inclination of the lid 34 are calculated by detecting the upper and lower and left and right edges of the lid 34 in the image data, and whether the size, inclination, and floating state of the lid 34 are within predetermined ranges. Determine whether. Similarly, the height and diameter of the sample container 10 are calculated by detecting the top and bottom and left and right edges of the sample container 10 in the image data, and whether or not the size of the sample container 10 is within a predetermined range. judge. Further, it is determined whether or not a parafilm is wound around the specimen container 10 by detecting reflected light near the boundary between the lid 34 and the specimen container 10 in the image data. Then, based on whether the size, inclination and floating state of the lid 34 are within a predetermined range, whether the size of the sample container 10 is within a predetermined range, and the presence or absence of a parafilm, the sample container 10 It is determined whether or not is a standard container. Note that the operator can arbitrarily set the predetermined range.

一方、第２ＣＣＤカメラ１６は、検体ラック６に立てられている１本目の検体容器１０の下部を撮影して、検体容器１０の下部の画像データを記憶部４５に記憶する（ステップＳ１１）。次に、ＣＰＵ４０は、記憶部４５から１本目の検体容器１０の下部の画像データを読み出して、検体容器１０及び検体容器１０内の検体が規格内であるか否かの判定を行う（ステップＳ１２）。例えば、画像データにおける所定領域のＲ（赤色）、Ｇ（緑色）、Ｂ（青色）の階調の値が所定の階調の範囲内にあるか否かを計測し、検体容器１０及び検体容器１０内の検体が規格検体であるか否かを判定する。さらに、検体容器１０及び検体容器１０内の検体の階調が規格内と判定された検体の溶血度を測定して溶血度の段階を判定し記憶部４５に記憶する（ステップＳ１３）。なお、所定の諧調の範囲及び溶血度の段階判定については、操作者が任意に設定することができる。   On the other hand, the second CCD camera 16 images the lower part of the first specimen container 10 standing on the specimen rack 6 and stores the image data of the lower part of the specimen container 10 in the storage unit 45 (step S11). Next, the CPU 40 reads the image data of the lower part of the first sample container 10 from the storage unit 45, and determines whether or not the sample container 10 and the sample in the sample container 10 are within the standard (step S12). ). For example, it is determined whether or not the gradation values of R (red), G (green), and B (blue) in a predetermined area in the image data are within a predetermined gradation range, and the sample container 10 and the sample container It is determined whether or not the sample in 10 is a standard sample. Further, the hemolysis degree of the specimen container 10 and the specimen in which the gradation of the specimen in the specimen container 10 is determined to be within the standard is measured to determine the stage of hemolysis degree and stored in the storage unit 45 (step S13). It should be noted that the operator can arbitrarily set the predetermined gradation range and hemolysis level determination.

次に、ＣＰＵ４０は、１０本分の検体容器１０について、検体容器１０が規格容器であるか否か、検体容器１０及び検体容器１０内の検体が規格内であるか否か、検体の溶血度を測定したか否かの判別を行う（ステップＳ１４）。１０本分の検体容器１０について規格容器及び規格検体の判定と溶血度の測定が終了していない場合、ＣＰＵ４０は、カメラ移動部４４を制御してカメラ支持部２８を更に検体ラック６の搬送方向に移動させて残りの本数分ステップＳ８〜１３を繰り返す。   Next, for the 10 sample containers 10, the CPU 40 determines whether the sample container 10 is a standard container, whether the sample container 10 and the sample in the sample container 10 are within the standard, and the degree of hemolysis of the sample. Whether or not is measured is determined (step S14). When the determination of the standard container and the standard sample and the measurement of the hemolysis degree are not completed for the ten sample containers 10, the CPU 40 controls the camera moving unit 44 to further move the camera support unit 28 in the transport direction of the sample rack 6. Steps S8 to S13 are repeated for the remaining number.

一方、１０本分の容器検体１０について規格容器及び規格検体の判定と溶血度の測定が終了した場合は、ＣＰＵ４０は、背景変更部４８を制御して背景板２２の下半分の領域２２ｂを第２ＣＣＤカメラ１６に対向する位置に移動させ、背景を黒色に設定し（ステップＳ１５）、カメラ移動部４４を制御してカメラ支持部２８を元の位置に戻す（ステップＳ１６）。   On the other hand, when the determination of the standard container and the standard sample and the measurement of the hemolysis degree are completed for the ten container samples 10, the CPU 40 controls the background changing unit 48 to set the lower half region 22b of the background plate 22 to the first half. The camera is moved to a position facing the 2CCD camera 16, the background is set to black (step S15), and the camera moving unit 44 is controlled to return the camera support unit 28 to the original position (step S16).

次に、ＣＰＵ４０は、カメラ移動部４４を制御してカメラ支持部２８の移動を開始する（ステップＳ１７）。そして、第２ＣＣＤカメラ１６は、検体ラック６に立てられている１本目の検体容器１０の下部を撮影して、検体容器１０の下部の画像データを記憶部４５に記憶する（ステップＳ１８）。次に、ＣＰＵ４０は、記憶部４５から１本目の検体容器１０の下部の画像データを読み出して、検体容器１０内の検体の乳び度を測定する（ステップＳ１９）。例えば、画像データにおける所定領域のＲ（赤色）、Ｇ（緑色）、Ｂ（青色）の階調の値を計測し、検体の乳び度を測定して乳び度の段階を判定し記憶部４５に記憶する。なお、所定の諧調の範囲及び乳び度の段階判定については、操作者が任意に設定することができる。   Next, the CPU 40 controls the camera moving unit 44 to start moving the camera support unit 28 (step S17). Then, the second CCD camera 16 images the lower part of the first specimen container 10 standing on the specimen rack 6 and stores the image data of the lower part of the specimen container 10 in the storage unit 45 (step S18). Next, the CPU 40 reads out the image data of the lower part of the first sample container 10 from the storage unit 45, and measures the milkiness of the sample in the sample container 10 (step S19). For example, R (red), G (green), and B (blue) gradation values of a predetermined area in the image data are measured, the chyle degree of the specimen is measured, the stage of chyle degree is determined, and the storage unit 45. It should be noted that the operator can arbitrarily set the predetermined gradation range and chyle degree determination.

次に、ＣＰＵ４０は、１０本分の検体容器１０内の検体の乳び度を測定したか否かの判別を行う（ステップＳ２０）。１０本分の検体容器１０について乳び度の測定が終了していない場合、ＣＰＵ４０は、カメラ移動部４４を制御してカメラ支持部２８を更に検体ラック６の搬送方向に移動させて残りの本数分ステップＳ１７〜１９を繰り返し、全ての検体の乳び度の測定が終了したか否かの判別を行う（ステップＳ２０）。全ての検体の乳び度の測定が終了した場合は、カメラ支持部２８の移動を終了する（ステップＳ２１）。   Next, the CPU 40 determines whether or not the milkiness of the samples in the 10 sample containers 10 has been measured (step S20). If the measurement of milkiness has not been completed for 10 sample containers 10, the CPU 40 controls the camera moving unit 44 to further move the camera support unit 28 in the transport direction of the sample rack 6 and the remaining number of tubes. Minute steps S17 to 19 are repeated, and it is determined whether or not the measurement of the milkiness of all the samples has been completed (step S20). When the measurement of the chyle degree of all the samples is completed, the movement of the camera support unit 28 is terminated (step S21).

次に、ＣＰＵ４０は、コンベア移動部４６を制御して移動コンベア７により検体ラック載置部８上の検体ラック６の位置を更に搬送方向に移動させて検体ラック６を検体ラック載置部８から搬出する（ステップＳ２２）。   Next, the CPU 40 controls the conveyor moving unit 46 to further move the position of the sample rack 6 on the sample rack mounting unit 8 in the transport direction by the moving conveyor 7 to move the sample rack 6 from the sample rack mounting unit 8. Unload (step S22).

この実施形態に係る検体認識装置２によれば、検査する検体の性状の種類に応じて背景板２２を上下に移動させ、背景の色彩を変更した上で第２ＣＣＤカメラ１６による検体容器１０内の検体の撮影を行うことにより、画像データから所定領域のＲ（赤色）、Ｇ（緑色）、Ｂ（青色）の階調の値が正確に計測できるため、検体容器１０内の検体が規格検体であるか否かを正確に判定することができる。   According to the sample recognizing apparatus 2 according to this embodiment, the background plate 22 is moved up and down in accordance with the type of the property of the sample to be examined, the background color is changed, and then the second CCD camera 16 is used to store the sample in the sample container 10. By photographing the sample, the R (red), G (green), and B (blue) gradation values of the predetermined region can be accurately measured from the image data, so that the sample in the sample container 10 is a standard sample. Whether or not there is can be accurately determined.

また、上述の実施形態においては、１０本ラックに検体容器１０が１０本立てられた場合を例に説明しているが、検体認識装置２に用いることができるラックであれば何本ラックであってもよい。   In the above-described embodiment, the case where 10 sample containers 10 are set up in 10 racks is described as an example. However, any number of racks can be used as long as the rack can be used for the sample recognition device 2. Also good.

また、上述の実施形態においては、検体容器１０の背景について上半分が白色、下半分が黒色に彩色された背景板２２を例に説明しているが、背景板２２の代わりに画面の色彩が変化する液晶パネルを用いてもよい。   In the above-described embodiment, the background plate 22 in which the upper half is colored white and the lower half is colored black is described as an example of the background of the sample container 10, but the screen color is changed instead of the background plate 22. A changing liquid crystal panel may be used.

また、上述の実施形態においては、背景を白色に設定して第２ＣＣＤカメラ１６により検体容器１０の撮影を行った後、背景を黒色に設定して検体容器１０の撮影を行っているが、検査する検体の性状の種類を指定するボタンを設け、操作者がボタンを操作することにより検査する検体の性状の種類を指定すると、それに応じて背景の色彩を変更して検体容器１０の撮影を行うようにしてもよい。   In the above-described embodiment, the background is set to white and the sample container 10 is imaged by the second CCD camera 16, and then the background is set to black and the sample container 10 is imaged. When the operator designates the type of specimen property to be examined by operating the button, the background color is changed accordingly, and the specimen container 10 is imaged. You may do it.

２…検体認識装置、４…搬送コンベア、６…検体ラック、７…移動コンベア、８…検体ラック載置部、１０…検体容器、１２…第１ＣＣＤカメラ、１４…第１照明部、１６…第２ＣＣＤカメラ、１８…第２照明部、２０…２次元レーザー変位センサ、２２…背景板、２８…カメラ支持部、４０…ＣＰＵ、４４…カメラ移動部、４５…記憶部、４６…コンベア移動部、４８…背景変更部。 DESCRIPTION OF SYMBOLS 2 ... Sample recognition apparatus, 4 ... Conveyor, 6 ... Sample rack, 7 ... Moving conveyor, 8 ... Sample rack mounting part, 10 ... Sample container, 12 ... 1st CCD camera, 14 ... 1st illumination part, 16 ... 1st 2CCD camera, 18 ... second illumination unit, 20 ... two-dimensional laser displacement sensor, 22 ... background plate, 28 ... camera support unit, 40 ... CPU, 44 ... camera moving unit, 45 ... storage unit, 46 ... conveyor moving unit, 48. Background change part.

Claims (9)

検体ラックに立てられた検体容器の上部を撮影する第１撮影部と、
前記第１撮影部により撮影した前記検体容器の部位よりも下部の所定の部位を撮影する第２撮影部と、
前記第１撮影部により撮影された画像の画像データに基づいて前記検体容器の形状が規格容器の形状であるか否かを判定する第１判定部と、
前記第２撮影部により撮影を行う場合に前記検体容器の背景を白色の背景または黒色の背景に変更する背景変更部と、
前記第２撮影部により撮影された画像の画像データに基づいて前記検体容器及び前記検体容器内の検体の色相を判定する第２判定部と
を備えることを特徴とする検体認識装置。 A first imaging unit for imaging the upper part of the sample container set up on the sample rack;
A second imaging unit that images a predetermined part below the part of the sample container imaged by the first imaging part;
A first determination unit that determines whether or not the shape of the sample container is a shape of a standard container based on image data of an image captured by the first imaging unit;
A background changing unit that changes the background of the sample container to a white background or a black background when performing imaging by the second imaging unit;
A sample recognition apparatus comprising: a second determination unit that determines a hue of the sample container and the sample in the sample container based on image data of an image captured by the second imaging unit. 前記第１撮影部及び前記第２撮影部を前記検体ラックに沿って移動させる移動部を備え、
前記第１撮影部及び前記第２撮影部により前記検体ラックに立てられた複数の前記検体容器を順次撮影することを特徴とする請求項１に記載の検体認識装置。 A moving unit that moves the first imaging unit and the second imaging unit along the sample rack;
The sample recognition apparatus according to claim 1, wherein the plurality of sample containers set up on the sample rack are sequentially photographed by the first photographing unit and the second photographing unit. 前記第１判定部は、前記検体容器の高さと前記検体容器の直径の少なくとも一方に基づいて前記検体容器が規格容器であるか否かを判定することを特徴とする請求項１または２に記載の検体認識装置。   The first determination unit determines whether the sample container is a standard container based on at least one of a height of the sample container and a diameter of the sample container. Specimen recognition device. 前記第１判定部は、前記検体容器の蓋の傾き及び浮き状態の少なくとも一つに基づいて前記検体容器が規格容器であるか否かを判定することを特徴とする請求項１または２に記載の検体認識装置。   The said 1st determination part determines whether the said sample container is a specification container based on at least one of the inclination of the lid | cover of the said sample container, and a floating state, The said container is characterized by the above-mentioned. Specimen recognition device. 前記第１判定部は、前記検体容器にパラフィルムが巻きつけてあるか否かに基づいて前記検体容器が規格容器であるか否かを判定することを特徴とする請求項１または２に記載の検体認識装置。   The said 1st determination part determines whether the said sample container is a specification container based on whether the parafilm is wound around the said sample container. Specimen recognition device. 前記第２判定部は、
前記背景変更部により前記検体容器の背景を白色の背景にした状態において前記第２撮影部により撮影された前記画像の画像データに基づいて前記検体容器及び前記検体容器内の検体の色相を判定することを特徴とする請求項１〜５のいずれか一項に記載の検体認識装置。 The second determination unit includes
The hue of the specimen container and the specimen in the specimen container is determined based on image data of the image photographed by the second photographing section in a state where the background of the specimen container is set to a white background by the background changing section. The sample recognition apparatus according to any one of claims 1 to 5, wherein 前記第２判定部は、
前記背景変更部により前記検体容器の背景を白色の背景にした状態において前記第２撮影部により撮影された前記画像の画像データに基づいて前記検体容器内の検体の溶血度を測定することを特徴とする請求項１〜６のいずれか一項に記載の検体認識装置。 The second determination unit includes
The hemolysis degree of the specimen in the specimen container is measured based on the image data of the image photographed by the second photographing section in a state where the background of the specimen container is a white background by the background changing section. The specimen recognition apparatus according to any one of claims 1 to 6. 前記第２判定部は、
前記背景変更部により前記検体容器の背景を黒色の背景にした状態において前記第２撮影部により撮影された前記画像の画像データに基づいて前記検体容器内の検体の乳び度を測定することを特徴とする請求項１〜７のいずれか一項に記載の検体認識装置。 The second determination unit includes
Measuring the milkiness of the specimen in the specimen container based on the image data of the image photographed by the second photographing section in a state where the background of the specimen container is a black background by the background changing section. The specimen recognition apparatus according to claim 1, wherein the specimen recognition apparatus is characterized. 前記検体ラックに立てられた前記検体容器に対して上方向からレーザー光を照射することにより前記検体容器までの距離を計測する計測部と、
前記計測部により計測した結果に基づいて前記検体容器の蓋の有無を判定する蓋判定部と
を備えることを特徴とする請求項１〜８のいずれか一項に記載の検体認識装置。 A measuring unit that measures the distance to the sample container by irradiating the sample container set up on the sample rack with laser light from above;
The sample recognition apparatus according to claim 1, further comprising a lid determination unit that determines presence or absence of a lid of the sample container based on a result measured by the measurement unit.
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