公开(公告)号：JPS6276872A

公开(公告)日：1987-04-08

申请号：JP21647585

申请日：1985-09-30

Applicant: TOSHIBA CORP

Inventor： FUJII MASAJI

IPC: G01N23/04 ,  H04N5/228

Abstract: PURPOSE:To eliminate burn phenomenon due to beam and to extend the life of the titled set by inserting a zoom blanking signal in a blanking signal for a prescribed time, outputting it, thereby blanking the zoom area of an image pickup tube. CONSTITUTION:In normal operation, a deflection circuit 21 outputs a horizontal drive signal HD, and a horizontal blanking signal generating circuit 24 supplies a horizontal blanking signal HP to a judgement circuit 31 and a horizontal zoom blanking signal generating circuit 26 by using the said signal HD for timing. The circuit 26 that is supplied the signal HP from the circuit 24 generates a pulse signal HZ of the width corresponding to the zoom area in the center of a picture from the signal HP, and supplies it to the judgement circuit 31. Accordingly, since the discharge of the image pickup tube 17 is executed in the process of shifting from the zoom operation to the normal operation, the accumulative charges in the zoom area 17b of the tube 17 can exactly be discharged, and the burn due to beam can be prevented.

公开(公告)号：JPS6275772A

公开(公告)日：1987-04-07

申请号：JP21454885

申请日：1985-09-30

Applicant: TOSHIBA CORP

Inventor： FUJII MASAJI ,  SHOJI TAKAO

IPC: A61B6/03 ,  G01N23/04 ,  G01T1/161 ,  G06T1/00

Abstract: PURPOSE:To easily correct the dislocation of each tomographic image generated in a state that the rotational center of a ring-shaped body to be tested is dislo cated by mounting a marker at a part of a scanner main body and correcting the dislocation of each image of the body to be tested by using corresponding marker data. CONSTITUTION:In a data detecting system 12 that detects radiograph data from a ring-shaped body 11 to be tested, an X-ray tube or a radiation generator 17, such as an RI, etc. is fixed at one end side of an arm 16 and a radiation detector 18 at the other end side and a marker 19 is provided so as to occupy a part of area within a radiation exposure path. When a body to be tested holding mechanism 13 is rotated and the body 11 to be tested is rotated in the circular direction of the body to be tested, the rotational center of the body to be tested is dislocated, however, on each picture D1, D2,... in which the picture is reconstituted, a marker data MD corresponding to the marker 19 is photographed, and each picture D1, D2,... is corrected by a CPU so that the marker data MD,... are positioned on the same line in a state keeping angles of theta1-theta4, thereby a three-dimensional position relation being corrected.

公开(公告)号：JPS61205900A

公开(公告)日：1986-09-12

申请号：JP4777285

申请日：1985-03-11

Applicant: TOSHIBA CORP

Inventor： FUJII MASAJI

IPC: G21K1/00 ,  H01J35/00

公开(公告)号：JPS6198241A

公开(公告)日：1986-05-16

申请号：JP21947184

申请日：1984-10-19

Applicant: Toshiba Corp

Inventor： KUROSAWA SHINICHI ,  FUJII MASAJI

IPC: G01N23/04 ,  A61B6/03

公开(公告)号：JPS6198238A

公开(公告)日：1986-05-16

申请号：JP21947284

申请日：1984-10-19

Applicant: Toshiba Corp

Inventor： TOMIZAWA MASAMI ,  FUJII MASAJI ,  NAKAMURA SHIGEO

IPC: G01N23/04 ,  A61B6/02 ,  A61B6/03

公开(公告)号：JPS6138552A

公开(公告)日：1986-02-24

申请号：JP16053684

申请日：1984-07-31

Applicant: Toshiba Corp

Inventor： UYAMA KIICHIRO ,  FUJII MASAJI

IPC: A61B6/03 ,  G01N23/04

CPC classification number: G01N23/046 ,  G01N2223/419

Abstract: PURPOSE:To obtain a tomographic image with high quality by dividing radiation absorption data obtained by transmitting the radiation through a body to be examined and obtaining individual image data from corrected data subjected to convolution. CONSTITUTION:Radiation absorption data which are outputted from individual radiation detecting elements of a radiation detector 8 when a radiation 7b is transmitted through a body 2 to be examined pass a data gathering part 12 and are stored divisionally as plural sets of divided radiation absorption data in a disc 14 or a main storage part 15. Divided radiation absorption data are read out by a command of a processing discriminating part 13 and are subjected to convolution in the first reconstituting processing part 20-1, and corrected data subjected to convolution are projected reverse from a radiation radiating direction of a radiation source 7 to obtain image data, and image data are synthesized by the second processing part 20-2 to obtain final image data, and this data is stored in an image memory 17. It is read out by the command of the discriminating part 13, and the tomographic image of the body 2 to be examined is displayed on a CRT display device 18.

Abstract translation: 目的：通过将通过将要检查的身体发射辐射获得的辐射吸收数据除以通过卷积的校正数据获得单独的图像数据，从而获得高质量的断层图像。 构成：当放射线7b通过被检体2透射通过数据收集部12时，从放射线检测器8的各个放射线检测元件输出的放射线吸收数据分割地存储为多组分割的辐射吸收数据 盘14或主存储部分15.通过处理识别部分13的命令读出分开的辐射吸收数据，并在第一重构处理部分20-1中进行卷积，并且卷积的经校正的数据被反转 从辐射源7的辐射辐射方向获得图像数据，并且图像数据由第二处理部分20-2合成以获得最终图像数据，并且该数据被存储在图像存储器17中。它被读出 鉴别部分13的命令和被检体2的断层图像显示在CRT显示装置18上。

公开(公告)号：JPS6114550A

公开(公告)日：1986-01-22

申请号：JP13595284

申请日：1984-06-30

Applicant: Toshiba Corp

Inventor： TOMIZAWA MASAMI ,  FUJII MASAJI ,  TSUJII OSAMU

IPC: A61B6/00 ,  G01N23/04

CPC classification number: G01N23/043

Abstract: PURPOSE:To improve the accuracy by regarding the range of predetermined radiation absorption data as an inclusion in an image obtained by irradiating a body to be inspected which has the inclusion with radiation, and calculating the ratio of the number of picture elements showing the inclusion and the total number of picture elements. CONSTITUTION:A scanner body 1 is equipped with a radiation source 1a and a radiation detector 1b which has plural radiation detecting elements opposite each other, an electric signal outputted by a detecting element is A/D-converted by a data collecting part 1d and stored as radiation absorption data in a main storage part 14. Then, the radiation absorption data is corrected and projection data is obtained by an image reproducing part 4 and projected reversely to obtain image data. Further, a CT value is calculated on the basis of a coefficient of radiation absorption to water. Then, an extracted area is set in a tomographic displayed by converting the brightness of the image data according to the CR value, and the number of picture elements of

Abstract translation: 目的：通过将预定的放射线吸收数据的范围作为包含在通过照射包含辐射的待检查体的图像获得的图像中来提高准确度，并且计算显示包含的像素数量的比例和 图片元素总数。 构成：扫描器主体1配备有具有彼此相对的多个辐射检测元件的辐射源1a和辐射检测器1b，由检测元件输出的电信号由数据收集部1d进行A / D转换并存储 作为主存储部分14中的辐射吸收数据。然后，校正辐射吸收数据，并且通过图像再现部分4获得投影数据并反向投影以获得图像数据。 此外，基于对水的辐射吸收系数计算CT值。 然后，通过根据CR值转换图像数据的亮度而将提取区域设置在显示的断层摄影中，并且对<= 400CT值的像素数进行计数以测量包含率。

公开(公告)号：JPS57119574A

公开(公告)日：1982-07-26

申请号：JP617181

申请日：1981-01-19

Applicant: Toshiba Corp

Inventor： FUJII MASAJI

IPC: H04N7/18

CPC classification number: H04N7/18

Abstract: PURPOSE:To eliminate a blur of an image by a picture reproduction system suitable for an X-ray fluorescent inspection device, etc., by scanning a TV camera, line by line, successively and also increasing a frame period during image pickup operation, and by reading data at the speed of a standard scanning system. CONSTITUTION:A welded steel tube 10 as a sample is conveyed, as shown by an arrow, at a constant speed by feed rollers 11 and 11. Further, an X-ray generator 12 is arranged inside of the steel tube 10. Transmitted X rays from the generator 12 is converted by a fluorescent multiplier tube 13 into an optical image, which is picked up by a TV camera 14; it is scanned by a camera control part 15, line by line, successively at a frame period faster than the speed of a standard scanning system to be extracted as a series of a video signal, so that it is supplied to picture memories 16a, 16b, and 16c. Under the command of a controller 17, length information is sent from a length measuring instrument 18 corresponding to the movement distance of the steel tube 10 and stored in the memories 16a-16c, consequently, the overall length of the steel tube 10 is inspected from images on TV monitors 19a-19c without any blur.

Abstract translation: 目的：为了通过适用于X射线荧光检查装置等的图像再现系统消除图像的模糊，通过逐行扫描电视摄像机并连续地增加图像拾取操作期间的帧周期，以及 通过以标准扫描系统的速度读取数据。 构成：作为样品的焊接钢管10如箭头所示，通过进给辊11,11进行一定速度的输送。此外，X射线发生器12配置在钢管10的内部。透射X射线 发光二极管12由荧光倍增管13转换为由电视摄像机14拾取的光学图像; 相机控制部15逐行地以比作为一系列视频信号提取的标准扫描系统的速度更快的帧周期连续扫描，从而将其提供给图像存储器16a，16b ，和16c。 在控制器17的指令下，根据钢管10的移动距离对长度测量仪18发送长度信息并存储在存储器16a-16c中，从而检查钢管10的总长度 电视显示器19a-19c上的图像没有任何模糊。

公开(公告)号：JPS5772483A

公开(公告)日：1982-05-06

申请号：JP14688380

申请日：1980-10-22

Applicant: Toshiba Corp

Inventor： FUJII MASAJI

IPC: H04N5/32 ,  A61B6/00 ,  H04N7/18

Abstract: PURPOSE:To facilitate a high-precision inspection, by not only improving the resolution in the standard TV system but also a djusting properly an angle between the welding direction of a welding part and the horizontal scanning by providing a means, which limits the scanning region of a TV camera, and a rotating mechanism which rotates the scanning face. CONSTITUTION:An X-ray TV flurorscopic device 11 consists of an X-ray generating device 12, an X-ray image intensifier 15, a lens 16, a TV camera 17, a camera control unit 18, a video monitor 19, and a rotating mechanism 21. A steel pipe 13 is supported on a steel pipe carrying line, and a boom 14 is inserted into the cylinder of the steel pipe 13, and the device 12 is fitted to the tip of the boom 14, and X rays irradiated to a welding part are generated. A vertical scanning control part which limits the scanning region of the camera due to the unit 18 and the scanning of the monitor 19 is provided to limit the scanning region of the camera 17. When the welding part is outside the limited scanning region of the camera, the mechanism 21 is driven to adjust the angle between the welding direction of the welding part and the horizontal scanning of the camera 17 into a prescribed range.

Abstract translation: 目的：为了便于高精度检测，不仅提高了标准电视系统的分辨率，而且通过提供一种限制扫描区域的手段来适当调整焊接部件的焊接方向与水平扫描之间的角度 的电视摄像机，以及使扫描面旋转的旋转机构。 构成：X射线电视发情装置11包括X射线产生装置12，X射线图像增强器15，透镜16，TV摄像机17，照相机控制单元18，视频监视器19和 旋转机构21.钢管13支撑在钢管输送线上，吊杆14插入钢管13的气缸中，装置12装配到悬臂14的前端，X射线 产生焊接部分。 提供限制由于单元18的照相机的扫描区域和监视器19的扫描的垂直扫描控制部分，以限制照相机17的扫描区域。当焊接部分在照相机的受限扫描区域之外时 驱动机构21，将焊接部的焊接方向和相机17的水平扫描之间的角度调整为规定的范围。

公开(公告)号：JPH09133521A

公开(公告)日：1997-05-20

申请号：JP29132095

申请日：1995-11-09

Applicant: TOSHIBA CORP

Inventor： UYAMA KIICHIRO ,  FUJII MASAJI ,  TAMAKI KIYOHIDE ,  MIZUGUCHI HIROSHI ,  YOSHIDA MASAYA

IPC: G01B15/00

Abstract: PROBLEM TO BE SOLVED: To measure the internal dimensions of a specimen in a short time by receiving an X-ray fan beam passed through the specimen by means of an X-ray line sensor and then determining the internal structure of specimen at an image processing section based on the detected values. SOLUTION: X-rays radiated from an X-ray tube 51 is passed through a specimen collimator 53 (53a, 53b) to produce an X-ray fan beam 54. A specimen 55 is carried in the direction substantially orthogonal to the X-ray fan beam 54 by a carrying means 57. The X-ray fan beam 54 is received by an X-ray line sensor 56 which then produces a detection value of X-ray. An image processing section 59 determines the internal structure of specimen 55 based on the detection values from X-ray line sensor 56.