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1. 发明专利

JPH07162668A IMAGE COMMUNICATION SYSTEM 失效
公开(公告)号：JPH07162668A
公开(公告)日：1995-06-23
申请号：JP30528493
申请日：1993-12-06
申请人： TOSHIBA CORP , TOSHIBA MEDICAL ENG
发明人： KIHARA TOMOHIKO , TAKAYANAGI NOBORU , KANEKO TAKUMI , YONESHIMA TAKEHARU
IPC分类号： H04N1/387
摘要： PURPOSE:To reduce the burdens of processing on a client side by separately transferring images and overlays and simultaneously transferring auxiliary information. CONSTITUTION:In an imager server 2, the overlays are magnified in a magnification device 18, image data are converted to a desired gradation by a gradation converter 19, the images are magnified by an image magnification device 20 further and the images and the overlays are superimposed by a superimposing/ black-and-white inversion device 22. Thus, the overlays and the image data for which the different numbers of picture elements are maintained are transferred on the client side and a superimposing processing or the like thereafter are performed on the side of the imager server 2. Thus, the need of the processings of magnification and superimposing, etc., on the client side is eliminated and throughput and response time are improved. Also, the constitution of a client is simplified and the burdens of the processing are reduced.

2. 发明专利

JPH0767868A COMPUTER TOMOGRAPH 失效
公开(公告)号：JPH0767868A
公开(公告)日：1995-03-14
申请号：JP21952093
申请日：1993-09-03
申请人： TOSHIBA CORP
发明人： OHASHI AKINAMI , KIHARA TOMOHIKO
IPC分类号： A61B6/03
摘要： PURPOSE:To collect projection data at uniform projection position intervals at the same projection angle by changing the spacings of the slices that plural detectors collect according to the speed of helical scan. CONSTITUTION:An X-ray tube 10b and detector 14b pair are previously rotated by an angle theta indicating theta=DELTAthetaX{(D/2)-W}/d relative to the X-ray 10a and detector 14a pair, where w: the width in the slice thickness direction of an X-ray beam in a testee; W: a distance between the central positions of the X-ray detector 14a and detector 14b in a Z-axis direction; M: the number of views per 360 deg.; DELTAtheta: a difference in projection angle between a view and a view; d: a distance at which a bed moves between the view and the view; D: a distance at which the bed moves during 360 deg. rotation of the X-ray tube. The bed, therefore, moves at a high speed and the projection data are collectable at the uniform projection position intervals even if the distance D at which the bed moves is larger than twice twofold the width w of the slice thickness direction of the X-ray beam.

3. 发明专利

JPS6352085A NUCLEAR MEDICAL IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPS6352085A
公开(公告)日：1988-03-05
申请号：JP19520986
申请日：1986-08-22
申请人： TOSHIBA CORP
发明人： KIHARA TOMOHIKO , SUZUKI KAORU
IPC分类号： G01T1/164 , G06T3/40
摘要： PURPOSE:To permit direct formation of an arbitrarily magnified image in relation to detection of gamma rays discrete with time by the use of a memory for just one sheet by providing a random number generating means for adding the random numbers of a prescribed bit length to the lower position of the output from a subtraction means. CONSTITUTION:An A/D conversion means 1 converts the analog signal l1 outputted from a gamma ray detector to a digital signal l2 and a means 2 for assigning the origin of the magnified image assigns the origin of the magnified image to an address space of 1 times magnification ratio. The subtraction means 5 subtracts the output l3 of the means 2 from the output l2 of the means 1. A multiplication means 6 multiplies a series of the numerical values, the upper positions of which are the output l6 of the means 5 and the lower positions of which are the output l4 of the random number generating means 4 for generating the random numbers of the specified bit length and the output l5 of an magnification ratio assigning means 4 for assigning the arbitrary magnification ratio. The smoothly magnified image is obtd. by using the integer part l8 of the calculation result thereof as an address for the magnified image. The bit length of the output l2 of the means 1 is n-bit in minimum in the case of 2 image size and the output l3 of the means 2 is similarly n-bit. The output l6 of the means 5 is n-bit as well.

4. 发明专利

JPS6312985A RADIATION ENERGY DISCRIMINATING CIRCUIT 失效
公开(公告)号：JPS6312985A
公开(公告)日：1988-01-20
申请号：JP15739286
申请日：1986-07-03
申请人： TOSHIBA CORP
发明人： KIHARA TOMOHIKO , SUZUKI KAORU
IPC分类号： G01T1/17 , G01T1/164
摘要： PURPOSE:To obtain a discriminating circuit whose circuit scale is small, and which can change easily the upper limit and the lower limit of an energy discriminating level, by providing an A/D converter and a memory device on the circuit. CONSTITUTION:An energy signal (a) of a radiant ray which has been made incident on a radiation measuring instrument is converted to a digital signal (d) by an A/D converter 1, and outputted to a memory device 2. In the device 2, the digital signal (d) is used as an address and whether the energy signal (a) exists within a discriminating range or not is outputted. Accordingly, by this energy discrimination, an error caused by an influence of scattering is reduced. Also, since the device 2 which has stored a marker of an energy discriminating range is provided within a prescribed address range, and analog window comparator becomes unnecessary, by which a circuit scale can be reduced. Also, as for setting of an energy discriminating level corresponding to plural different radiation sources, it is possible to cope with by providing plural input/output ports on the device 2, and storing a marker of a different energy discriminating range at every input/output port.

5. 发明专利

JPS62281926A ELECTROCARDIOGRAPH WAVE FORM RECORDER 失效
公开(公告)号：JPS62281926A
公开(公告)日：1987-12-07
申请号：JP12349186
申请日：1986-05-30
申请人： TOSHIBA CORP
发明人： SUZUKI KAORU , KIHARA TOMOHIKO
IPC分类号： A61B5/0472 , A61B5/04 , A61B5/0432

6. 发明专利

JPH0935076A METHOD AND DEVICE FOR FORMING CURVED SURFACE 失效
公开(公告)号：JPH0935076A
公开(公告)日：1997-02-07
申请号：JP18161495
申请日：1995-07-18
申请人： TOSHIBA CORP
发明人： SONE JUNJI , KIHARA TOMOHIKO , INOUE ATSUO
IPC分类号： G01B11/24 , G06T11/20 , G06T17/30
摘要： PROBLEM TO BE SOLVED: To represent fine unevenness on a curved surface and flexibly control the shape of a wide area. SOLUTION: A general border Gregory curved surface generation part 9 generates a general border Gregory curved surface with outline shape data extracted from three-dimensional measurement data and CT data and an NURBS curved surface generation part 11 generates an NURBS curved surface showing the deviation between the general border Gregory curved surface and an extrapolated shape; and a general border Gregory-NURBS curved surface generation part 12 blends those general border Gregory curved surface and NURBS curved surface to generate a general border Gregory-NURBS curved surface.

7. 发明专利

JPH0698896A CUBIC MODEL GENERATOR 失效
公开(公告)号：JPH0698896A
公开(公告)日：1994-04-12
申请号：JP24991492
申请日：1992-09-18
申请人： TOSHIBA CORP , TOSHIBA MEDICAL ENG
发明人： KIHARA TOMOHIKO , IIDA NORIYUKI
IPC分类号： A61B19/00 , B29C35/08 , B29C67/00
摘要： PURPOSE:To enable the shortening of molding time of a solid model by laminating multi-tomographic slice images in which a subject part is divided in a plurality of blocks to mold cubic model pieces individually. CONSTITUTION:A three-dimensional data of a subject organ inputted is converted into multi-tomographic slice data at a lamination pitch of a modeling device 3 with a pre-processing section of a model data generator. The slice data thus obtained are divided into a plurality of blocks with a blocking device 4 grouping a plurality of continuous slice data as one block. Four slice data picked up one at a time from the respective blocks are arranged with a configuration device 5 being separated as one frame to form one layer of model data. With the modeling device 3, the lowest layer and the subsequent layer of the blocks are used sequentially to mold solid models of the blocks in a simultaneous process being laminated on one layer upon another already hardened. When the solid models of the blocks are completed, the model pieces are put together to finish a solid model of the subject organ thereby enabling the generation of the solid model in a short time.

8. 发明专利

JPS6385483A ENERGY SENSITIVITY CORRECTOR 失效
公开(公告)号：JPS6385483A
公开(公告)日：1988-04-15
申请号：JP23347186
申请日：1986-09-30
申请人： TOSHIBA CORP
发明人： KIHARA TOMOHIKO , SUZUKI KAORU
IPC分类号： G01T1/164
摘要： PURPOSE:To correct deviation by setting a window at an arbitrary and adequate width around the peak point which is ought to exist intrinsically, determining an average value with the event entering the window and estimating the deviation from the peak from said value. CONSTITUTION:The window is set at the arbitrary and adequate width around the peak point which is ought to exist intrinsically is set by a window width setting means 1. The event energy Zi entering the window is then discriminated by an energy discriminating means 2. The discriminated event energy Zi is cumulatively added by an energy value adding part 3, by which SIGMAZi is determined. On the other hand, the event number N from the energy discriminating means 2 is counted by a number counting part 4. SIGMAZi is divided by N and the average value is determined by a dividing part 5. The determined average value is inputted to an error correcting means 7, where the deviation from the true value is corrected.

9. 发明专利

JPH0698897A CUBIC MODEL GENERATOR 失效
公开(公告)号：JPH0698897A
公开(公告)日：1994-04-12
申请号：JP25016492
申请日：1992-09-18
申请人： TOSHIBA CORP , TOSHIBA MEDICAL ENG
发明人： FURUHATA KENTAROU , KIHARA TOMOHIKO
IPC分类号： A61B19/00
摘要： PURPOSE:To enable the generating of a solid model efficiently for a physician as desired by picking up a multi-tomographic model data from a three- dimensional image produced and displayed from a binary image to mold a cubic model. CONSTITUTION:A multi-tomographic image of a specimen obtained by starting a tomographic device 1 is supplied into an image binary coding device 2 and binary-coded based on a threshold adjusted with a binary coding parameter input section 3 via an interpolation processing between slices according to a lamination pitch of a modeling device 10. The results are supplied to a three- dimensional image generation/observation device 4 and displayed on a monitor 6. Then, an isolated part and a void contained in a three-dimensional data for a sold model are detected with a support member/discharge port adder 7 and a cubic image indicating a prototype of the solid model is supplied to a model data generator 8, with which the image is transformed to a cubic model format of actual dimensions to generate a model data. The data is transmitted to a modeling device 10 at a remote location via an image data communicator 9 and laminated by a model data to mold a solid model.

10. 发明专利

JPS63172982A SCATTERED RAYS CORRECTING DEVICE 失效
公开(公告)号：JPS63172982A
公开(公告)日：1988-07-16
申请号：JP573987
申请日：1987-01-12
申请人： TOSHIBA CORP
发明人： KIHARA TOMOHIKO
IPC分类号： G01T1/164
摘要： PURPOSE:To obtain an image which is quantitatively superior by estimating a scattered component from the energy spectrum of each picture element constituting a gamma-ray image and correcting the image with the estimated scattered component. CONSTITUTION:An input circuit 15 is applied with X and Y position data detected by a gamma camera (not shown in figure and data Z indicating the energy intensity of gamma rays counted for the picture element and they are converted into digital data. Those data are applied to a gathering processing circuit 17 and the data Z in a certain energy range is discriminated by a wave height discriminating circuit 17 and applied to the gathering processing circuit 17 at the same time. The X and Y data from the circuit 17 are recorded in an image memory 18. The energy spectrum of each picture element is stored as the Z data in a memory 19 and a control means 20 estimates the scattered component from its contents and corrects the contents of the image memory 18.

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