会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 64. 发明授权
    • Method and apparatus for X-ray computed tomography
    • X线计算机断层扫描的方法和装置
    • US5640436A
    • 1997-06-17
    • US588918
    • 1996-01-19
    • Hiroyuki KawaiKensuke Sekihara
    • Hiroyuki KawaiKensuke Sekihara
    • G06T11/00A61B6/03
    • G06T11/005A61B6/5258Y10S378/901
    • A method for X-ray computed tomography includes a process for rotating around an object an X-ray source for applying a cone-beam X ray and a scanner having a two-dimensional X-ray detector mounted thereon for deriving projection data and a process for preparing a geometric distortion correction table for correcting an image geometric distortion of the two-dimensional X-ray detector for the projection data, for reconstructing a distribution of X-ray attenuation coefficients of the object from said corrected projection data. The method further includes a process for calculating a function for evaluating the correction table, a process for comparing the calculated value with a threshold value, a process for correcting the correction table through the interpolation based on the compared result, a process for correcting an image geometric distortion of the projection data by using the corrected table, a process for detecting a location of a view field boundary of the detector from the distortion-corrected projection data, and a process for generating the projection data of a predetermined width from the detected location of the view field boundary through the effect of the extrapolation. The method operates to reconstruct a distribution of X-ray attenuation coefficients of the object from the extrapolated projection data.
    • 一种X射线计算机断层摄影方法包括用于旋转物体的方法,用于施加锥形束X射线的X射线源和安装在其上的用于导出投影数据的二维X射线检测器的扫描仪,以及处理 用于准备用于校正投影数据的二维X射线检测器的图像几何失真的几何失真校正表,用于从所述校正的投影数据重建对象的X射线衰减系数的分布。 该方法还包括用于计算用于评估校正表的功能的处理,用于将计算的值与阈值进行比较的处理,基于比较结果通过插值校正校正表的处理,用于校正图像的处理 通过使用校正表的投影数据的几何失真,用于从失真校正的投影数据中检测检测器的视场边界的位置的处理以及从检测到的位置产生预定宽度的投影数据的处理 的视野边界通过外推的作用。 该方法用于根据外推投影数据重建对象的X射线衰减系数的分布。
    • 65. 发明授权
    • Method of labeling image data and device for the same using temporary
labels having a concentration relationship
    • 使用具有浓度关系的临时标签对图像数据和设备进行标记的方法
    • US5602940A
    • 1997-02-11
    • US539151
    • 1995-09-29
    • Yoshitsugu InoueHiroyuki Kawai
    • Yoshitsugu InoueHiroyuki Kawai
    • G06T7/60G06T5/00G06T7/00G06K9/36
    • G06T7/0081
    • When a leading end of a run on an upper row in a binary mask which performs raster scan over a binary image is detected, a run label which was assigned to the same run when scanning a row preceding the current row by one row is read out, and label diversion destination data is read from a concatenation table using the read run label as an address. A temporary label is determined by comparing a concatenated label, which indicates the minimum label value of the runs prior to the run on the upper row of which leading end is detected and adjacent to the run existing on the run on the lower row of the binary mask, with the diversion destination data read from the concatenation table. If one of them is 0, the other label data is issued as the temporary label. If both of them are 0, a new label is issued as the temporary label. If the compared label values are different from each and are not 0, the smaller label value is written into the concatenation table using the larger label value as the address. In the labeling process for a binary image data, a frequency of assignment of multiple labels to the same object is reduced, and thereby a load in a label integrating process is reduced.
    • 当检测到执行二进制图像上的光栅扫描的二进制掩码中的上一行上的运行的前端时,读出当前行当前行一行扫描行时分配给相同运行的运行标签 并且使用读取的运行标签作为地址从连接表中读取标签转移目的地数据。 通过比较连接标签来确定临时标签,该标签指示在检测到前导端的上行上的运行之前的运行的最小标签值,并且与在二进制文件的下行上的运行上存在的运行相邻 掩码,从连接表中读取转移目标数据。 如果其中一个为0,则其他标签数据将作为临时标签签发。 如果它们都为0,则会发出一个新标签作为临时标签。 如果比较的标签值与每个不同,并且不为0,则使用较大的标签值作为地址将较小的标签值写入级联表。 在二进制图像数据的标签处理中,减少了将多个标签分配给同一对象的频率,从而降低了标签集成处理中的负载。
    • 66. 发明授权
    • Method and apparatus for x-ray computed tomography
    • X线计算机断层扫描的方法和装置
    • US5590164A
    • 1996-12-31
    • US456382
    • 1995-06-01
    • Hiroyuki KawaiKensuke SekiharaShinichi Migita
    • Hiroyuki KawaiKensuke SekiharaShinichi Migita
    • A61B6/03G06T11/00A61B6/00
    • A61B6/032A61B6/4021A61B6/4078G06T11/005
    • An X-ray computed tomography apparatus includes a controller for shifting an X-ray focal spot position of an X-ray source, a plurality of first temporary holding devices respectively connected to X-ray detector elements to temporarily hold measured values of X-ray intensity transmitted through an object to be incident on the X-ray detector elements, a switch device for switching over connection between the X-ray detector elements and the first temporary holding devices, a controller for controlling switchover of the switch device, a transfer device for transferring the measured values from the first temporary holding devices to an interpolation calculating device, an interpolation calculating device for performing interpolation calculations on the projection data to generate projection data equivalent to projection data measured by using a measuring system virtually having twice as many X-ray detector elements as the arranged X-ray detector elements, a memory for holding parameters used for calculations in the interpolation calculating device, and an image reconstructor for reconstructing a tomographic image on the basis of the projection data generated by interpolation calculating device.
    • X射线计算机断层摄影装置包括用于移动X射线源的X射线焦斑位置的控制器,分别连接到X射线检测器元件的多个第一临时保持装置,以暂时保持X射线的测量值 透过要入射到X射线检测器元件上的物体的强度,用于切换X射线检测器元件和第一临时保持装置之间的连接的开关装置,用于控制开关装置的切换的控制器, 用于将测量值从第一临时保持装置传送到插值计算装置;插值计算装置,用于对投影数据执行插值计算,以产生与通过使用实际上具有两倍的X射线的测量系统测量的投影数据相当的投影数据, 射线检测器元件作为布置的X射线检测器元件,用于保持参数使用的存储器 d用于计算内插计算装置,以及图像重构器,用于基于由插值计算装置产生的投影数据重建断层图像。
    • 69. 发明授权
    • Antibiotic, Spicamycin
    • 抗生素,Spicamycin
    • US4565781A
    • 1986-01-21
    • US583108
    • 1984-02-24
    • Noboru OtakeYoichi HayakawaHiroyuki KawaiMasaya NakagawaKozo TanabeJunichiro Mochizuki
    • Noboru OtakeYoichi HayakawaHiroyuki KawaiMasaya NakagawaKozo TanabeJunichiro Mochizuki
    • A61K31/70A61K31/7042A61K31/7052A61P31/04A61P35/00C07H17/02C12P1/06C12P19/28C12P19/32C12R1/465C12P19/40C07H19/06
    • C07H17/02
    • An antibiotic, Spicamycin, having the physicochemical properties set forth below is produced by aerobically cultivating a Spicamycin-producing Streptomyces strain in a suitable culture medium, and recovering from the culture the antibiotic, Spicamycin.(1) Color and properties: Weakly acidic white powder(2) Melting point: 215.degree. to 220.degree. C. (decomposed)(3) Specific rotatory power: [.alpha.].sub.D.sup.25 =+15.degree. (C: 0.15, in methanol)(4) Elementary analysis (Found): C: 57.4%, H: 8.3%; N: 15.7%, O: 18.6%(5) Ultraviolet absorption spectrum (maximum):______________________________________ CH.sub.3 OH 264 nm (E.sub.1cm.sup.1% 257) 0.01N NaOH + CH.sub.3 OH 272 nm (E.sub.1cm.sup.1% 226) 0.01N HCl + CH.sub.3 OH 273 nm (E.sub.1cm.sup.1% 258) ______________________________________ (6) Infrared absorption spectrum (as measured by the potassium bromide method): As shown in FIG. 2.(7) Solubility in Solvent: Soluble in basic water, dimethyl sulfoxide, methanol, ethanol, n-propanol, and n-butanol. Sparingly soluble in water, acetone, ethyl acetate, and chloroform. Insoluble in benzene, ethyl ether, and hexane.(8) Thin layer chromatography (using "Silica Gel 60F.sub.254 " plate supplied by Merck & Co., Inc.):______________________________________ Developing solvent Rf value ______________________________________ Chloroform:Methanol (1:1) 0.34 ______________________________________ (9) NMR spectrum (400 MHz, in deuteromethanol): As shown in FIG. 3.
    • 具有下述物理化学性质的抗生素Spicamycin通过在合适的培养基中有条不紊地培养产生Spicamycin的链霉菌菌株产生,并从培养物中回收抗生素Spicamycin。 (1)颜色和性质:弱酸性白色粉末(2)熔点:215〜220℃(分解)(3)比旋光度:αD25= + 15℃(甲醇中C:0.15) (4)元素分析(实测值):C:57.4%,H:8.3% N:15.7%,O:18.6%(5)紫外吸收光谱(最大):-CH 3 OH 264nm(E1cm1%257)-0.01N NaOH + CH3OH 272nm(E1cm1%226)-0.01N HCl + CH3OH 273nm E1cm1%258) - (6)红外吸收光谱(通过溴化钾法测定):如图1所示。 (7)溶剂中的溶解度:溶于碱性水,二甲基亚砜,甲醇,乙醇,正丙醇和正丁醇。 微溶于水,丙酮,乙酸乙酯和氯仿。 不溶于苯,乙醚和己烷。 (8)薄层色谱法(使用由Merck&Co.,Inc。提供的“Silica Gel 60F254”板):显影溶剂Rf值 - 氯仿:甲醇(1:1)0.34 - (9)NMR谱(400MHz, 在氘甲醇中): 3。