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1. 发明授权

US06318892B1 Radiography apparatus with rotatably supported cylindrical ring carrying image pickup unit 失效
标题翻译：具有可旋转支撑的圆柱形环承载图像拾取单元的放射摄影装置
公开(公告)号：US06318892B1
公开(公告)日：2001-11-20
申请号：US09425300
申请日：1999-10-25
申请人： Tsutomu Suzuki , Takaaki Kobiki , Hiroshi Takagi , Nobuhiko Matsui
发明人： Tsutomu Suzuki , Takaaki Kobiki , Hiroshi Takagi , Nobuhiko Matsui
IPC分类号： H05G102
CPC分类号： A61B6/4441 , A61B6/032 , A61B6/107 , A61B6/504 , H05G1/02 , H05G1/60
摘要： A radiography apparatus is constituted by an image pickup unit including an X-ray source for irradiating cone shaped X-ray beams to a patient under examination and an image receptor disposed opposite the x-ray source for receiving x-ray image data of the patient by the irradiated cone shaped x-ray beam; a cylindrical ring which carries the image pickup unit, defines a sufficient space to receive the patient therein so as to permit relative positional change of the patient with respect to the image pickup unit and is supported so as to permit rotation around its center axis; a second arm, an image pickup unit; a first video image processing unit; a second video image processing unit; and a change-over device which changes-over the x-ray image data obtained from the image pickup unit either to the first video image processing unit or to the second video image processing unit, whereby a three-dimensional x-ray image of the patient is obtained depending on necessity during an IVR while temporarily resting or interrupting the IVR.
摘要翻译：射线照相设备由包括用于将锥形X射线束照射到被检查患者的X射线源的图像拾取单元和与x射线源相对设置的用于接收患者的X射线图像数据的图像接收器通过辐射的锥形X射线束; 承载图像拾取单元的圆柱形环限定了足够的空间以将患者接纳在其中，以允许患者相对于图像拾取单元的相对位置改变，并被支撑以允许绕其中心轴线旋转; 第二臂，图像拾取单元; 第一视频图像处理单元; 第二视频图像处理单元; 以及将从摄像单元获得的x射线图像数据切换到第一视频图像处理单元或第二视频图像处理单元的切换装置，由此将三维X射线图像 IVR期间根据需要获得患者，同时临时休息或中断IVR。

2. 发明授权

US5339175A Image capture apparatus having means for detecting the thickness of a document to be captured 失效
标题翻译：具有用于检测要被捕获的文件的厚度的装置的图像捕获装置
公开(公告)号：US5339175A
公开(公告)日：1994-08-16
申请号：US028100
申请日：1993-03-08
申请人： Kyoichi Omata , Nobuhiko Matsui
发明人： Kyoichi Omata , Nobuhiko Matsui
IPC分类号： H04N1/04 , G06T1/00 , H04N1/00 , H04N1/12 , H04N1/193 , H04N1/203
CPC分类号： H04N1/00716 , H04N1/00732 , H04N1/00795 , H04N1/121 , H04N1/203 , H04N1/2032 , H04N1/193
摘要： An image capture apparatus optically scans a document as the document is being transported, and includes transporting means, a read section including first and second plates, detecting means, and actuator means. The transporting means moves documents along a predetermined path. The first and second plates face each other and guide a document received from the transporting means. At least one of the first and second plates defines an aperture therein through which light from a light source is directed onto a prescribed region of the document in motion therebetween. The detecting means detects the thickness of the document moving along the predetermined path, and generates an output drive control signal representative of the thickness of the document. The actuator means is responsive to the drive control signals from the drive control means for moving at least one of the aperture plates in a direction that is perpendicular to a document scanning surface. The movement of the actuator means provides a minimum space between the document and the first and second plates that still allows passage of the document therebetween without the document oscillating from side to side or becoming wrinkled. The permits documents to be scanned and produce images thereof without distortion or blurring.
摘要翻译：图像捕获设备在正在传输文件时光学扫描文档，并且包括传送装置，包括第一和第二印版的读取部分，检测装置和致动器装置。传送装置沿预定路径移动文件。第一和第二板彼此面对并引导从传送装置接收的文件。第一板和第二板中的至少一个在其中限定了一个孔，来自光源的光通过该孔被引导到在其间运动的文件的规定区域。检测装置检测原稿沿着预定路径移动的厚度，并产生表示文件厚度的输出驱动控制信号。致动器装置响应来自驱动控制装置的驱动控制信号，用于沿垂直于文件扫描表面的方向移动至少一个孔板。致动器装置的运动提供了文件与第一和第二板之间的最小空间，其仍然允许文件在其间通过，而文件不会从一侧到另一侧摆动或起皱。要扫描许可证文件并产生图像而不失真或模糊。

3. 发明授权

US4931881A Method of reducing digital images 失效
标题翻译：减少数字图像的方法
公开(公告)号：US4931881A
公开(公告)日：1990-06-05
申请号：US346034
申请日：1989-05-01
申请人： Nobuhiko Matsui , Kikuo Mita
发明人： Nobuhiko Matsui , Kikuo Mita
IPC分类号： H04N1/403 , G06K9/38 , G06T1/00 , H03K5/08 , H04N1/40
CPC分类号： G06K9/38 , H04N1/40 , G06K2209/01
摘要： An image binarization system in which the threshold value used for the binarization process can be adjusted to thereby enable the process to be made more accurate and avoid loss of black areas in characters in the process of digitizing and conversion. The threshold value is based on the average value of pixel density values around the pixels to be binarized, and is corrected downward when the average density value of the surrounding pixels is larger than a specific boundary value, and upward when the average value is smaller than the said boundary value.
摘要翻译：可以调整用于二值化处理的阈值的图像二值化系统，从而能够使处理更准确，并避免数字化和转换过程中的黑色区域的字符丢失。阈值基于要二值化的像素周围的像素密度值的平均值，并且当周围像素的平均浓度值大于特定边界值时向下校正，并且当平均值小于所述边界值。

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