公开(公告)号：US4143370A

公开(公告)日：1979-03-06

申请号：US809878

申请日：1977-06-24

申请人： Teruo Yamanaka ,  Takayuki Kato ,  Osamu Ozeki ,  Kazuo Sato ,  Minoru Bito

发明人： Teruo Yamanaka ,  Takayuki Kato ,  Osamu Ozeki ,  Kazuo Sato ,  Minoru Bito

IPC分类号： G01S13/34 ,  G01S13/93 ,  G01S9/44

CPC分类号： G01S13/931 ,  G01S13/34 ,  G01S2013/9353 ,  G01S2013/9375

摘要： An improvement of a vehicle collision anticipating method and device using transmitted and reflected frequency-modulated continuous waves is provided. A low frequency wave is produced by mixing a part of transmitted wave and a reflected wave from the object. The low frequency wave and a Doppler signal obtained from the low frequency wave are signal processed so as to generate signals. A predetermined distance range is obtained by multiplying a time which is determined by the distance between the vehicle and object and the velocity of said object with respect to the vehicle obtained from the Doppler signal, by a relative velocity of the object with respect to the vehicle. A collision of the object against the vehicle is anticipated by detecting the object entering the predetermined distance range in front of the vehicle.

公开(公告)号：US4048613A

公开(公告)日：1977-09-13

申请号：US551719

申请日：1975-02-21

申请人： Hajime Ito ,  Teruo Yamanaka ,  Osamu Ozeki

发明人： Hajime Ito ,  Teruo Yamanaka ,  Osamu Ozeki

IPC分类号： B60Q1/44 ,  B60R21/00 ,  B60T7/12 ,  B60T17/22 ,  G01S13/93 ,  G08G1/16 ,  G08G1/00

CPC分类号： G01S13/931 ,  G08G1/166 ,  G01S2013/9346

摘要： In a vehicle an alarm issues a warning signal just before actuation of an automatic emergency brake which operates in response to the relative speed and relative distance beween the vehicle and an obstacle in the vehicle's path.

公开(公告)号：US5280542A

公开(公告)日：1994-01-18

申请号：US752642

申请日：1991-08-28

申请人： Osamu Ozeki ,  Kazunori Higuchi ,  Shin Yamamoto

发明人： Osamu Ozeki ,  Kazunori Higuchi ,  Shin Yamamoto

IPC分类号： G01B11/00 ,  G01S7/497 ,  G01S17/42 ,  G01S17/89 ,  G06K9/00 ,  G01B11/14 ,  G06K9/46 ,  H04N7/00

CPC分类号： G01S7/497 ,  G01B11/00 ,  G01B11/002 ,  G01S17/42 ,  G01S17/89

摘要： XYZ coordinates of an object are measured by projecting pulse slit light onto the object, imaging the slit line formed on the surface of the object by a TV camera, and processing the video signal from the camera according to the scanning signals from the camera. The position of the slit line on the camera is detected, based on the weighted average of the intensity values of the video signal. The relation of the position of the slit line to the actual XYZ coordinates on the object has been previously established, taking account of the distortion of the lens of the TV camera and stored in a look-up table. Data read from this table is stored in a memory in synchronism with the projection of each pulse slit light. The XYZ coordinates on the object can be accurately detected even though its physical position varies at a high speed or its reflectivity changes widely.

摘要翻译： PCT No.PCT / JP90 / 01716 Sec。 371日期1991年8月28日 102（e）日期1991年8月28日PCT 1990年12月26日PCT PCT。 公开号WO91 / 10111 日期：1991年7月11日。通过将物体上的脉冲狭缝光投射到物体上，通过电视摄像机对形成在物体表面上的切割线进行成像，并根据照相机处理来自照相机的视频信号来测量物体的XY坐标 从相机扫描信号。 基于视频信号的强度值的加权平均值来检测相机上的切割线的位置。 考虑到电视摄像机的镜头的失真并存储在查找表中，预先确定了切割线的位置与物体上的实际XYZ坐标的关系。 从该表读取的数据与每个脉冲狭缝光的投影同步地存储在存储器中。 即使其物理位置高速变化或其反射率变化较大，也可以精确地检测物体上的XYZ坐标。

公开(公告)号：US5517311A

公开(公告)日：1996-05-14

申请号：US248215

申请日：1994-05-24

申请人： Akihiro Takeuchi ,  Tetsuhiko Nomura ,  Kazuhito Shibata ,  Toshihiko Tsukada ,  Osamu Ozeki ,  Shin Yamamoto

发明人： Akihiro Takeuchi ,  Tetsuhiko Nomura ,  Kazuhito Shibata ,  Toshihiko Tsukada ,  Osamu Ozeki ,  Shin Yamamoto

IPC分类号： G01B11/25 ,  G01B11/00

CPC分类号： G01B11/2518 ,  Y10T29/4927

摘要： A 3D volume measuring apparatus using an optical measuring technique performs an accurate measurement by using a common master clock signal to move a slit beam and to perform a measuring operation using the slit beam. An optical sensor has a slit beam source which projects the slit beam onto a surface of an object. A video camera receives an image of the optical cutting line. A master clock pulse generating unit is provided for generating master clock pulses. The slit beam is scanned on the object in synchronization with the master clock pulses. Information of the image of the optical cutting line is obtained in synchronization with the master clock pulses, so that the contour of the vertical section corresponding to the optical cutting line is obtained. A chamber volume correcting method using the 3D volume measuring apparatus is provided in which method an exact cutting depth for a cylinder head can be calculated so that a chamber of the cylinder head has an exact target volume. The cutting depth is determined in accordance with the measured volume of the chamber before a finish machining is performed.

摘要翻译： 使用光学测量技术的3D体积测量装置通过使用公共主时钟信号来移动狭缝光并执行使用狭缝光束的测量操作来执行精确的测量。 光学传感器具有将狭缝光束投射到物体的表面上的狭缝光束源。 摄像机接收光切割线的图像。 提供主时钟脉冲发生单元以产生主时钟脉冲。 与主时钟脉冲同步地在物体上扫描狭缝光束。 获得与主时钟脉冲同步的光学切割线的图像的信息，从而获得与光学切割线对应的垂直部分的轮廓。 提供了一种使用3D体积测量装置的室体积校正方法，其中可以计算出气缸盖的精确切割深度，使得气缸盖的室具有精确的目标体积。 切割深度根据在执行精加工之前的室的测量体积来确定。

公开(公告)号：US5129010A

公开(公告)日：1992-07-07

申请号：US538525

申请日：1990-06-15

申请人： Kazunori Higuchi ,  Osamu Ozeki ,  Shin Yamamoto

发明人： Kazunori Higuchi ,  Osamu Ozeki ,  Shin Yamamoto

IPC分类号： G01B11/25

CPC分类号： G01B11/25

摘要： A system for measuring three-dimensional shapes and dimensions includes: an imaging unit which faces an object with shape changes on the surface and images by means of a TV camera the slit line formed on the object surface by projecting slit light from a slit light source at a fixed angle; and a surface feature extraction member for extracting features representing the shape changes of the object surface, based on the changes of the XYZ coordinate values of the object surface detected by triangulation based on the centroid position of the intensity distribution of the slit line image corresponding to the scanning lines from the TV camera. Based on features thus extracted, the surface shape of the object can be measured rapidly with high precision.

摘要翻译： 用于测量三维形状和尺寸的系统包括：成像单元，其通过电视摄像机面对具有形状变化的物体和通过从狭缝光源突出狭缝光而形成在物体表面上的狭缝线的图像 固定角度; 以及表面特征提取构件，用于基于通过三角测量检测到的物体表面的XYZ坐标值的变化，提取表示物体表面的形状变化的特征，所述特征基于对应于所述物体表面的切割线图像的强度分布的质心位置 来自电视摄像机的扫描线。 基于如此提取的特征，可以高精度地快速测量物体的表面形状。

公开(公告)号：US4961155A

公开(公告)日：1990-10-02

申请号：US246131

申请日：1988-09-19

申请人： Osamu Ozeki ,  Kazunori Higuchi ,  Shin Yamamoto

发明人： Osamu Ozeki ,  Kazunori Higuchi ,  Shin Yamamoto

IPC分类号： G01B11/00 ,  G06T7/00

CPC分类号： G01B11/002 ,  G06T7/004 ,  G06T2207/30164

摘要： An XYZ coordinates measuring system has a slit light source for projecting a slit light beam onto the surface of a work to be measured with a predetermined angle. Furthermore a television camera takes a light line formed on the surface of the work by the slit light beam to generate an output video signal. A coordinate measuring circuit has a look-up table for previously storing the interrelationship between the horizontal and vertical imaging positions of the light line and the XYZ coordinates on the surface of the actual work. The coordinate measuring circuit is adapted to process the video signal to detect the horizontal and vertical imaging positions Ks and Ls of the light line and to output the XYZ coordinates on the surface of the work from the look-up table, depending on the detected horizontal and vertical imaging positions Ks and Ls, the XYZ coordinates on the surface of the work can thus be real-time measured along the light line.

摘要翻译： XYZ坐标测量系统具有狭缝光源，用于将狭缝光束以预定角度投影到待测量的工件的表面上。 此外，电视摄像机通过狭缝光束拍摄形成在工件表面上的光线，以产生输出视频信号。 坐标测量电路具有用于预先存储光线的水平和垂直成像位置与实际工件表面上的XYZ坐标之间的相互关系的查找表。 坐标测量电路适于处理视频信号以检测光线的水平和垂直成像位置Ks和Ls，并根据检测到的水平线从查找表输出工件表面上的XYZ坐标 并且垂直成像位置Ks和Ls可以沿着光线实时地测量工件表面上的XYZ坐标。