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1. 发明专利

JPH11194096A EVALUATION METHOD AND INSPECTION APPARATUS OF PAINTED FACE 失效
公开(公告)号：JPH11194096A
公开(公告)日：1999-07-21
申请号：JP24865798
申请日：1998-09-02
申请人： TOYOTA MOTOR CORP
发明人： FUKUI TAKAHIRO
IPC分类号： G01B11/30 , G01N21/55 , G01N21/84
摘要： PROBLEM TO BE SOLVED: To qualify evaluation with respect to finish condition of a painted face, especially dust sensation. SOLUTION: A light-and-darkness patter light with repeated pattern of light- and-darkness is projected on an evaluation object face and a light-and-darkness pattern formed on the evaluation object face is imaged. A luminance distribution calculation part 24 calculates an intensity distribution in a repeating direction of a light-and-darkness pattern from the image taken. Then, a wavelength calculation part 26 Fourier-tranforms the intensity distribution and calculates a wavelength distribution that is an amplitude distribution with respective to wavelength. An interval integration part 28 calculates an integral value of an interval corresponding to a wavelength region (0.2-2.0 mm) with respect to dust sensation of the wavelength distribution. Based upon the integral value, the evaluation of the dust sensation and a large amplitude of a wave length region are judged.

2. 发明专利

JPH09318551A APPARATUS FOR PICKING UP IMAGE OF TUBULAR INNER SURFACE 失效
公开(公告)号：JPH09318551A
公开(公告)日：1997-12-12
申请号：JP15751696
申请日：1996-05-29
申请人： TOYOTA MOTOR CORP
发明人： FUKUI TAKAHIRO
IPC分类号： G01B11/30 , G01N21/88 , G01N21/954 , G03B15/00
摘要： PROBLEM TO BE SOLVED: To obtain a small apparatus for picking up the image of a tubular inner surface while illuminating the part to be picked up uniformly. SOLUTION: An image pick-up camera 1 provided with an illumination means is inserted into an objective tube and the image at the objective part of tubular inner surface is picked up while illuminating with an illuminating means. The illuminating means comprises a light source unit 13, a splitter for splitting the illumination light of the light source unit 13 into a plurality of split illumination lights, and a unit for guiding the plurality of split illumination lights to the objective part from directions making a predetermined illumination angle symmetrically with respect to the image pickup direction. The light source unit comprises an optical fiber 15 and a condenser lens 19, the splitter comprises a prism 23 for splitting the illumination light and the light guide unit comprises a pair of mirrors 25.

3. 发明专利

JPH08201308A SURFACE DEFECT DETECTING METHOD FOR PRODUCT AND DEVICE THEREOF 失效
公开(公告)号：JPH08201308A
公开(公告)日：1996-08-09
申请号：JP3432695
申请日：1995-01-31
申请人： TOYOTA MOTOR CORP
发明人： FUKUI TAKAHIRO
IPC分类号： G01B11/30 , G01N21/88
摘要： PURPOSE: To provide a method and a device for surely inspecting whether there is a defect or not on the surface of a product obtained by forging. CONSTITUTION: When the spot light from a light source 24 is irradiated to the surface of a product 3, the product 3 absorbs the light energy and is heated. This phenomenon does not occur on a defect portion, and the product 3 is photographed by an infrared camera 28 to be judged. An adjusting means 4 for correcting the tilt and adjusting the height is provided on a base plate 1 side fixing the product 3. The adjusting means 4 is automatically operated prior to a defect inspection, the tilt of the product 3 is corrected, the distance to the infrared camera 28 is adjusted, and measurement is invariably accurately conducted.

4. 发明专利

JPH0255948A AUTOMATIC MAGNETIC POWDER FLAW-DETECTOR 失效
公开(公告)号：JPH0255948A
公开(公告)日：1990-02-26
申请号：JP20772888
申请日：1988-08-22
申请人： TOYOTA MOTOR CORP
发明人： FUKUI TAKAHIRO , FUJIMORI KAZUO
IPC分类号： G01N27/84
摘要： PURPOSE:To obtain the stable result of inspection by deciding a threshold according to the peak brightness of brightness distribution in the case of binarization of image data. CONSTITUTION:An inspected object W to which magnetic powder liquid is stuck is photographed by a television camera C and the image data is transmitted to a picture element division means M1. In the picture element division means M1, image data of one image plane transmitted is divided every fine picture element to obtain a brightness signal of every picture element. In a brightness distribution conversion means M2, the brightness signal of every picture element obtained thus is arranged according to the brightness to obtain the distribution of the number of frequency picture elements of every brightness. Based on the data of the distribution of the number of picture elements of every brightness, the brightness (peak brightness) at which the number of picture elements is maximum is obtained in a peak detection means M3. In a binarization means M4, the threshold brightness is decided from the value of the peak brightness by previously set rule and the image data is binarized based on the threshold.

5. 发明专利

JPH01219505A AUTOMATIC INSPECTING DEVICE FOR FILM SMOOTHNESS 失效
公开(公告)号：JPH01219505A
公开(公告)日：1989-09-01
申请号：JP4566488
申请日：1988-02-26
申请人： TOYOTA MOTOR CORP
发明人： FUJIMORI KAZUO , SAKAKIBARA MASATO , FUKUI TAKAHIRO
IPC分类号： G01B11/30 , G01N21/88
摘要： PURPOSE:To detect the smoothness of the film automatically and accurately without flawing the film by providing a stripe pattern projecting means, a Fourier transforming means, a filter means, and a smoothness deciding means. CONSTITUTION:The stripe pattern projecting means M1 projects a predetermined basic stripe pattern on a coated body to be inspected. Then the Fourier transforming means M2 processes an image of the stripe pattern projected on the surface of the body to be inspected by the stripe pattern projecting means M1 by Fourier transformation. A filter means M3 removes the component of the image corresponding to the basic stripe pattern projected by the stripe pattern projecting means M1 from the component of the Fourier-transformed image. A smoothness deciding means M4 detects the quantities of light of the images before and after the filter means M3 and decides the smoothness of the film of the body to be inspected according to the detected quantities of light. Thus, the distortion and disorder of the image of the light-shape pattern on the surface of the body to be inspected to decide the film smoothness of the object body without contacting the object body directly.

6. 发明专利

JPH1138123A APPARATUS FOR MEASURING OPTICAL AXIS OF RADAR AND METHOD FOR ADJUSTING OPTICAL AXIS OF RADAR 失效
公开(公告)号：JPH1138123A
公开(公告)日：1999-02-12
申请号：JP19661397
申请日：1997-07-23
申请人： TOYOTA MOTOR CORP
发明人： NAKAO KOICHI , ANDO YOSHIHIRO , YAMAMOTO YOSHIAKI , FUKUI TAKAHIRO
IPC分类号： G01B11/00 , G01S7/48 , H01L31/02
摘要： PROBLEM TO BE SOLVED: To easily measure and adjust a dislocation of the optical axis of laser radar. SOLUTION: A vehicle 10 mounting a laser radar 12 is set on a toe tester 14. While the vehicle 10 is set on the tester 14, a CCD camera 16 is set to a position A near the radar 12 and a light spot is received by means of the camera 16. Then the camera 16 is moved to another position B on a rail 18 and another light spot is received by means of the camera 16. The received two light spots are displayed on a display 22. In this case, the rail 18 is set in the direction of the proper optical axis of the radar 12. Therefore, the optical axis of the radar 12 can be adjusted by adjusting the optical axis of the radar 12 so that the light spot received at the position B may agree with the light sport received at the position A.

7. 发明专利

JPH07218449A METHOD FOR OPTICALLY DETECTING SURFACE DEFECT 失效
公开(公告)号：JPH07218449A
公开(公告)日：1995-08-18
申请号：JP1282294
申请日：1994-02-04
申请人： TOYOTA MOTOR CORP , HAMAMATSU PHOTONICS KK
发明人： FUKUI TAKAHIRO , ICHIE KOJI
IPC分类号： G01B11/30 , G01N21/88 , G06T1/00 , G06T7/00
摘要： PURPOSE:To detect the surface defect of a sample with high accuracy without dispersion by using an optical surface defect detecting method by which the surface defect, such as the scratch, etc., of the sample is optically detected. CONSTITUTION:By irradiating the surfaces of a sample 19 to be inspected and reference sample 21 with an irradiating laser beam 13, a first speckle pattern before displacement is obtained with an ITV camera 22 and, by irradiating the surfaces with the laser beam 13 after the surfaces are heated and vibrated by expansion by irradiating the surfaces with a pulse-like heating laser beam 13, a second speckle pattern after displacement is obtained with the camera 22. Then a picture processor 23 obtains speckle interference fringes from the first and second speckle patterns and discriminates the presence/absence of a surface defect from the shape of the interference fringes.

8. 发明专利

JPH02228542A AUTOMATIC MAGNETIC PARTICLE INSPECTION DEVICE 失效
公开(公告)号：JPH02228542A
公开(公告)日：1990-09-11
申请号：JP4904489
申请日：1989-03-01
申请人： TOYOTA MOTOR CORP
发明人： FUKUI TAKAHIRO , FUJIMORI KAZUO
IPC分类号： G01N21/91 , G01N27/84
摘要： PURPOSE:To always enable automatic judgment of an object to be inspected accurately by arranging a brightness distribution generating means, a differentiation means and a binarizing means. CONSTITUTION:An object W to be inspected having a magnetic powder liquid adhering thereto is taken with a TV camera C and after digitized to a brightness data per pixel, it undergoes a contour accentuation processing by a contour accentuating means BD. Then, an image data thus processed is sent to a brightness distribution generating means M1 and a brightness signal per pixel is rearranged by a brightness to generate a frequency per brightness. Then, in a differentiation means M2, a data of distribution of number of pixels per brightness undergoes a differential computation by brightness to determine a differentiation brightness distribution. Then, a binarizing means M3 determines a threshold according to a rule predetermined from this differentiation brightness distribution to binarize the image data from the means BD by the threshold thus obtained. This enables the obtaining of a binary image of a defect alone extracted thereby achieving automatic judgment of the object W to be inspected accurately.

9. 发明专利

JP2000111490A DETECTION APPARATUS FOR COATING FACE 失效
公开(公告)号：JP2000111490A
公开(公告)日：2000-04-21
申请号：JP28299898
申请日：1998-10-05
申请人： TOYOTA MOTOR CORP
发明人： FUKUI TAKAHIRO
IPC分类号： G01B11/30 , G01N21/88 , G01N21/94 , G01N21/95
摘要： PROBLEM TO BE SOLVED: To obtain a detection apparatus which prevents a visual field from being changed due to the distance between a face to be detected and a camera and which evaluates the finished state, especially the expulsion and surface flash feeling, of a coating face. SOLUTION: In a photographing part 30, a light source 36 by which a face 14, to be inspected, on a vehicle is irradiated with striped-pattern light with repeating light and shade is installed, and a semitransparent mirror 38 which reflects projected light 40 from the light source 38 so as to be projected on the face 14 to be inspected and which transmits reflected light 42 from the face 14 to be inspected is installed. In addition, an optical means which is installed between a camera 18 and the face 14 to be inspected and by which only beams of light 42' parallel to the optical axis 44 of the camera 18 out of beams of reflected light 42 are image-formed is provided. The optical means is provided with a telecentric lens by which the beams of light parallel to the optical axis 44 out of the beams of reflected light from the face 14 to be inspected are image-formed. Thereby, even when the distance between the camera 18 and the face 14 to be inspected is changed a little, an expulsion and surface flash feeling can be measured stably.

10. 发明专利

JPH10290389A MULTI-FOCUS IMAGE FORMATION METHOD AND IMAGE FORMATION DEVICE 失效
公开(公告)号：JPH10290389A
公开(公告)日：1998-10-27
申请号：JP9866897
申请日：1997-04-16
申请人： TOYOTA MOTOR CORP
发明人： SUZU MASAHARU , FUKUI TAKAHIRO , MIWATA YASUHIKO , OKOCHI TEIICHI
IPC分类号： H04N5/232
摘要： PROBLEM TO BE SOLVED: To provide multi-focus images usable for image analysis by obtaining the plural images in the same photographing range focused at successively different image depth, extracting focused partial images from the respective images and synthesizing the extracted partial images. SOLUTION: By the lens driving part 22 of a camera 12, a focus position is set at the successively different image depth while photographing the images. The deviation of a center position at a set focus position which is the intrinsic property of a lens 16 and the data of affine correction by an image formation position are prepared beforehand. The driving state of the lens driving part 22 and the images recorded in a CCD image pickup part 20 are transferred to a processing main body part 26 in real time, and at the time of matching the plural focus positions set beforehand, the position data and partially focused image data are successively recorded. The processing main body part 26 executes centering correction and the affine correction to the recorded data, performs layer synthesis and obtains the multi-focus images.

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