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31. 发明专利

JPS5543638A CHARACTER REGION DECIDING SYSTEM 失效
公开(公告)号：JPS5543638A
公开(公告)日：1980-03-27
申请号：JP11596478
申请日：1978-09-22
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： NOSE ISAMU , KUROE SHIGERU , YAMASHITA YOSHIYUKI , KAWATANI TAKAHIKO
IPC分类号： G06K9/34
摘要： PURPOSE:To secure decision of the character region by deciding the correcting write of the tentative standard signal based on the positional relation between the tentative standard signal and the region candidate row as well as its differential component. CONSTITUTION:Inspective standard signal S3 plus tentative standard signals S4A1 and S4A2 are set up based on end I of the paper, and then inspection region S6 is decided enough to give correction to the error component of the character written outside the character frame and caused by the expansion and contraction of the paper centering on the center of S3. The two rows apart by one character from the ends of inspection regions S6A and S6B are viewed at one time. And in case even one set of combination in which the two raws become the white rows simultaneously may exist, the separation of the characters there is decided. And thus region candidate raw signals S7A1 and S7A2 which are closest to S4A1 and S4A2 in the above decision are set as the front and rear end parts each of the 1-character region. And then character region S7A is decided by the timing of sampling signal S1.

32. 发明专利

JPH0426511B2 失效
公开(公告)号：JPH0426511B2
公开(公告)日：1992-05-07
申请号：JP24233085
申请日：1985-10-29
申请人： OKI ELECTRIC IND CO LTD
发明人： KUROE SHIGERU , NAKAJIMA KENGO
IPC分类号： G06T7/60 , G06K9/46

33. 发明专利

JPH0375883A SMOOTHING DEVICE FOR PICTURE 失效
公开(公告)号：JPH0375883A
公开(公告)日：1991-03-29
申请号：JP21072089
申请日：1989-08-17
申请人： OKI ELECTRIC IND CO LTD
发明人： KAMEI YOKO , KUROE SHIGERU
IPC分类号： G06T5/20
摘要： PURPOSE:To execute highly reliable smoothing by obtaining first the histogram of a density value in a local area, and making the density value processed by non-linear processing corresponding to the frequency of this histogram the output density value of the central position of the local area. CONSTITUTION:This system consists of a multi-level picture 11 inputted for smoothing, an nXn-local area read-out circuit 12, a histogram generation circuit 13, a weighted mean circuit 14, and a smoothed multi-level picture. Then, the density value of the local area of size mXn smaller than the multi-level picture of the size MXN is read out from the multi-level picture of the size MXN, and thus, the density histogram of optical density value width is obtained. After the density histogram is obtained, weight corresponding to the value of the historgram is added to the density value read out from the local area, and the mean value of these is calculated, and this mean value of the density is made the output density value of the central position of the local area, and it becomes the element of the smoothed multi-level picture. Thus, the highly reliable smoothing of the multi-level picture is executed.

34. 发明专利

JPH0250274A STEREO PICTURE CORRESPONDING DEVICE 失效
公开(公告)号：JPH0250274A
公开(公告)日：1990-02-20
申请号：JP20015888
申请日：1988-08-12
申请人： OKI ELECTRIC IND CO LTD
发明人： YAMADA YOICHI , KUROE SHIGERU
IPC分类号： G06T1/00 , G06T7/00
摘要： PURPOSE:To remove an adverse influence due to the dispersion of partial brightness in right and left picture data and executing the corresponding of a stereo picture with high accuracy by detecting an area, which is different from the result of a closed area, from a processed result with the first corresponding processing and executing the corresponding processing again concerning this area. CONSTITUTION:The corresponding is executed by a first corresponding means 11 concerning the whole area of the right and left picture data and the area, which is different from the result of the closed area in a corresponding result, is detected by a re-corresponding area detecting means 12 and outputted as a re-corresponding area. The corresponding is executed to the re-corresponding areas in the right and left picture data by a second corresponding means 13 and further, the final corresponding result is outputted from the corresponding result by the first corresponding means 11 and the corresponding result of the second corresponding means 13 by a corresponding result output means 14. Thus, the adverse influence due to the dispersion of the partial brightness in the picture data can be removed.

35. 发明专利

JPS6423472A TRACK SEEK DEVICE 失效
公开(公告)号：JPS6423472A
公开(公告)日：1989-01-26
申请号：JP18039587
申请日：1987-07-20
申请人： OKI ELECTRIC IND CO LTD
发明人： KUROE SHIGERU , TAKEDA TAKAYUKI , SATO MASAYASU
IPC分类号： G11B21/08 , G11B7/085
摘要： PURPOSE:To attain also high speed seeking by using a pseudo track cross signal at high speed and a corrected cross signal at low speed operation in response to the detection of an identifier part of a track so as to detect the pickup moving speed and to apply the speed control. CONSTITUTION:A control signal S101c from a processor goes to H at the low speed moving in response to the pickup present speed from a present speed generator 150 and a gate output from a gate 148 of a signal processing circuit 140 is not generated. An LPF141 is set by a signal S101c at the same time, a high frequency component of a difference signal S31 at track crossing by a pickup from an optical 2-split detector is eliminated, a track identification part cross signal in pit form is detected excellently, the pickup moving present speed from the present speed generator 150 is detected to apply speed control seeking. On the other hand, a sum signal S30 via a gate 148 and a identifier part by a monostable multivibrator are outputted through a switching circuit 144 by using the signal at crossing at the high speed, a pseudo track cross signal formed by a correction counter 154 is used to attain high speed seeking without any hindrance.

36. 发明专利

JPS63293768A DATA DEMODULATING CIRCUIT 失效
公开(公告)号：JPS63293768A
公开(公告)日：1988-11-30
申请号：JP13037287
申请日：1987-05-27
申请人： OKI ELECTRIC IND CO LTD
发明人： KUROE SHIGERU , NOSE ISAMU
IPC分类号： G11B20/10
摘要： PURPOSE:To obtain correct demodulation data by determining a resynchronism mark detecting range on the basis of a byte position and a bit position and correcting the bit position every detection of the mark. CONSTITUTION:A pattern deciding circuit 62 is constituted of a synchronism detecting circuit 62a for forming a synchronism detecting signal SYN and a resynchronism mark detecting circuit 62b having a function as a bit position correcting means, detecting a resynchronism mark only the period that a resynchronism mark detection enable signal EN is logic '1' and outputting a resynchronism mark detecting signal RESYN. A resynchronism control circuit 70 is a circuit having a function as a resynchronism mark detecting range determining means. Namely, the determining means determines the resynchronism mark detecting range on the basis of the byte position and the bit position and a bit position correcting means corrects only the bit position and executes no operation to the byte position. Consequently, the detection of the resynchronism mark can be accurately executed in a correct position and demodulation data with high accuracy can be obtained.

37. 发明专利

JPS6318472A THREE-DIMENSIONAL POSITION MEASURING INSTRUMENT 失效
公开(公告)号：JPS6318472A
公开(公告)日：1988-01-26
申请号：JP16173986
申请日：1986-07-09
申请人： OKI ELECTRIC IND CO LTD
发明人： NAKAJIMA KENGO , KUROE SHIGERU
IPC分类号： G06T1/00
摘要： PURPOSE:To accurately calculate a distance up to an object even when regional division is not efficiently executed due to the quality of an image by converting an original picture obtained by a moving image pickup part into an edge image and forming a resynthesized image including parallax change information. CONSTITUTION:Under control by a control circuit 15, the image pickup part 11 is moved to the right every fixed distance by a moving mechanism 12 and plural different original pictures are stored in a storage circuit 14. Then, the original pictures in the circuit 14 are converted into edge images by a differential circuit 18 on the basis of brightness information and the edge images are stored in the circuit 14. An image synthesizing part 19 arrays the image data corresponding to the same line out of the edge images in the line direction in the image pickup order to form a two-dimensional synthesized image. Consequently, parallax information to be an edge straight line having a different inclination in accordance with a distance from a camera is obtained, a straight line detecting part 20 extracts the edge straight line from the synthesized image and an arithmetic part 21 calculates a distance up to a point on the edge of the object. Consequently, the three-dimensional position of the edge of the object can be measured.

38. 发明专利

JPS62106589A METHOD FOR DETECTING EDGE POSITION OF PATTERN 失效
公开(公告)号：JPS62106589A
公开(公告)日：1987-05-18
申请号：JP24690985
申请日：1985-11-02
申请人： OKI ELECTRIC IND CO LTD
发明人： KUROE SHIGERU , NAKAJIMA KENGO
IPC分类号： G06Q50/24 , G06K9/36 , G06Q50/22 , G06T3/00 , G06T7/60 , G16H10/60
摘要： PURPOSE:To obtain the edge position of a pattern with high stability by replacing the differential value used for calculation of the centroid with the positive difference value obtained by subtracting the prescribed threshold value from said differential value when the position of the centroid obtained by means of the differential value of density showing a level larger than the threshold value. CONSTITUTION:The maximum differential value is obtained from the differential value of plural noticed picture elements and the part having a big change of density in a picture of variable densities is coincident with the area near the pattern edge. Thus this area near the pattern edge can be specified. Then the threshold value that decides an objective area where the calculation for centroid is carried out to obtain the edge position from the maximum differential value is obtained automatically. While the differential value used for calculation of centroid is defined as the difference value {d(Xi)-Tt} obtained by subtracting the threshold value from said differential value. Thus the objective area for calculation of centroid is equal to a part 21 or parts 21 and 23. Therefore the differential value XP is replaced with the difference value {d(Xp)-Tt} which is smaller than the original differential value. Thus it is possible to reduce the effect of said differential value on the result of the calculation of centroid.

39. 发明专利

JPS62102376A EDGE POSITION DETECTING METHOD FOR PATTERN 失效
公开(公告)号：JPS62102376A
公开(公告)日：1987-05-12
申请号：JP24233085
申请日：1985-10-29
申请人： OKI ELECTRIC IND CO LTD
发明人： KUROE SHIGERU , NAKAJIMA KENGO
IPC分类号： G06T7/60 , G06K9/46
摘要： PURPOSE:To find an edge position stably by subtracting a predetermined threshold value from plural density difference values nearby the edge and finding different values, finding the position of the center of gravity from positive values among those difference values, and using it as the edge position. CONSTITUTION:Light information on an image pattern is converted by an image pickup device 31 into an image signal, which is digitized by an A/D converting circuit 33 and stored temporarily in an image memory 35, and then differentiated by a differentiating circuit 39 and supplied to an edge position detecting circuit 14. This edge position detecting circuit 41 subtracts the predetermined threshold value from plural density differential values nearby the edge to find difference values, finds the position of the center of gravity from positive difference values among those found difference values, and uses the position of the center of gravity as the edge position of the image pattern.

40. 发明专利

JPS6295671A 3-DIMENSIONAL POSITION MEASURING INSTRUMENT 失效
公开(公告)号：JPS6295671A
公开(公告)日：1987-05-02
申请号：JP23497785
申请日：1985-10-21
申请人： OKI ELECTRIC IND CO LTD
发明人： NAKAJIMA KENGO , KUROE SHIGERU
IPC分类号： G06T1/00
摘要： PURPOSE:To extract accurately the feature points despite the inferior image pickup conditions and the unsatisfactory result of division, by calculating the feature quantity at an area near the boundary of areas based on the result obtained by dividing an original pictures into areas and securing the correspondence among those feature points according to said feature quantity. CONSTITUTION:If a sufficiently high contrast is not obtained between areas adjacent to each other, the separation is impossible between these areas and the same area number is given mistakenly to the corresponding areas. Here a correcting circuit 20 is provided to secure a function to calculate the average brightness among those areas obtained by an area dividing circuit 18 and a function to decide the correspondence among feature points. Thus it is possible to calculate accurately a 3-dimensional distance despite the inferior image pickup conditions and the unsatisfactory contrast.

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