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1. 发明专利

JP2000011177A METHOD FOR RECOGNIZING GRAPHIC SHAPE AND DEVICE THEREFOR 失效
公开(公告)号：JP2000011177A
公开(公告)日：2000-01-14
申请号：JP17864498
申请日：1998-06-25
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SUZUKI AKIRA , NAKAMURA OSAMU , OGURA KENJI , TACHIBANA MIYUKI
IPC分类号： G06T7/60 , G06T7/00 , G06T9/20
摘要： PROBLEM TO BE SOLVED: To quickly correct the three-dimensional distortion or in-plane graphic rotation of a binary image in which the three-dimensional distortion or in-plane rotating graphic are recorded, and to restore the original graphic image. SOLUTION: This graphic shape recognizing device is provided with an angular difference calculating means 1 for calculating angular differences for the whole outline points of a graphic, an angular candidate area detecting means 2 for detecting angular candidate areas by using the calculated angular differences, an angular difference mean value calculating means 3 for calculating the mean value of the angular differences for each angular candidate area, an angular difference total value calculating means 4 for calculating the total values of the angular differences for each angular candidate area, an angular candidate area judging means 5 for judging whether or not the total value and mean value of the angular differences are beyond each threshold value for each angular candidate area, and certifying the angular candidate area as an angular area when both the values are beyond the threshold value, and a polygon judging means 5 for calculating the rate of the sum of the total values of the angular differences of the area certified as the angular area to the total values of the angular differences for the whole areas, judging whether or not the rate is beyond a designated value, and judging the graphic as a polygon when the rate is beyond the designated value.

2. 发明专利

JPH11306350A METHOD AND DEVICE FOR PICTURE PROCESSING 失效
公开(公告)号：JPH11306350A
公开(公告)日：1999-11-05
申请号：JP10747998
申请日：1998-04-17
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SUZUKI AKIRA , NAKAMURA OSAMU , OGURA KENJI
IPC分类号： H04N1/409 , G06T7/00
摘要： PROBLEM TO BE SOLVED: To reduce the burden on operation of a system making it possible to calculate features of an object by simply presenting a sample. SOLUTION: This picture processor is provided with a camera 1 which photographs a picture including the object, a learning character region extraction means 2 which extracts an object region for learning from this picture including the object, an object feature extraction means 3 which extracts features of the object from the extracted object area for learning, an object feature storage means 4 where there extracted features of the object are stored, and a region search and extraction means 5 which uses extracted features of the object and the picture including the object photographed by the camera 1 to search and extract the region of the object in the scene picture.

3. 发明专利

JPH11305910A METHOD AND DEVICE FOR SELECTING MENU 失效
公开(公告)号：JPH11305910A
公开(公告)日：1999-11-05
申请号：JP10748198
申请日：1998-04-17
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SUZUKI AKIRA , NAKAMURA OSAMU , OGURA KENJI
IPC分类号： G06F3/048 , G06F3/00 , G06F3/01 , G06F3/03 , G06F3/041 , G06F3/042
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for selecting menu which can be easily used even for a person unskilled in OA equipment, can select the contents of a menu even without being skilled in the handling of a system and does not generate any mechanical contact between a human being and the system. SOLUTION: Concerning this menu selector for selecting a menu by showing the items of the menu described as character strings on a character plate from a user through any indicator, this device is provided with an image input means 1 for photographing the images of the character plate and the indicator through a camera, a position extracting means for extracting the contents of menu items written on the character plate in the format of character strings and the position information as images, an instructed point coordinate extracting means for extracting the identification of operation instructed by the indicator and the coordinate of an instructed point on the character plate, and a means for calculating an instructed item by collating that extracted coordinate with the record of the position information as the images of the respective menu items, and executing a function corresponding to that item.

4. 发明专利

JPH11304480A METHOD AND DEVICE FOR MEASURING AZIMUTH OF SUBJECT 失效
公开(公告)号：JPH11304480A
公开(公告)日：1999-11-05
申请号：JP10631998
申请日：1998-04-16
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SUZUKI AKIRA , NAKAMURA OSAMU , OGURA KENJI
IPC分类号： G01C11/00
摘要： PROBLEM TO BE SOLVED: To measure the absolute azimuth of a subject as seen from a camera, from an image taken with the camera and the azimuth of the optical axis of the camera. SOLUTION: This device has an object area image retrieval/extraction means 1 for retrieving and extracting an image of the area of a subject from an image taken with a camera, a center position calculation means 2 for calculating the center coordinates of the extracted image of the area of the subject, a relative azimuth angle calculation means 3 for calculating the relative azimuth angle of the subject with respect to the optical axis of the camera from the calculated center coordinates (center position information) of the image of the area, a camera optical axis azimuth angle detection means 4 for detecting the azimuth angle of the optical axis of the camera with respect to a direction which serves as the reference of azimuth, and a data integration means 5 for integrating the detection result with the relative azimuth angle of the subject with respect to the optical axis of the camera.

5. 发明专利

JPH11224309A CHARACTER RECOGNITION METHOD AND DEVICE 失效
公开(公告)号：JPH11224309A
公开(公告)日：1999-08-17
申请号：JP2690798
申请日：1998-02-09
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KIMURA YOSHIMASA , MORI MINORU , AKIYAMA TERUO , WAKAHARA TORU , MIYAMOTO NOBUO , OGURA KENJI
IPC分类号： G06K9/62
摘要： PROBLEM TO BE SOLVED: To perform classification at a high speed while keeping a broad classification rate at a fixed value by successively changing an initial value so as to minimize an operation amount required for hierarchical broad classification. SOLUTION: Relating to a broad classification part 4, a first stage classification circuit 41 calculates a distance between the n1 pieces (n0 >n1 ) of features specified in a broad classification constitution decision part 9 in the n0 pieces of the features of an input character pattern obtained from a feature extraction part 3 and the n1 pieces of the features of respective categories stored in a broad classification dictionary 5 and narrows the categories to c. pieces in the ascending order of the distance. A second stage classification circuit 42 calculates the distance between the n2 pieces (n0 >n2 >n1 ) pieces of the features specified in the broad classification constitution decision part 9 from the n0 pieces of the features and the n2 pieces of the features of the c1 pieces of the categories outputted from the first stage classification circuit 41 and narrows the categories to c2 pieces (c2

6. 发明专利

JPH11205679A METHOD AND DEVICE FOR DETECTING SUPERIMPOSED CHARACTER IN IMAGE AND RECORD MEDIUM FOR RECORDING THE METHOD 失效
公开(公告)号：JPH11205679A
公开(公告)日：1999-07-30
申请号：JP816098
申请日：1998-01-20
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ARAI HIROYUKI , KUWANO HIDEKATSU , KURAKAKE MASAHARU , OGURA KENJI
IPC分类号： H04N5/278 , G06T7/00 , G06T7/20 , G06T7/40 , G06T7/60
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for detecting superimposed character in an image with which the superimposed characters in an image to be displayed while moving can be exactly detected as one set of character strings at high speed. SOLUTION: A frame image is acquired at a certain time interval from images and a featuring point to appear in a character part as a feature is detected from each frame image. Appearance of superimposed characters is detected from spatial distribution of this featuring point and the moving amount of entire superimposed characters is calculated by collating the detected frame image with the featuring point of a frame image acquired continuously. While using this moving amount, the coordinate value of one image is transformed so as to spatially overlap superimposed characters to be commonly displayed between frame images, then, the featuring points detected in respective images are locally collated, and the value of local deviation at respective character parts of superimposed characters is calculated. The local deviation is corrected by performing suitable geometrical transformation to the image part where the local deviation is detected. Thus, superimposed characters to be commonly displayed between frame images can be exactly made correspondent each other.

7. 发明专利

JPH11203404A METHOD AND DEVICE FOR READING CHARACTER IN VIEW IMAGE AND RECORDING MEDIUM RECORDING THE METHOD 失效
公开(公告)号：JPH11203404A
公开(公告)日：1999-07-30
申请号：JP815998
申请日：1998-01-20
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SUZUKI AKIRA , KOBAYASHI KIMITOMO , NAKAMURA OSAMU , OGURA KENJI
IPC分类号： G06K9/20 , G06K9/32 , H04N5/262 , H04N7/18
摘要： PROBLEM TO BE SOLVED: To provide reading method and device capable of reading characters in a character area which cannot be read due to its too small size at the time of reading characters in a view image, improving reading accuracy and enabling an operator to easily set up the operation sequence of the device. SOLUTION: A camera 4 with controllable sight line direction and angle of view is used and the camera 4 is controlled by using a sight line direction and an angle of view previously set up by an operator. A camera control value calculation means 3 calculates the sight line direction and the angle of view of the camera 4 in order to enlarge the character area to proper size. An overall control means 1 controls the camera 4 by the use of the calculated values. Consequently a character area which can not be read out due to its too small size can be read out. An operation sequence storing table 2 is prepared so that the operator can easily define an operation sequence and store it in the table 2. Since the means 1 controls respective parts according to the operation sequence of the table 2, the device can be easily applied to various application cases.

8. 发明专利

JPH11177899A METHOD AND DEVICE FOR RETRIEVING IMAGE-RELATED INFORMATION 失效
公开(公告)号：JPH11177899A
公开(公告)日：1999-07-02
申请号：JP34013497
申请日：1997-12-10
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ARAI HIROYUKI , KUWANO HIDEKATSU , KURAKAKE MASAHARU , OGURA KENJI
IPC分类号： G06F17/30 , H04N5/44 , H04N5/445 , H04N9/20
摘要： PROBLEM TO BE SOLVED: To make it possible to display a WWW browser on the screen of a TV and to easily acess a WWW by detecting the display of character information from a receiving TV image, storing the text information of recognized character, generating a suitable retrieval key as necessity and inputting the retrieval key to the WWW browser. SOLUTION: A character display detection part 2 detects the display of character information by the character broadcasting of TV images and a character recognition part 3 extracts and recognizes character images and stores the text information of the recognized characters in a recognition result memory 9. The text information and a news data base are accessed, their coincidence is calculated and a keyword appearing in an article having high coincidence with a previously inputted subject is used, so that a wide retrieval result related to provided information can be obtained. A retrieval key generation part 4 generates a retrieval key by the use of the data base 10 and inputs the key to the WWW browser to display a restrieved result on a retrieved result display part 8.

9. 发明专利

JPH11167583A TELOP CHARACTER RECOGNITION METHOD, VIDEO STORAGE DISPLAY DEVICE, TELOP CHARACTER RECOGNITION AND RETRIEVAL TERMINAL AND VIDEO RETRIEVAL TERMINAL 失效
公开(公告)号：JPH11167583A
公开(公告)日：1999-06-22
申请号：JP33445997
申请日：1997-12-04
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KUWANO HIDEKATSU , ARAI HIROYUKI , KURAKAKE MASAHARU , OGURA KENJI , TAKAHATA MINORU
IPC分类号： H04N5/78 , G06F17/30 , G11B27/00 , G11B27/10 , H04N5/76
摘要： PROBLEM TO BE SOLVED: To suppress the useless generation of an index file due to the telop character recognition processing that is carried out in a fixed cycle and to reduce the delay of the telop character display time that is written into a storage medium. SOLUTION: The images are inputted to a video storage medium 2 and a telop character recognition/retrieval terminal 1. The medium 2 stores the images and the ID information obtained when the images are stored in an image storage part 21. The terminal 1 detects a telop character display frame, extracts a telop character area and recognizes the telop characters to store the telop character recognition result and the ID information obtained when the telop characters are displayed in an index file storage part 15 as index files. Then the character code that is inputted by a user via a video retrieval information input/storage part 31 is retrieved out the files stored in the part 15, and the image having the corresponding ID information is extracted from the part 21 and shown at a video display part 33.

10. 发明专利

JPS6048757B2 失效
公开(公告)号：JPS6048757B2
公开(公告)日：1985-10-29
申请号：JP15503680
申请日：1980-11-04
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAWAKUBO HIDEJI , OKADA MAMORU , OGURA KENJI , WAKANA TADASHI
IPC分类号： G06F3/153 , G06T11/00 , G09G1/28 , G09G5/02 , G09G5/36

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