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Method and apparatus for recognizing a character

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06K-009/72
출원번호 US-0816182 (1997-03-12)
우선권정보 JP0331516 (1992-12-11)
발명자 / 주소
  • Yuge Ryoichi,JPX
출원인 / 주소
  • Matsushita Electric Industrial Co., Ltd., JPX
인용정보 피인용 횟수 : 61  인용 특허 : 16

초록

A document with a plurality of characters is read, a binary document image is produced, and a character rectangle circumscribed about a mass of black pixels connected with each other (called a black-pixel mass) is produced for each black-pixel mass. The character rectangles are classified into a plu

대표청구항

[What is claimed is:] [1.]character rectangle producing means for extracting a plurality of black-pixel masses, respectively composed of a plurality of black pixels connected with each other, from an image of the document indicated by a plurality of black pixels and a plurality of white pixels and p

이 특허에 인용된 특허 (16)

  1. Murai Yasumasa (Tokyo JPX) Yamauchi Toshifumi (Tokyo JPX), Accurate recognition of input patterns.
  2. Smith Raymond W. (Bristol GB2) Robson Christopher J. (Bristol GB2), Apparatus and method for use in image processing.
  3. Mori Kazuhiro (Yokohama JPX), Character recognition apparatus.
  4. Yamagata Hideaki (Yokohama JPX) Kojima Keiji (Kawasaki JPX) Hashimoto Tatsuhiko (Sagamihara JPX), Character recognition post-processing method.
  5. Abe Keiko (Kanagawa JPX), Character recognition system.
  6. Blum Eric (Wynnewood PA) Pierce Wilbur (Bryn Mawr PA), Cryptographic analysis system.
  7. Tanaka Yuzuru (Sapporo JPX) Takahashi Kinya (Yokohama JPX), Image processing apparatus.
  8. White Mark D. (Sewell NJ) Law Wai T. (Sewell NJ), Inhibition of interfering endogenous enzyme activity in assays of biological fluids.
  9. Cass Todd A. (Cambridge MA) Halvorsen Per-Kristian (Los Altos CA) Huttenlocher Daniel P. (Ithaca NY) Kaplan Ronald M. (Palo Alto CA) Withgott M. Margaret (Los Altos CA), Method and apparatus for determining the frequency of words in a document without document image decoding.
  10. Clifford Daniel (Stanford CA), Method and apparatus for segmenting and classifying unconstrained handwritten characters.
  11. Bernzott Philip (Oakland CA) Dilworth John (Oakland CA) George David (Oakland CA) Higgins Bryan (Berkeley CA) Knight Jeremy (Berkeley CA), Optical character recognition method and apparatus.
  12. Kurosawa Yoshiaki (Yokohama JPX), Pattern recognition apparatus.
  13. Fenwick David (Santa Cruz CA), Pattern recognition system having inter-pattern spacing correction.
  14. Abdelazim Hazem Y. (Cairo EGX), Recognition of characters in cursive script.
  15. Mahajan Milind Vasudeo (Redmond WA) Pardikar Shishir (Redmond WA), Recognition of handwritten words.
  16. Fujisawa Hiromichi (Tokorozawa JPX) Nakano Yasuaki (Hino JPX) Komatsu Hitoshi (Kanagawa JPX) Kadota Shozo (Kanagawa JPX) Kurino Kiyomichi (Odawara JPX), System and method for segmentation and recognition of patterns.

이 특허를 인용한 특허 (61)

  1. Hoffberg, Steven M.; Hoffberg-Borghesani, Linda I., Adaptive pattern recognition based controller apparatus and method and human-interface therefore.
  2. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Adding information or functionality to a rendered document via association with an electronic counterpart.
  3. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Adding value to a rendered document.
  4. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Aggregate analysis of text captures performed by multiple users from rendered documents.
  5. King, Martin; Grover, Dale; Kushler, Clifford; Stafford-Fraser, James; Mannby, Claes-Fredrik, Archive of text captures from rendered documents.
  6. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Association of a portable scanner with input/output and storage devices.
  7. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Association of a portable scanner with input/output and storage devices.
  8. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Automatic modification of web pages.
  9. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Automatic modification of web pages.
  10. King, Martin T.; Stephens, Redwood; Mannby, Claes-Fredrik; Peterson, Jesse; Sanvitale, Mark; Smith, Michael J., Automatically capturing information, such as capturing information using a document-aware device.
  11. King, Martin T.; Stephens, Redwood; Mannby, Claes-Fredrik; Peterson, Jesse; Sanvitale, Mark; Smith, Michael J.; Daley-Watson, Christopher J., Automatically providing content associated with captured information, such as information captured in real-time.
  12. King, Martin Towle; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Quentin, Capturing text from rendered documents using supplement information.
  13. King, Martin Towle; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Quentin, Capturing text from rendered documents using supplemental information.
  14. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Contextual dynamic advertising based upon captured rendered text.
  15. King, Martin Towle; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Quentin, Data capture from rendered documents using handheld device.
  16. King, Martin Towle; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Quentin, Data capture from rendered documents using handheld device.
  17. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Determining actions involving captured information and electronic content associated with rendered documents.
  18. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Document enhancement system and method.
  19. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Establishing an interactive environment for rendered documents.
  20. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Handheld device for capturing text from both a document printed on paper and a document displayed on a dynamic display device.
  21. Khushboo, Choudhary; Kumar, Shiva C T; Sundararajan, Mukundan, Handwritten character recognition based on frequency variations in characters.
  22. Khushboo, Choudhary; Kumar, Shiva C T; Sundararajan, Mukundan, Handwritten character recognition based on frequency variations in characters.
  23. Khushboo, Choudhary; Kumar, Shiva C T; Sundararajan, Mukundan, Handwritten character recognition based on frequency variations in characters.
  24. King, Martin T.; Stephens, Redwood; Mannby, Claes-Fredrik; Peterson, Jesse; Sanvitale, Mark; Smith, Michael J., Identifying a document by performing spectral analysis on the contents of the document.
  25. Funahashi, Takeshi, Image confirming method.
  26. Funahashi,Takeshi, Image confirming method.
  27. Ohk, Hyung-soo, Image forming apparatus, method for processing image thereof and non-transitory computer-readable recording medium.
  28. Kimura, Shunichi; So, Ikken; Sekino, Masanori; Koshi, Yutaka, Image processing apparatus, image processing method and computer-readable medium.
  29. Okubo,Nobuyuki, Image reading apparatus.
  30. Hashimoto,Yoshihito; Ikeda,Kazutaka, Image recognition method and apparatus for the same method.
  31. King, Martin T.; Mannby, Claes-Fredrik; Smith, Michael J., Image search using text-based elements within the contents of images.
  32. Hoffberg, Steven M.; Hoffberg-Borghesani, Linda I., Internet appliance system and method.
  33. Cortopassi, Michael; Endejan, Edward, Method and apparatus for using pressure information for improved computer controlled handwriting recognition data entry and user authentication.
  34. Cortopassi,Michael; Endejan,Edward, Method and apparatus for using pressure information for improved computer controlled handwriting recognition, data entry and user authentication.
  35. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Method and system for character recognition.
  36. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Method and system for character recognition.
  37. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Quentin, Method and system for character recognition.
  38. Nakase, Risa; Aoki, Takeshi; Suzuki, Akira; Kato, Yoshihiro, Method for forming film by plasma.
  39. Longacre, Jr., Andrew, Method for omnidirectional processing of 2D images including recognizable characters.
  40. Longacre, Jr., Andrew, Method for omnidirectional processing of 2D images including recognizable characters.
  41. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Methods and systems for initiating application processes by data capture from rendered documents.
  42. James R. Reda ; Jens H. Jorgensen ; Jeffrey P. Werlin, Optical object recognition method and system.
  43. King, Martin T.; Mannby, Claes-Fredrik; Arends, Thomas C.; Bajorins, David P.; Fox, Daniel C., Optical scanners, such as hand-held optical scanners.
  44. King, Martin T.; Stephens, Redwood; Mannby, Claes-Fredrik; Peterson, Jesse; Sanvitale, Mark; Smith, Michael J., Performing actions based on capturing information from rendered documents, such as documents under copyright.
  45. King, Martin T.; Stephens, Redwood; Mannby, Claes-Fredrik; Peterson, Jesse; Sanvitale, Mark; Smith, Michael J., Performing actions based on capturing information from rendered documents, such as documents under copyright.
  46. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Processing techniques for text capture from a rendered document.
  47. King, Martin Towle; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Quentin, Processing techniques for text capture from a rendered document.
  48. King, Martin T.; Kushler, Clifford A.; Stafford-Fraser, James Q.; Grover, Dale L., Processing techniques for visual capture data from a rendered document.
  49. Fujino, Akio; Nakade, Yoitsu; Ozawa, Hitoshi; Matsushita, Tsutomu; Kita, Mariko, Proofreader ability managing method and system.
  50. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Publishing techniques for adding value to a rendered document.
  51. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Search engines and systems with handheld document data capture devices.
  52. King, Martin Towle; Stafford-Fraser, James Quentin; Kushler, Clifford A.; Grover, Dale L., System and method for information gathering utilizing form identifiers.
  53. Shen, Wei; Liu, Jia Bing; Guo, Xiao Wei; Wang, Si Ping; Ai, Feng; Zhong, Li Duo, System and method of transmitting electronic voucher through short message.
  54. Simske,Steven J., Systems and methods for processing text-based electronic documents.
  55. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Triggering actions in response to optically or acoustically capturing keywords from a rendered document.
  56. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Triggering actions in response to optically or acoustically capturing keywords from a rendered document.
  57. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Triggering actions in response to optically or acoustically capturing keywords from a rendered document.
  58. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Triggering actions in response to optically or acoustically capturing keywords from a rendered document.
  59. King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-Fraser, James Q., Triggering actions in response to optically or acoustically capturing keywords from a rendered document.
  60. King, Martin T.; Mannby, Claes-Fredrik; Valenti, William, Using gestalt information to identify locations in printed information.
  61. Huapaya, Luis M.; Geidl, Erik M.; Karlov, Donald D.; Pettiross, Jeffrey W.; Wick, Thomas R., Write anywhere tool.
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