Hongwei Shi Phones & Addresses

  • Seaford, NY
  • Brooklyn, NY
  • Flushing, NY


Us Patents

User-Enclosed Region Extraction From Scanned Document Images

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US Patent:
6351559, Feb 26, 2002
Dec 22, 1998
Appl. No.:
Jiangying Zhou - Columbia SC
Hongwei Shi - Elmhurst NY
Matsushita Electric Corporation of America - Secaucus NY
International Classification:
G06K 934
US Classification:
382175, 382306, 382203
In accordance with the teachings of the present invention, a user-enclosed region extraction device allows users to store, in a digital format, only selected portions of a document image. The user can enclose any text or printed material within a user drawn mark. A connected component analyzer analyzes the document in a bitmap format which allows the device to detect potential user-enclosed regions regardless of the content of the document image. A bi-connected component module allows the user to enclose a region with a mark that can be of any shape. The user drawn enclosure can cross lines of text or graphics on the document paper. A detection analyses filter uses a number of heuristics to eliminate small characters and graphics that may resemble a user drawn mark. The user can save space on the computer storage medium by extracting the user-enclosed region from the document image using a extraction module.
Hongwei H Shi from Seaford, NY, age ~51 Get Report