Processor based method for extracting tablets from printed documents
Patent 5956422 Issued on September 21, 1999. Estimated Expiration Date: 
February 21, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 21, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesRectangular pattern recognition apparatus Method and apparatus for recognizing table area formed in binary image of document Apparatus for extracting a text region in a document image Tabular document reader service Character recognition system Document analysis system Method and apparatus for automatic determination of text line, word and character cell spatial features Character recognition system Word spotting in bitmap images using word bounding boxes and hidden Markov models Negotiable instrument InventorAssigneeApplicationNo. 010394 filed on 02/21/1998US Classes:382/181, PATTERN RECOGNITION382/175, Separating document regions using preprinted guides or markings382/193, Counting intersections of scanning lines with pattern382/194, Counting individual pixels or pixel patterns382/197, Directional codes and vectors (e.g., Freeman chains, compasslike codes)382/202, Linear stroke analysis (e.g., limited to straight lines)382/286Measuring image properties (e.g., length, width, or area)ExaminersPrimary: Shalwala, BipinAttorney, Agent or FirmInternational ClassesG06K 009/00G06K 009/34 G06K 009/46 G06K 009/66 AbstractA processor based method for recognizing, capturing and storing tabular data receives digital-computer data representing a document either as a pixel-format document-image, or as formatted text. Within the digital computer, either form of the digital-computer data is processed to locate tabular data present therein. After a table has been located, tabular data is extracted from cells present in either form of the digital-computer data. The extracted tabular data is stored into a database present on the digital computer.Other References
Field of SearchPATTERN RECOGNITIONFor segmenting an image IMAGE SEGMENTATION Using projections (i.e., shadow or profile of characters) Separating document regions using preprinted guides or markings Distinguishing text from other regions Region labeling (e.g., page description language) Measuring image properties (e.g., length, width, or area) Determining the position of an object To position or translate an image Image storage or retrieval Using identification indicia on document Counting intersections of scanning lines with pattern Counting individual pixels or pixel patterns Directional codes and vectors (e.g., Freeman chains, compasslike codes) Pattern boundary and edge measurements Linear stroke analysis (e.g., limited to straight lines) | |
