Method of handling complex variants of words through prefix-tree based decoding for Devanagiri OCR
US9262699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Jun 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/293
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic device and method identify a block of text in a portion of an image of real world captured by a camera of a mobile device, slice sub-blocks from the block and identify characters in the sub-blocks that form a first sequence to a predetermined set of sequences to identify a second sequence therein. The second sequence may be identified as recognized (as a modifier-absent word) when not associated with additional information. When the second sequence is associated with additional information, a check is made on pixels in the image, based on a test specified in the additional information. When the test is satisfied, a copy of the second sequence in combination with the modifier is identified as recognized (as a modifier-present word). Storage and use of modifier information in addition to a set of sequences of characters enables recognition of words with or without modifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.