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Content Provider | IET Digital Library |
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Author | Rajesh, Bulla Javed, Mohammed Nagabhushan, P. |
Abstract | JPEG is one of the popular and efficient compression algorithms supported in the consumer electronics world. Excessive usage of mobile phones and e-governance applications have all resulted in a huge collection of JPEG compressed document images. The major challenge with these images is that its processing becomes expensive as it requires repeated decompression and recompression operations. Recently, it has been proved that developing algorithms to operate directly on the compressed data is one of the solutions in overcoming the above issue. This research study investigates a novel algorithm for segmentation of text-lines and words directly from JPEG compressed handwritten document images. Segmenting a handwritten document is challenging due to the presence of uneven spacing, variable font sizes, overlapping and touching components, and it becomes much more challenging if it is to be done directly in the compressed image. The proposed technique virtually fixes a vertical stripe at the beginning of the document to detect starting points of text-lines. Then a moving window-based space penetration algorithm is used for tracing the exact line boundary between two text-lines, resolving the issues of space and font variations, touching and overlapping components. Subsequently, a word boundary tracing algorithm is used to segment words. |
Starting Page | 1909 |
Ending Page | 1919 |
Page Count | 11 |
ISSN | 17519659 |
Volume Number | 14 |
e-ISSN | 17519667 |
Issue Number | Issue 9, Jul (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-ipr/14/9 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2019.1437 |
Journal | IET Image Processing |
Publisher Date | 2020-04-02 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Compressed Data Compressed Domains Compressed Image Computer Vision And Image Processing Technique Consumer Electronics World Data Compression Decompression Digital Libraries Document Image Processing Document Processing Technique Efficient Compression Algorithm Exact Line Boundary Excessive Usage Feature Extraction Handwritten Document Image Image And Video Coding Image Coding Image Recognition Image Segmentation Joint Photographic Experts Group JPEG Mobile Phones Moving Window-based Space Penetration Algorithm Optical, Image And Video Signal Processing Overlapping Component Popular Compression Algorithm Recompression Operation Segment Words Spatial Domain Text Detection Text-line Touching Component Word Boundary Tracing Algorithm Word Segments |
Content Type | Text |
Resource Type | Article |
Subject | Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software |
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