Designing a Codec System for High Resolution Textual Images Based on Super Resolution

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MORADI SAEID; GRAILU HADI

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Journal Paper

Paper Information

Journal: JOURNAL OF ADVANCED SIGNAL PROCESSING Year:2021 | Volume:5 | Issue:1 (7) Page(s): 65-78

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Information Journal Paper

Title

Designing a Codec System for High Resolution Textual Images Based on Super Resolution

Author(s)

MORADI SAEID | GRAILU HADI | Issue Writer Certificate

Keywords

Textual image compression

JPEG compression

JPEG2000 compression

SPIHT compression

super resolution

optical character recognition

Abstract

In this paper, a CODEC system based on super resolution, is proposed for compression of high resolution textual images. It employs image resizing to decrease image dimensions and consequently, to improve the compression ratio; but at the other hand, it may reduce the image quality. Therefore, the decompression unit employs super resolution to simultaneously increase the reconstructed image dimensions and quality. In the employed interpolation-based super-resolution method, using an efficient textual image matting algorithm, the input low-resolution textual image is decomposed into three layers after which, each layer is enlarged using a particular method. Finally, the enlarged layers are combined to build the high resolution reconstructed textual image. An interesting feature of the proposed method is the ability to use existing compression methods such as JPEG, JPEG2000 and SPIHT. We have employed the aforementioned compression methods in the proposed CODEC system and evaluated the compression results with respect to OCR rate, Mean Opinion Score (MOS), and PSNR measures. Considering the OCR and MOS measures, the proposed method outperformed the others but not so with respect to PSNR.

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APA: Copy

MORADI, SAEID, & GRAILU, HADI. (2021). Designing a Codec System for High Resolution Textual Images Based on Super Resolution. JOURNAL OF ADVANCED SIGNAL PROCESSING, 5(1 (7) ), 65-78. SID. https://sid.ir/paper/955347/en

Vancouver: Copy

MORADI SAEID, GRAILU HADI. Designing a Codec System for High Resolution Textual Images Based on Super Resolution. JOURNAL OF ADVANCED SIGNAL PROCESSING[Internet]. 2021;5(1 (7) ):65-78. Available from: https://sid.ir/paper/955347/en

IEEE: Copy

SAEID MORADI, and HADI GRAILU, “Designing a Codec System for High Resolution Textual Images Based on Super Resolution,” JOURNAL OF ADVANCED SIGNAL PROCESSING, vol. 5, no. 1 (7) , pp. 65–78, 2021, [Online]. Available: https://sid.ir/paper/955347/en

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