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Proceedings Paper

Content-dependent block noise reduction for mobile displays
Author(s): Ga-Hee Kim; Yoon-Gyoo Lee; Han-Eol Kim; Choon-Woo Kim
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Paper Abstract

Number of pixels on mobile displays is rapidly increasing. Recently, mobile displays with more than one million pixels have been introduced into markets. However, most of multimedia contents to be displayed on mobile displays have much smaller pixel counts. For example, number of pixels for a T-DMB(terrestrial digital multimedia broadcasting) sequence is 320x240. When enlargement is applied to input sequence, perceived image quality would be degraded. Increase in visibility of block noise is one of the major reasons for image quality degradation on mobile displays. This paper presents a simple and computationally efficient method to reduce visibility of block noise on enlarged multimedia sequences. In proposed method, a simple low pass filtering is selectively applied to the pixels of block noises for reduction of block noise visibility as well as faithful reproduction of image details.

Paper Details

Date Published: 24 January 2012
PDF: 7 pages
Proc. SPIE 8292, Color Imaging XVII: Displaying, Processing, Hardcopy, and Applications, 829215 (24 January 2012); doi: 10.1117/12.909825
Show Author Affiliations
Ga-Hee Kim, Inha Univ. (Korea, Republic of)
Yoon-Gyoo Lee, Inha Univ. (Korea, Republic of)
Han-Eol Kim, Inha Univ. (Korea, Republic of)
Choon-Woo Kim, Inha Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 8292:
Color Imaging XVII: Displaying, Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu; Alessandro Rizzi, Editor(s)

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