Fast modified region detection for mobile VNC systems

Jae Hyeok Lee, Ha Young Ko, Jong-Ok Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In recent years, VNC (virtual network computing) has become one of the popular tools for a multi-platform application suite allowing users to access graphic displays remotely. However, typical video encoders targeted for high compression efficiency, are inappropriate for mobile VNC systems where computational complexity is of primary concern. In this work, we propose fast modified region detection methods to reduce encoder computation in a mobile VNC server. By encoding and transmitting modified regions only between current and previous screen images, the encoding time can be significantly reduced. We implemented a prototype mobile VNC system, and the proposed methods are practically evaluated. The proposed methods enable fast encoding of screen images by detecting modified regions quickly, and consequently lead to the decrease of encoding time and the increase of screen update rate at a VNC client.

Original languageEnglish
Title of host publicationiCAST 2012 - Proceedings: 4th International Conference on Awareness Science and Technology
Pages146-149
Number of pages4
DOIs
Publication statusPublished - 2012 Dec 1
Event4th International Conference on Awareness Science and Technology, iCAST 2012 - Seoul, Korea, Republic of
Duration: 2012 Aug 212012 Aug 24

Other

Other4th International Conference on Awareness Science and Technology, iCAST 2012
CountryKorea, Republic of
CitySeoul
Period12/8/2112/8/24

Keywords

  • JPEG
  • Mobile VNC
  • Modified Region Detection
  • Screen Image Encoding

ASJC Scopus subject areas

  • Management of Technology and Innovation

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  • Cite this

    Lee, J. H., Ko, H. Y., & Kim, J-O. (2012). Fast modified region detection for mobile VNC systems. In iCAST 2012 - Proceedings: 4th International Conference on Awareness Science and Technology (pp. 146-149). [6469604] https://doi.org/10.1109/iCAwST.2012.6469604