TY - GEN
T1 - Fast modified region detection for mobile VNC systems
AU - Lee, Jae Hyeok
AU - Ko, Ha Young
AU - Kim, Jong Ok
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
KW - JPEG
KW - Mobile VNC
KW - Modified Region Detection
KW - Screen Image Encoding
UR - http://www.scopus.com/inward/record.url?scp=84875646681&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875646681&partnerID=8YFLogxK
U2 - 10.1109/iCAwST.2012.6469604
DO - 10.1109/iCAwST.2012.6469604
M3 - Conference contribution
AN - SCOPUS:84875646681
SN - 9781467321112
T3 - iCAST 2012 - Proceedings: 4th International Conference on Awareness Science and Technology
SP - 146
EP - 149
BT - iCAST 2012 - Proceedings
T2 - 4th International Conference on Awareness Science and Technology, iCAST 2012
Y2 - 21 August 2012 through 24 August 2012
ER -