Title :
Low complexity video enhancement of video phone calls with a limited mobile terminal´s capability
Author :
Lee, Sungho ; Yang, Jungyoup ; Jeon, Byeungwoo
Author_Institution :
Dept. of Mobile Commun. Eng., Sungkyunkwan Univ., Suwon
Abstract :
Currently, most Korean domestic 3G terminals use VT (video telephony) service. This service is based on circuit switching with video codec standard of H.263 or MPEG-4. There is a strong need for enhancing image qualities by VT terminal before transmitting, however, its limited processing capability does not allow for such processing. In this paper, we propose a low complexity video post-processing method implementable in resource-limited Qualcommtrade MSM platform. This proposed algorithm improves low quality video acquired by cheap VGA camera taken in un-friendly environment. It improves brightness and colors, so it perceptually enhances image quality in VT.
Keywords :
3G mobile communication; image enhancement; video codecs; video coding; videotelephony; H.263; MPEG-4; VGA camera; circuit switching; domestic 3G terminals; image enhancement; image quality; low complexity video enhancement; mobile terminal capability; resource-limited Qualcomm MSM platform; video codec standard; video phone calls; video telephony service; 3G mobile communication; Code standards; Communication switching; Image quality; Quadratic programming; Switching circuits; Telephony; Video codecs; Video compression; Video sharing; Limited Mobile Capability; Low Complexity; Post Processing; Video Enhancement; Video Phone Calls;
Conference_Titel :
Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on
Conference_Location :
Phoenix Park
Print_ISBN :
978-89-5519-138-7
Electronic_ISBN :
1738-9445