DocumentCode :
3428075
Title :
Compressing video based on region of interest
Author :
Aziz, Hussein Muzahim ; Fiedler, Markus ; Grahn, Hakan ; Lundberg, Lars
Author_Institution :
Sch. of Comput., Blekinge Inst. of Technol., Karlskrona, Sweden
fYear :
2013
fDate :
1-4 July 2013
Firstpage :
1645
Lastpage :
1652
Abstract :
Real-time video streaming suffer from bandwidth limitation that are unable to handle the high amount of video data. To reduce the amount of data to be streamed, we propose an adaptive technique to crop the important part of the video frames, and drop the part that are outside the important part; this part is called the Region of Interest (ROI). The Sum of Absolute Differences (SAD) is computed to the consecutive video frames on the server side to identify and extract the ROI. The ROI are extracted from the frames that are between reference frames based on three scenarios. The scenarios been designed to position the reference frames in the video frames sequence. Linear interpolation is performed from the reference frames to reconstruct the part that are outside the ROI on the mobile side. We evaluate the proposed approach for the three scenarios by looking at the size of the compressed videos and measure the quality of the videos by using the Mean Opinion Score (MOS). The results show that our technique significantly reduces the amount of data to be streamed over wireless networks with acceptable video quality are provided to the mobile viewers.
Keywords :
interpolation; radio networks; video coding; video streaming; MOS; ROI; SAD; consecutive video frame sequence; linear interpolation; mean opinion score; real-time video streaming; region of interest; sum of absolute difference; video compression; video data; video quality; wireless network; Bandwidth; Interpolation; Mobile communication; Road transportation; Streaming media; Video coding; Video sequences; Mean Opinion Score; Reference Frames; Region of Interest; Sum of Absolute Differences; Video Compression;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
EUROCON, 2013 IEEE
Conference_Location :
Zagreb
Print_ISBN :
978-1-4673-2230-0
Type :
conf
DOI :
10.1109/EUROCON.2013.6625197
Filename :
6625197
Link To Document :
بازگشت