Title :
Influence of HEVC compression on event detection in security video sequences
Author :
Vitek, Stanislav ; Krasula, Lukas ; Klima, Milos ; Hvezda, Vojtech ; Herrera Martinez, Marcelo
Author_Institution :
Czech Tech. Univ. in Prague, Prague, Czech Republic
Abstract :
In this paper, the impact of the degree of compression by High Efficiency Video Coding (HEVC) on observers ability of detecting certain events in videos obtained by outdoor CCTV cameras is studied. This was done by extensive subjective testing. The testing was performed also for H.264/MPEG-4 Part 10 AVC compression on similar bitrates and the capabilities of detection were compared and thus the superiority of HEVC was proven. Also the threshold for encoder setting, where the increase of bit rate or decrease of quantization parameter (QP) do not improve observers ability to detect the events, was proposed.
Keywords :
closed circuit television; data compression; image sequences; object detection; security of data; video cameras; video codecs; video coding; H.264-MPEG-4 part 10 AVC compression; HEVC compression influence; QP; closed circuit television; detection bitrates; encoder setting; event detection capability; extensive subjective testing; high efficiency video coding; observers ability; outdoor CCTV cameras; quantization parameter; security video sequences; Bit rate; Codecs; Observers; Security; TV; Closed Circuit Television (CCTV); Event Detection; H.264/MPEG-4 Part 10 AVC; High Efficiency Video Coding (HEVC); Security; Video Compression;
Conference_Titel :
Security Technology (ICCST), 2013 47th International Carnahan Conference on
Conference_Location :
Medellin
DOI :
10.1109/CCST.2013.6922066
