NDLI: Arbitrary-sized motion detection in screen video coding

Content Provider	IEEE Xplore Digital Library
Author	Tao Zhang Xun Guo Yan Lu Shipeng Li Siwei Ma Debin Zhao
Copyright Year	2013
Description	Author affiliation: Microsoft Res. Asia, Beijing, China (Xun Guo; Yan Lu; Shipeng Li) \|\| Harbin Inst. of Technol., Harbin, China (Tao Zhang; Debin Zhao) \|\| Peking Univ., Beijing, China (Siwei Ma)
Abstract	In real-time screen remoting system, frame rate is one of essential factors that affect user experience. Therefore, how to compress diversity of screen contents fast and efficiently is a key issue. Existing video codecs such as H.264 are always used in such a system for screen compression. However, arbitrary-sized regions with large motion always exist in typical screen content videos, which lead to a lower encoding speed and higher bit-rate, thereby decrease the frame rate. This paper proposes an efficient motion detection algorithm, which is fast and efficient for large motion regions. In specific, a region-based motion detection is used to find motion vectors instead of traditional block based motion estimation. The motion vectors are then utilized by H.264 encoder for normal motion compensated prediction. Experimental results show that the proposed algorithm can reduce both encoding time and bit-rate significantly.
Starting Page	1943
Ending Page	1947
File Size	487790
Page Count	5
File Format	PDF
ISBN	9781479923410
DOI	10.1109/ICIP.2013.6738400
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-15
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	H.264 Screen video coding motion detection
Content Type	Text
Resource Type	Article

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