NDLI: Video quality improvement for multi-camera systems using camera control

Content Provider	IEEE Xplore Digital Library
Author	Jianghua Zhong Kleijn, W.B. Xiaoming Hu
Copyright Year	2014
Description	Author affiliation: Optimization & Syst. Theor. & ACCESS Linnaeus Center, KTH-R. Inst. of Technol., Stockholm, Sweden (Xiaoming Hu) \|\| Sch. of Eng. & Comput. Sci., Victoria Univ. of Wellington, Wellington, New Zealand (Kleijn, W.B.) \|\| Inst. of Complexity Sci., Qingdao Univ., Qingdao, China (Jianghua Zhong)
Abstract	Multiview video captured by a multi-camera system has been widely used in many applications such as environmental surveillance, industrial inspection and 3D television. A multiview video contains a vast amount of data required to be transmitted and/or stored, and therefore compression is essential. However, distortion or artifacts are usually witnessed in the reconstructed multiview video after a raw multiview video is compressed at a limited bit-rate. Previous results on video compression mainly focus on the refinements of compression algorithms to improve the quality of reconstructed multiview videos. This paper uses a camera control for video capture to improve the quality of reconstructed multiview videos at a limited bit-rate. Individual cameras are controlled to adjust their pan angles and focal lengths at the video acquisition stage to compensate for the difference in feature-point locations. The optimal pan angle and focal length are designed for each camera. Experimental results validate that the proposed method capturing with camera control outperforms the conventional method capturing without camera control and the heuristic method of “keeping the object of interest in the image center”.
Starting Page	1924
Ending Page	1931
File Size	267515
Page Count	8
File Format	PDF
ISBN	9789881563873
ISSN	19341768
DOI	10.1109/ChiCC.2014.6896924
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-28
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	TCCT, CAA
Subject Keyword	Visualization video compression object monitoring Streaming media Cameras Mobile communication video quality improvement Arrays Camera control Image reconstruction Optimization multi-camera system
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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