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Video quality improvement for multi-camera systems using camera control
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Optimization and Systems Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-0177-1993
2014 (English)In: Proceedings of the 33rd Chinese Control Conference, CCC 2014, 2014, 1924-1931 p.Conference paper, Published paper (Refereed)
Abstract [en]

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'.

Place, publisher, year, edition, pages
2014. 1924-1931 p.
Keyword [en]
Camera control, multi-camera system, object monitoring, video compression, video quality improvement
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-168878DOI: 10.1109/ChiCC.2014.6896924Scopus ID: 2-s2.0-84907930110ISBN: 9789881563842 (print)OAI: oai:DiVA.org:kth-168878DiVA: diva2:819456
Conference
Proceedings of the 33rd Chinese Control Conference, CCC 2014, 28 July 2014 through 30 July 2014
Note

QC 20150610

Available from: 2015-06-10 Created: 2015-06-09 Last updated: 2015-06-10Bibliographically approved

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Hu, Xiaoming

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf