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Title:
VIDEO QUALITY ESTIMATION DEVICE, VIDEO QUALITY ESTIMATION METHOD, AND VIDEO QUALITY ESTIMATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2011/048829
Kind Code:
A1
Abstract:
Provided is a video quality estimation device comprising: a packet analyzing unit (10) that derives the bit rate of an encoded video packet included in an inputted packet, and derives the bit quantity for each of the encoded video frame types of the encoded video packet; a video subset frame characteristic estimation unit (11) that derives the frame characteristics of each of the video frame types from the bit rate derived by the packet analyzing unit (10); and an encoding quality estimation unit (12) that derives a video quality value that quantitatively indicates the quality of encoded video data affected by deterioration in encoding, on the basis of the bit rate and the bit quantity on a per video frame type basis. A video quality estimation device (1) is thereby provided that takes into account the bit quantity on the per video frame type basis, estimating video quality more accurately.

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Inventors:
YAMAGISHI KAZUHISA (JP)
HAYASHI TAKANORI (JP)
OKAMOTO JUN (JP)
Application Number:
PCT/JP2010/055203
Publication Date:
April 28, 2011
Filing Date:
March 25, 2010
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
YAMAGISHI KAZUHISA (JP)
HAYASHI TAKANORI (JP)
OKAMOTO JUN (JP)
International Classes:
H04N7/173; H04N17/00; H04N7/26
Domestic Patent References:
WO2009116666A12009-09-24
Foreign References:
JP2009188969A2009-08-20
JP2007306109A2007-11-22
JP2006033722A2006-02-02
JP2006033722A2006-02-02
Other References:
K. YAMAGISHI; T. HAYASHI: "Parametric Packet-Layer Model for Monitoring Video Quality of IPTV Services", IEEE ICC 2008, May 2008 (2008-05-01)
USHIKI; HAYASHI: "Computational Cost Reduction of Picture Type Estimation Method using TS Header Information", IEICE TECHNICAL REPORT, September 2008 (2008-09-01)
Attorney, Agent or Firm:
YAMAKAWA, Masaki et al. (JP)
Masaki Yamakawa (JP)
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