WCAM: CONTENTBASED CODING AND SECURING OF MOTION JPEG 2000 AND H'264 FOR WIRELESS SURVEILLANCE VIDEO

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WCAM CONTENT-BASED CODING AND SECURING OF MOTION
JPEG 2000 AND H.264 FOR WIRELESS SURVEILLANCE
VIDEO TRANSMISSION J. Meessen, C. Parisot, D.
Agrafiotis, C. Le Barz, Y. Sadourny, J.-F.
Delaigle, D Bull, D. Nicholson
Abstract
This paper presents the integrated method of the
IST WCAM project for content-based Motion JPEG
20000 and H.264 video coding. The idea is to link
statistical segmentation with the video coders so
as to guarantee high visual quality for
semantically relevant objects while meeting the
wireless bandwidth constraints. In the case of
Motion JPEG 2000 coding, the segmentation results
are also used for selective encryption. WCAMs
contributions to this challenging problem and
ongoing work are presented with current results.
Possible extensions are discussed.

• Enhancement of the JM encoder rate control
• GOP and Frame level rate control modifications
• Redistribution of frame bits to regions of
  interest based on assigned priority
• QP assignment based on new allocated bits
• Allows better quality for the ROI at the same
  bit rate at the expense of background quality

Coding with 50 ROI priority at 192 kbps ROI PSNR
27.20 dB
Standard coding at 192 kps ROI PSNR 25.9 dB
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