University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Lagrange-based video encoder optimisation to enhance motion representation in the compressed-domain

Rajakaruna, RMTP, Fernando, WAC and Ćalić, J (2012) Lagrange-based video encoder optimisation to enhance motion representation in the compressed-domain Proceedings - IEEE International Conference on Multimedia and Expo. pp. 479-484.

[img] Text (deleted)
06298447.pdf - ["content_typename_Submitted version (pre-print)" not defined]
Restricted to Repository staff only
Available under License : See the attached licence file.

Download (467kB)
[img] Text
ICME2012.pdf - ["content_typename_UNSPECIFIED" not defined]
Restricted to Repository staff only
Available under License : See the attached licence file.

Download (624kB)
[img] PDF (licence)
SRI_deposit_agreement.pdf
Restricted to Repository staff only
Available under License : See the attached licence file.

Download (33kB)

Abstract

Compressed-domain content analysis enables fast content-based video applications. However, conventional encoder implementation, limited to optimising data compression, does not necessarily result in content representative compressed features. In this paper, we present a novel method for video encoder optimisation that enhances reliability of content representation in the compressed video. We propose a configurable encoder model to jointly optimise bit-rate, distortion and content representation of the encoded video. In encoder optimisation for motion estimation, we analyse the behaviour of motion representation and compression efficiency over a range of content complexities. A mathematical model to control the extent of noise in selected motion vectors is presented. We demonstrate that the compressed domain motion information can be enhanced without incurring a rate-distortion overhead. The computational overheads are marginal and can be eliminated by exploiting the inherently parallel nature of the proposed optimisation model. © 2012 IEEE.

Item Type: Article
Authors :
AuthorsEmailORCID
Rajakaruna, RMTPUNSPECIFIEDUNSPECIFIED
Fernando, WACUNSPECIFIEDUNSPECIFIED
Ćalić, JUNSPECIFIEDUNSPECIFIED
Date : 2012
Identification Number : https://doi.org/10.1109/ICME.2012.129
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 13:26
Last Modified : 28 Mar 2017 13:26
URI: http://epubs.surrey.ac.uk/id/eprint/804681

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800