An enhancement of leaky prediction layered video coding

Get BibTex-formatted data

Download

PDF

Author

Y Liu, P Salama, Z Li, EJ Delp

Entry type

article

Abstract

In this paper, we focus on leaky prediction layered video coding (LPLC). LPLC includes a scaled version of the enhancement layer within the motion compensation (MC) loop to improve the coding efficiency while maintaining graceful recovery in the presence of error drift. However, there exists a deficiency inherent in the LPLC structure, namely that the reconstructed video quality from both the enhancement layer and the base layer cannot be guaranteed to be always superior to that of using the base layer alone, even when no drift occurs. In this paper, we: 1) highlight this deficiency using a formulation that describes LPL; 2) propose a general framework that applies to both LPLC and a multiple description coding scheme using MC and we use this framework to further confirm the existence of the deficiency in LPLC; and 3) furthermore, we propose an enhanced LPLC based on maximum-likelihood estimation to address the previously specified deficiency in LPLC. We then show how our new method performs compared to LPLC.

Download

PDF

Date

2005 – 11

Journal

Circuits and Systems for Video Technology, IEEE Transactions on

Key alpha

Delp

Number

Pages

1317-1331

Volume

Publication Date

2005-11-01

Keywords

image enhancement, image reconstruction, maximum likelihood estimation, motion compensation, rate distortion theory, video coding LPLC, coding efficiency, enhancement layer, error resilience, leaky prediction layered video coding, maximum-likelihood estimation, motion compensation loop, multiple description coding scheme, rate distortion, video quality reconstruction

BibTex-formatted data

To refer to this entry, you may select and copy the text below and paste it into your BibTex document. Note that the text may not contain all macros that BibTex supports.

@Article{ Delp,
	title = "An enhancement of leaky prediction layered video coding",
	author = "Y Liu, P Salama, Z Li, EJ Delp",
	year = "2005",
	month = "11",
	journal = "Circuits and Systems for Video Technology, IEEE Transactions on",
	number = "11",
	pages = "1317-1331",
	volume = "15",
	abstract = "In this paper, we focus on leaky prediction layered video coding (LPLC). LPLC includes a scaled version of the enhancement layer within the motion compensation (MC) loop to improve the coding efficiency while maintaining graceful recovery in the presence of error drift. However, there exists a deficiency inherent in the LPLC structure, namely that the reconstructed video quality from both the enhancement layer and the base layer cannot be guaranteed to be always superior to that of using the base layer alone, even when no drift occurs. In this paper, we: 1) highlight this deficiency using a formulation that describes LPL; 2) propose a general framework that applies to both LPLC and a multiple description coding scheme using MC and we use this framework to further confirm the existence of the deficiency in LPLC; and 3) furthermore, we propose an enhanced LPLC based on maximum-likelihood estimation to address the previously specified deficiency in LPLC. We then show how our new method performs compared to LPLC.",
	keywords = "image enhancement, image reconstruction, maximum likelihood estimation, motion compensation, rate distortion theory, video coding LPLC, coding efficiency, enhancement layer, error resilience, leaky prediction layered video coding, maximum-likelihood estimation, motion compensation loop, multiple description coding scheme, rate distortion, video quality reconstruction",
}