Title
Sparse Representations-Based Depth Images Quality Assessment
Abstract
The conventional 2D metrics can be used for measuring the quality of depth maps, but none of them is considered to be efficient and is not accurate when used for evaluating 3D quality. In this paper, we propose a new full reference objective metric, called Sparse Representations-Mean Squared Error (SR-MSE), which efficiently evaluates the depth maps compression distortions. It adaptively models the reference and compressed depth maps in a mixed redundant transform domain dedicated to depth features. Then, it computes the mean squared error between the sparse coefficients issued from this modeling. As a benchmark of quality assessment, we perform a subjective evaluation test for depth maps compressed using the latest 3D High Efficiency Video Coding standard at various bitrates. We compare the subjective results with the proposed and conventional objective metrics. Experimental results demonstrate that the proposed SR-MSE, compared to the conventional image quality assessment metrics, yields the highest correlated scores to the subjective ones. (C) 2021 The Author(s). Published by Elsevier B.V. on behalf of Zhejiang University and Zhejiang University Press Co. Ltd.
Year
DOI
Venue
2021
10.1016/j.visinf.2021.02.004
VISUAL INFORMATICS
Keywords
DocType
Volume
Depth maps, Sparse representations, Transform domain, Image Quality Assessment, 3D-HEVC
Journal
5
Issue
ISSN
Citations 
1
2468-502X
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Dorsaf Sebai142.78
Maryem Sehli200.34
Faouzi Ghorbel300.34