Title
No-reference image quality assessment using Prewitt magnitude based on convolutional neural networks.
Abstract
No-reference image quality assessment is of great importance to numerous image processing applications, and various methods have been widely studied with promising results. These methods exploit handcrafted features in the transformation or space domain that are discriminated for image degradations. However, abundant a priori knowledge is required to extract these handcrafted features. The convolutional neural network (CNN) is recently introduced into the no-reference image quality assessment, which integrates feature learning and regression into one optimization process. Therefore, the network structure generates an effective model for estimating image quality. However, the image quality score obtained by the CNN is based on the mean of all of the image patch scores without considering the human visual system, such as edges and contour of images. In this paper, we combine the CNN and the Prewitt magnitude of segmented images and obtain the image quality score using the mean of all the products of the image patch scores and weights based on the result of segmented images. Experimental results on various image distortion types demonstrate that the proposed algorithm achieves good performance.
Year
DOI
Venue
2016
10.1007/s11760-015-0784-2
Signal, Image and Video Processing
Keywords
DocType
Volume
No-reference image quality assessment, Convolutional neural networks (CNNs), Graph-based image segmentation, Prewitt magnitude
Journal
10
Issue
ISSN
Citations 
4
1863-1711
27
PageRank 
References 
Authors
0.80
13
6
Name
Order
Citations
PageRank
J.X. Li1403113.63
Lian Zou2302.19
Jia Yan3938.85
Dexiang Deng4694.43
Tao Qu5362.40
Guihui Xie6270.80