In this paper, we propose the use of metadata to define the perceptual weight of semantically meaningful regions in video frames for video quality assessment. The proposed approach is evaluated using the structural similarity (SSIM) index metric and a comparison is made with both the unweighted approach and the luminance-based weighted approach. Experimental results demonstrate that the propose...

The higher resolution image can be reconstructed from lower resolution images using SuperResolution (SR) algorithm based on Support Vector Regression (SVR) by combining the pixel intensity values with local gradient information. Support Vector Machine (SVM) can construct a hyperplane in a high or infinite dimensional space which can be used for classification. Its regression version, Support Ve...

Many tasks in image processing are carried out by solving appropriate optimization problems. As is well known, the square of the Euclidian distance is widely used as a fitting term, even though it has been shown not to be the best choice in terms of quantifying visual quality. To overcome this problem, a number of papers have examined the use of the Structural Similarity Index Measure (SSIM) as...

We derive mathematically a class of metrics for signals and images, considered as elements of R , that are based upon the structural similarity (SSIM) index. The important feature of our construction is that we consider the two terms of the SSIM index, which are normally multiplied together to produce a scalar, as components of an ordered pair. Each of these terms is then used to produce a norm...

The Structural Similarity (SSIM) Index is a very widely used image/video quality model that continues to play an important role in the perceptual evaluation of compression algorithms, encoding recipes and numerous other processing algorithms. Several public implementations SSIM Multiscale-SSIM (MS-SSIM) algorithms have been developed, which differ efficiency performance. This "bendable ruler" m...

In this letter, we study the R-D properties of independent sources based on MSE and SSIM, and compare the bit allocation performance under the MINAVE and MINMAX criteria in video encoding. The results show that MINMAX has similar results in terms of average distortion with MINAVE by using SSIM, which illustrates the consistency between these two criteria in independent perceptual video coding. ...

The recently proposed use of the structural similarity measure, in the particle filter-based video tracker has been shown to improve the tracking performance, compared to similar methods using the colour or edge histograms and Bhattacharyya distance. However, the combined use of the structural similarity and a particle filter results in a computationally complex tracker that may not be suitable...

Complex wavelet structural similarity (CW-SSIM) index has been recognized as a novel image similarity measure of broad potential applications due to its robustness to small geometric distortions such as translation, scaling and rotation of images. Nevertheless, how to make the best use of it in image classification problems has not been deeply investigated. In this paper, we introduce a series ...

Image inpainting refers to the set of techniques which include filling-in of missing area (known as holes) in a picture such that modifications made to the picture are unnoticeable. The algorithms for image inpainting that are proposed in the literature are rooted on the concept to fill-in the holes by means of available information in the surroundings. This information can be automatically det...