实际上,当需要衡量一整张图片的质量,经常使用的是以一个一个窗口计算SSIM然后求平均。 当我们用一个一个block去计算平均值,标准差,协方差时,这种方法容易造成blocking artifacts, 所以在计算MSSIM时,会使用到circular-symmetric Gaussian weighting function圆对称的高斯加权公式{w}={w_i|i=1,2,..,N}, ...
结构相似指标（SSIM）是一种衡量图片失真程度或相似度的感知模型，它与MSE（均方误差）和PSNR（峰值信噪比）不同，更符合人眼的直观感受。在MSE下，不同SSIM值会呈现出不同的图片效果。SSIM值范围在[-1, 1]之间，具有对称性、边界性以及唯一最大性。当且仅当x和y相等时，SSIM等于1。SSIM主要考虑图片...
Chinese Provincial Economic Structure Similarity Measure and the Restructuring Strategy Study on Energy Resource Industry Belt 来自 Semantic Scholar 喜欢 0 阅读量: 46 作者:MM Shi,XJ Zhang,SO Business 摘要: This paper constructs an index of industrial aggregating and cluster and measures China's ...
penalizes results that are not perceptually similar to labels by defining a distance measure between activation maps of a pre-trained network 其中,\Phi _i表示预训练网络第i层的 activation map ,对应于 relu1_1, relu2_1, relu3 1, relu41 and relu5_1 of the VGG-19 network pre-trained on...
Specially, we propose the local structure consistency as the patch-level knowledge, which integrate the structural similarity index measure into our framework to provide some local structural constrains between the outputs of teacher and the student. Furthermore, we propose the pixel-correlation ...
Specially, we propose the local structure consistency as the patch-level knowledge, which integrate the structural similarity index measure into our framework to provide some local structural constrains between the outputs of teacher and the student. Furthermore, we propose the pixel-correlation ...
The result is that the similarity measure used can vary depending on the query posed to the system. Thus the indexing structure should be able to satisfy similarity-based queries for a wide range of similarity measures. Also, a realistic expectation of an image/video DBMS would be for it to...
To evaluate the structural similarity between two molecules, the Tanimoto coefficient (Tc, known as the Jaccard index), a measure of the similarity between two compounds, was proposed (Lipkus, 1999). A higher Tc score indicates that two compounds are more similar, but Tc does not provide ...
We use an index named TaskEdgeIndex for query processing. During query processing, we estimate the minimum number of edges that must be contained according to the given similarity threshold, and then obtain the candidate models through the index. Then we compute the similarity between the query ...
Khodaei, "A new Structural Similarity Measure for Ontology Alignment," Proceedings of the 2006 International Conference on Semantic Web & Web Services, SWWS 2006, Las Vegas, Nevada, USA... BB Hariri,H Abolhassani,A Khodaei 被引量: 0发表: 2006年 ...