Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A GMM-Based Stair Quality Model for Human Perceived JPEG Images   Based on the notion of just noticeable differences (JND), a stair quality
function (SQF) was recently proposed to model human perception on JPEG images.
Furthermore, a k-means clustering algorithm was adopted to aggregate JND data
collected from multiple subjects to generate a single SQF. In this work, we
propose a new method to derive the SQF using the Gaussian Mixture Model (GMM).
The newly derived SQF can be interpreted as a way to characterize the mean
viewer experience. Furthermore, it has a lower information criterion (BIC)
value than the previous one, indicating that it offers a better model. A
specific example is given to demonstrate the advantages of the new approach.

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The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th