Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Daala: A Perceptually-Driven Still Picture Codec   Daala is a new royalty-free video codec based on perceptually-driven coding
techniques. We explore using its keyframe format for still picture coding and
show how it has improved over the past year. We believe the technology used in
Daala could be the basis of an excellent, royalty-free image format.

0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg