Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A practical convolutional neural network as loop filter for intra frame   Loop filters are used in video coding to remove artifacts or improve
performance. Recent advances in deploying convolutional neural network (CNN) to
replace traditional loop filters show large gains but with problems for
practical application. First, different model is used for frames encoded with
different quantization parameter (QP), respectively. It is expensive for
hardware. Second, float points operation in CNN leads to inconsistency between
encoding and decoding across different platforms. Third, redundancy within CNN
model consumes precious computational resources.
  This paper proposes a CNN as the loop filter for intra frames and proposes a
scheme to solve the above problems. It aims to design a single CNN model with
low redundancy to adapt to decoded frames with different qualities and ensure
consistency. To adapt to reconstructions with different qualities, both
reconstruction and QP are taken as inputs. After training, the obtained model
is compressed to reduce redundancy. To ensure consistency, dynamic fixed points
(DFP) are adopted in testing CNN. Parameters in the compressed model are first
quantized to DFP and then used for inference of CNN. Outputs of each layer in
CNN are computed by DFP operations. Experimental results on JEM 7.0 report
3.14%, 5.21%, 6.28% BD-rate savings for luma and two chroma components with all
intra configuration when replacing all traditional filters.

11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc