Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Survey on Perceptually Optimized Video Coding   Videos are developing in the trends of Ultra High Definition (UHD), High
Frame Rate (HFR), High Dynamic Range (HDR), Wide Color Gammut (WCG) and high
fidelity, which provide users with more realistic visual experiences. However,
the amount of video data increases exponentially and requires high efficiency
video compression for storage and network transmission. Perceptually optimized
video coding aims to exploit visual redundancies in videos so as to maximize
compression efficiency. In this paper, we present a systematic survey on the
recent advances and challenges on perceptually optimized video coding. Firstly,
we present problem formulation and framework of perceptually optimized video
coding, which includes visual perception modelling, visual quality assessment
and perception guided coding optimization. Secondly, the recent advances on
visual factors, key computational visual models and quality assessment models
are presented. Thirdly, we do systematic review on perceptual video coding
optimizations from four key aspects, which includes perceptually optimized bit
allocation, rate-distortion optimization, transform and quantization, filtering
and enhancement. In each part, problem formulation, working flow, recent
advances, advantages and challenges are presented. Fourthly, perceptual coding
performance of latest coding standards and tools are experimentally analyzed.
Finally, challenging issues and future opportunities on perceptual video coding
are identified.

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The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
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The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
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The categories of this paper are: solv-int
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The categories of this paper are: math-ph
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The categories of this paper are: nlin
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The categories of this paper are: acc-phys
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: funct-an