Perceptual video quality assessment on a mobile platform considering both spatial resolution and quantization artifacts

Yuanyi Xue, Yen Fu Ou, Zhan Ma, Yao Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we investigated the impact of spatial resolution and quantization on the perceptual quality of a compressed video coded from the SVC reference software - JSVM. Two subjective quality tests have been carried out on the TI Zoom2 mobile development platform (MDP). 5 different spatial resolutions (i.e., from QCIF to 4CIF) and 4 different quantization levels (i.e., QP 22, 28, 36, 44) are chosen to create the processed video sequences (PVS) from 7 different video sources. First test focuses on the effect of spatial resolution at fixed QP 22, while second test explores the impact of both spatial resolution and quantization artifacts. Videos coded at different spatial resolutions are displayed at the full screen size of the mobile platform. We report the test results in terms of how MOS reduces as the spatial resolution decreases at constant QP, and how MOS reduces as QP increases under the same spatial resolution. We found that the dropping rate of the MOS vs. spatial resolution increases as QP increases and the dropping rate of the MOS vs. QP increases as spatial resolution reduces. In addition, the dropping rate against spatial resolution is faster when the video is changing in a lower motion speed; while the dropping rate against QP is faster when the video has less texture details. Also, the dropping rate of MOS against spatial resolution can be captured by a one-parameter falling exponential function in most of cases.

Original languageEnglish (US)
Title of host publicationPV 2010 - 2010 18th International Packet Video Workshop
Pages201-208
Number of pages8
DOIs
StatePublished - 2010
Event2010 18th International Packet Video Workshop, PV 2010 - Hong Kong, China
Duration: Dec 13 2010Dec 14 2010

Other

Other2010 18th International Packet Video Workshop, PV 2010
CountryChina
CityHong Kong
Period12/13/1012/14/10

Fingerprint

Exponential functions
Textures

Keywords

  • Perceptual quality
  • Quantization
  • Scalable video
  • Spatial resolution

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Xue, Y., Ou, Y. F., Ma, Z., & Wang, Y. (2010). Perceptual video quality assessment on a mobile platform considering both spatial resolution and quantization artifacts. In PV 2010 - 2010 18th International Packet Video Workshop (pp. 201-208). [5706839] https://doi.org/10.1109/PV.2010.5706839

Perceptual video quality assessment on a mobile platform considering both spatial resolution and quantization artifacts. / Xue, Yuanyi; Ou, Yen Fu; Ma, Zhan; Wang, Yao.

PV 2010 - 2010 18th International Packet Video Workshop. 2010. p. 201-208 5706839.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Xue, Y, Ou, YF, Ma, Z & Wang, Y 2010, Perceptual video quality assessment on a mobile platform considering both spatial resolution and quantization artifacts. in PV 2010 - 2010 18th International Packet Video Workshop., 5706839, pp. 201-208, 2010 18th International Packet Video Workshop, PV 2010, Hong Kong, China, 12/13/10. https://doi.org/10.1109/PV.2010.5706839
Xue, Yuanyi ; Ou, Yen Fu ; Ma, Zhan ; Wang, Yao. / Perceptual video quality assessment on a mobile platform considering both spatial resolution and quantization artifacts. PV 2010 - 2010 18th International Packet Video Workshop. 2010. pp. 201-208
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