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Visual quality assessment of H.264/AVC compressed laparoscopic video

Asli Kumcu UGent, Klaas Bombeke UGent, Heng Chen, Ljubomir Jovanov UGent, Ljiljana Platisa UGent, Hiep Luong UGent, Jan Van Looy UGent, Yves Van Nieuwenhove UGent, Peter Schelkens and Wilfried Philips UGent (2014) Medical Imaging 2014 : Image Perception, Observer Performance, and Technology Assessment, Proceedings. 9037. p.1-12
abstract
The digital revolution has reached hospital operating rooms, giving rise to new opportunities such as tele-surgery and tele-collaboration. Applications such as minimally invasive and robotic surgery generate large video streams that demand gigabytes of storage and transmission capacity. While lossy data compression can offer large size reduction, high compression levels may significantly reduce image quality. In this study we assess the quality of compressed laparoscopic video using a subjective evaluation study and three objective measures. Test sequences were full High-Definition videos captures of four laparoscopic surgery procedures acquired on two camera types. Raw sequences were processed with H.264/AVC IPPP-CBR at four compression levels (19.5, 5.5, 2.8, and 1.8 Mbps). 16 non-experts and 9 laparoscopic surgeons evaluated the subjective quality and suitability for surgery (surgeons only) using Single Stimulus Continuous Quality Evaluation methodology. VQM, HDR-VDP-2, and PSNR objective measures were evaluated. The results suggest that laparoscopic video may be lossy compressed approximately 30 to 100 times (19.5 to 5.5 Mbps) without sacrificing perceived image quality, potentially enabling real-time streaming of surgical procedures even over wireless networks. Surgeons were sensitive to content but had large variances in quality scores, whereas non-experts judged all scenes similarly and over-estimated the quality of some sequences. There was high correlation between surgeons’ scores for quality and “suitability for surgery”. The objective measures had moderate to high correlation with subjective scores, especially when analyzed separately by camera type. Future studies should evaluate surgeons’ task performance to determine the clinical implications of conducting surgery with lossy compressed video.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
video compression, quality assessment, H.264/AVC, laparoscopy, telemedicine, telesurgery
in
Medical Imaging 2014 : Image Perception, Observer Performance, and Technology Assessment, Proceedings
editor
Claudia R Mello-Thoms and Matthew A Kupinski
volume
9037
article number
90370A
pages
1 - 12
publisher
SPIE
conference name
Medical Imaging 2014 : Image Perception, Observer Performance, and Technology Assessment
conference location
San Diego, California, USA
conference start
2014-02-09
conference end
2014-02-14
DOI
10.1117/12.2044336
project
IBBT Telesurgery
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
5754696
handle
http://hdl.handle.net/1854/LU-5754696
alternative location
http://dx.doi.org/10.1117/12.2044336
date created
2014-11-14 01:32:56
date last changed
2016-12-21 15:41:05
@inproceedings{5754696,
  abstract     = {The digital revolution has reached hospital operating rooms, giving rise to new opportunities such as tele-surgery and tele-collaboration. Applications such as minimally invasive and robotic surgery generate large video streams that demand gigabytes of storage and transmission capacity. While lossy data compression can offer large size reduction, high compression levels may significantly reduce image quality. In this study we assess the quality of compressed laparoscopic video using a subjective evaluation study and three objective measures. Test sequences were full High-Definition videos captures of four laparoscopic surgery procedures acquired on two camera types. Raw sequences were processed with H.264/AVC IPPP-CBR at four compression levels (19.5, 5.5, 2.8, and 1.8 Mbps). 16 non-experts and 9 laparoscopic surgeons evaluated the subjective quality and suitability for surgery (surgeons only) using Single Stimulus Continuous Quality Evaluation methodology. VQM, HDR-VDP-2, and PSNR objective measures were evaluated. The results suggest that laparoscopic video may be lossy compressed approximately 30 to 100 times (19.5 to 5.5 Mbps) without sacrificing perceived image quality, potentially enabling real-time streaming of surgical procedures even over wireless networks. Surgeons were sensitive to content but had large variances in quality scores, whereas non-experts judged all scenes similarly and over-estimated the quality of some sequences. There was high correlation between surgeons{\textquoteright} scores for quality and {\textquotedblleft}suitability for surgery{\textquotedblright}. The objective measures had moderate to high correlation with subjective scores, especially when analyzed separately by camera type. Future studies should evaluate surgeons{\textquoteright} task performance to determine the clinical implications of conducting surgery with lossy compressed video.},
  articleno    = {90370A},
  author       = {Kumcu, Asli and Bombeke, Klaas and Chen, Heng and Jovanov, Ljubomir and Platisa, Ljiljana and Luong, Hiep and Van Looy, Jan and Van Nieuwenhove, Yves and Schelkens, Peter and Philips, Wilfried},
  booktitle    = {Medical Imaging 2014 : Image Perception, Observer Performance, and Technology Assessment, Proceedings},
  editor       = {Mello-Thoms, Claudia R and Kupinski, Matthew A },
  keyword      = {video compression,quality assessment,H.264/AVC,laparoscopy,telemedicine,telesurgery},
  language     = {eng},
  location     = {San Diego, California, USA},
  pages        = {90370A:1--90370A:12},
  publisher    = {SPIE},
  title        = {Visual quality assessment of H.264/AVC compressed laparoscopic video},
  url          = {http://dx.doi.org/10.1117/12.2044336},
  volume       = {9037},
  year         = {2014},
}

Chicago
Kumcu, Asli, Klaas Bombeke, Heng Chen, Ljubomir Jovanov, Ljiljana Platisa, Hiep Luong, Jan Van Looy, Yves Van Nieuwenhove, Peter Schelkens, and Wilfried Philips. 2014. “Visual Quality Assessment of H.264/AVC Compressed Laparoscopic Video.” In Medical Imaging 2014 : Image Perception, Observer Performance, and Technology Assessment, Proceedings, ed. Claudia R Mello-Thoms and Matthew A Kupinski, 9037:1–12. SPIE.
APA
Kumcu, A., Bombeke, K., Chen, H., Jovanov, L., Platisa, L., Luong, H., Van Looy, J., et al. (2014). Visual quality assessment of H.264/AVC compressed laparoscopic video. In C. R. Mello-Thoms & M. A. Kupinski (Eds.), Medical Imaging 2014 : Image Perception, Observer Performance, and Technology Assessment, Proceedings (Vol. 9037, pp. 1–12). Presented at the Medical Imaging 2014 : Image Perception, Observer Performance, and Technology Assessment, SPIE.
Vancouver
1.
Kumcu A, Bombeke K, Chen H, Jovanov L, Platisa L, Luong H, et al. Visual quality assessment of H.264/AVC compressed laparoscopic video. In: Mello-Thoms CR, Kupinski MA, editors. Medical Imaging 2014 : Image Perception, Observer Performance, and Technology Assessment, Proceedings. SPIE; 2014. p. 1–12.
MLA
Kumcu, Asli, Klaas Bombeke, Heng Chen, et al. “Visual Quality Assessment of H.264/AVC Compressed Laparoscopic Video.” Medical Imaging 2014 : Image Perception, Observer Performance, and Technology Assessment, Proceedings. Ed. Claudia R Mello-Thoms & Matthew A Kupinski. Vol. 9037. SPIE, 2014. 1–12. Print.