Region-of-interest based rate control for UAV video coding

Abstract

To meet the requirement of high-quality transmission of videos captured by unmanned aerial vehicles (UAV) with low bandwidth, a novel rate control (RC) scheme based on region-of-interest (ROI) is proposed. First, the ROI information is sent to the encoder with the latest high efficient video coding (HEVC) standard to generate an ROI map. Then, by using the ROI map, bit allocation methods are developed at frame level and large coding unit (LCU) level, to avoid inaccurate bit allocation produced by camera movement. At last, by using a better robustness R-λ model, the quantization parameter (QP) for each LCU is calculated. The experimental results show that the proposed RC method can get a lower bitrate error and a higher quality for reconstructed video by choosing appropriate pixel weight on the HEVC platform.

References

[1] SchneidermanR.. IEEE Signal Processing Magazine, 2012, 29: 8

[2] BhaskaranandM., GibsonJ. D.. IEEE Journal of Selected Topics in Signal Processing, 2015, 9: 139

[3] JoanB.-R., JoanS.-S., FrancescA.-L.. IEEE Signal Processing Letters, 2009, 16: 45

[4] KimJ. Y., YiC. H., KimT. Y.. IEEE Transactions on Consumer Electronics, 2010, 56: 951

[5] LiuY., LiZ., SohY.. IEEE Transactions on Circuits and Systems for Video Technology, 2008, 18: 134

[6] SunK., WuD.. Journal of Visual Communication & Image Representation, 2015, 30: 234

[7] XuS.-y., YuM., JiangG.-y., FangS.-q., ShaoF.. Journal of Optoelectronics·Laser, 2015, 26: 2381

[8] XuJ., WangR.-d., HuangM.-l., LiQ., XuD.-w.. Journal of Optoelectronics·Laser, 2015, 26: 1753

[9] SullivanG. J., OhmJ.-R., HanW.-J., WiegandT.. IEEE Transactions on Circuits and Systems for Video Technology, 2012, 22: 1649

[10] XvM., DengX., LiS., WangZ.. IEEE Journal of Selected Topics in Signal Processing, 2014, 8: 475

[11] SimoneM., RiccardoB., RobertoR.. A Saliency-Based Rate Control for People Detection in Video, IEEE International Conference on Acoustics, Speech and Signal Processing, 2016, 2013,

[12] LiB., LiH., LiL., ZhangJ.. Rate Control by R-lambda Model for HEVC, ITU-T SG16 Contribution, JCT-VC K0103, Shanghai, 2012,

[13] WangX., KarczewiczM.. Intra Frame Rate Control Based on SATD, ITU-T SG16 Contribution, 2013,

[14] LiS., XuM., DengX., WangZ.. Signal Processing-Image Communication, 2015, 38: 127

[15] MarwaM., MarcoC., BeatriceP.-P.. Region-of-Interest Based Rate Control Scheme for High Efficiency Video Coding, IEEE International Conference on Acoustics, Speech and Signal Processing, 2014, 7338

[16] BorjiA., SihiteD. N., IttiL.. IEEE Transactions on Image Processing, 2015, 24: 414

[17] ChengM.-M., ZhangZ., LinW.-Y., TorrP.. BING: Binarized Normed Gradients for Objectness Estimation at 300fps, IEEE Conference on Computer Vision and Pattern Recognition, 2014,

[18] ZhouH., KongH., WeiL., CreightonD., NahavandiS.. IEEE Transactions on Intelligent Transportation Systems, 2015, 16: 297

[19] WangM., NganK. N., LiH.. IEEE Signal Processing Letters, 2015, 22: 896

[20] HEVC Reference Software, http://hevc.kw.bbc.co.uk/trac/browser/jctvc-hm/tags, 2012.

Just Accepted

This article has successfully passed peer review and final editorial review, and will soon enter typesetting, proofreading and other publishing processes. The currently displayed version is the accepted final manuscript. The officially published version will be updated with format, DOI and citation information upon launch. We recommend that you pay attention to subsequent journal notifications and preferentially cite the officially published version. Thank you for your support and cooperation.