Tobias Tröger
ABSTRACT
Mobile reception of digital TV often suffers from severe signal degradations. Inter-sequence error concealment reconstructs lost image blocks of a distorted high-resolution TV signal by inserting corresponding error-free blocks from a low-resolution reference TV signal. It is well-suited for application in future automotive multi-broadcast receivers and can outperform state-of-the-art methods by up to 15 dB PSNRY depending on the quality of the reference signal. In this contribution, we show that inter-sequence error concealment can be improved by approximating inserted blocks jointly with neighboring pixels according to a well-known frequency selective method. The reconstruction quality can be significantly increased especially in case of low-bitrate reference signals. Inserted blocks can be further refined also for high bitrates. On average, a gain of 1.7 dB PSNRY can be achieved. The peak gain which is evaluated on frame basis even reaches 5.6 dB PSNRY.
- G. Bjøntegaard. Document VCEG-M33: Calculation of average PSNR differences between RD-curves. Technical report, VCEG Meeting, Austin, USA, April 2001.Google Scholar
- A. Kaup and T. Aach. Coding of segmented images using shape-independent basis functions. Image Processing, IEEE Trans. on, 7(7):937--947, July 1998. Google ScholarDigital Library
- W.-Y. Kung, C.-S. Kim, and C.-C. Kuo. Spatial and temporal error concealment techniques for video transmission over noisy channels. Circuits and Systems for Video Technology, IEEE Trans. on, 16(7):789--803, July 2006. Google ScholarDigital Library
- W.-M. Lam, A.-R. Reibman, and B. Liu. Recovery of lost or erroneously received motion vectors. In Proc. Int. Conf. on Acoustics, Speech and Signal Processing, pages V417--V420, Minneapolis, USA, April 1993.Google ScholarCross Ref
- M. Ma, O. Au, S.-H. Chan, and M.-T. Sun. Edge-directed error concealment. Circuits and Systems for Video Techn., IEEE Trans. on, 20(3):382--395, March 2010. Google ScholarDigital Library
- A. Segall. Document JVT-Q083: Study of upsampling/downsampling for spatial scalability. Technical report, VCEG Meeting, Nice, Italy, Oct. 2005.Google Scholar
- J. Seiler and A. Kaup. Fast orthogonality deficiency compensation for improved frequency selective image extrapolation. In Proc. Int. Conf. on Acoustics, Speech and Sign. Proc., pages 781--784, Las Vegas, USA, April 2008.Google ScholarCross Ref
- T. Tröger, J. Garbas, H. Heiber, A. Schmitt, and A. Kaup. Inter-sequence error concealment of high-resolution video sequences in a multi-broadcast-reception scenario. In Proc. 16th Europ. Signal Processing Conf., Lausanne, Switzerland, Aug. 2008.Google Scholar
- T. Tröger, H. Heiber, A. Schmitt, and A. Kaup. Joint temporal and inter-sequence error concealment for multi-broadcast-reception. In Proc. 10th Worksh. Digital Broadcasting, Ilmenau, Germany, Sept. 2009.Google Scholar
Index Terms
- Spatially refined inter-sequence error concealment for a multi-broadcast receiver using frequency selective approximation
Recommendations
Error resilient coding and error concealment in scalable video coding
Scalable video coding (SVC), which is the scalable extension of the H.264/AVC standard, was developed by the Joint Video Team (JVT) of ISO/IEC MPEG (Moving Picture Experts Group) and ITU-T VCEG (Video Coding Experts Group). SVC is designed to provide ...
Error concealment of multi-view video sequences using inter-view and intra-view correlations
An efficient error concealment algorithm for multi-view video sequences is proposed in this work. First, we develop three concealment modes: temporal bilateral error concealment (TBEC), inter-view bilateral error concealment (IBEC), and multi-hypothesis ...
Video Error Concealment Using Fidelity Tracking
We propose a method to prevent the degradation of decoded MPEG pictures caused by video transmission over error-prone networks. In this paper, we focus on the error concealment that is processed at the decoder without using any backchannels. Though ...
Comments