An error concealment algorithm for streaming video

Belfiore, S.; Grangetto, Marco; Magli, Enrico; Olmo, Gabriella

doi:10.1109/icip.2003.1247328

Cited by 33 publications

(11 citation statements)

References 6 publications

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“…In this paper we have compared the proposed technique with various approaches discussed in [7], [10], [11], [12], [13], [14], [15], [16]. The said techniques are either complex to implement or require additional memory for performing concealment which would not be suitable for real-time applications especially on hand-held devices.…”

Section: Discussionmentioning

confidence: 99%

“…These methods are thus not suitable to perform real-time error concealment. Researchers in [14], [15] use MVs from previous frames to estimate the lost MVs in current frame, thereby increasing decoder memory requirement. The Pixel based Overlapped Block Error Concealment (P-OBEC) and Motion Vector OBEC (MV-OBEC) [16] provide satisfactory concealment, but at the cost of increasing the overhead on the decoder performance.…”

Section: Current Techniquesmentioning

confidence: 99%

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Real time error concealment in H.264 video decoder for embedded devices

Kale¹,

Hampiholi²

2008

2008 2nd International Conference on Internet Multimedia Services Architecture and Applications

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Transmission of compressed video over unreliable network is an interesting topic of research. As compression is inversely proportional to data redundancy. Highly compressed data are hence more susceptible to errors. This paper discusses error recovery and concealment techniques for H.264/AVC Baseline Profile Decoder, where bandwidth, decoder performance and memory are critical constraints for real time implementation. This paper proposes a technique which gives improved perceptual concealment without affecting the decoder performance and its memory requirement. The technique is based on novel algorithm which uses the available features in H.264 standard to perform concealment, with minimal pre-processing. Comparison of the novel algorithm has been made with the error concealment capability of JM 13.2 reference software.

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Section: Discussionmentioning

confidence: 99%

Section: Current Techniquesmentioning

confidence: 99%

Real time error concealment in H.264 video decoder for embedded devices

Kale¹,

Hampiholi²

2008

2008 2nd International Conference on Internet Multimedia Services Architecture and Applications

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“…(2) we determine where the small block may located in frame t using this motion vector information whole-frame loss (12,6) filter. The same way can be used to calculate all pixels in frame t.…”

Section: Whole-frame Loss Concealment With Improved Backward Motion Ementioning

confidence: 99%

Whole-frame Error concealment with improved backward motion estimation for H.264 decoders

Tuo

Jing

Liu

2007

Fourth International Conference on Image and Graphics (ICIG 2007)

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H.264 video compression standard is widely usedin video transmission for telecommunications field, with a higher compression ratio and excellent network adaptability. But it also decreases the performance in anti-interference capabilities. More than one frame pictures of encoding data is stored in a data packet, once the data packet occur errors in transmission, the whole frame image is completely lost, and the next several frames can not be decoded well . Therefore, we must take the decoder error conceal technology to improve the ability of error resilient. This paper presents an error conceal method for whole-frame loss by using improved backward motion estimation. More precise quarter-pixel motion estimation to conceal the un-mapped pixel from previous correct decoded frame to current damaged frame is used to improve the quality of reconstructed frame, and spatial conceal method of distance-weighted average method is used to reduce the blocking-effect. Experiment results show it is effective.

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“…S.Belfore et al proposed an EC algorithm for the whole-frame loss based on multiframe optical flow estimation (CAP) [4]. The algorithm exploits motion vector (MV) information of last received frames and estimates the motion of the lost frame.…”

Section: Releated Workmentioning

confidence: 99%

Multiframe Error Concealment for Whole-Frame Loss in H.264/AVC

Liu

Chen

et al. 2007

2007 IEEE International Conference on Image Processing

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In this paper, we propose a novel error concealment algorithm for the whole-frame loss based on multiframe. In concealing procedure, besides improve the quality of the concealed lost frames, the proposed algorithm also guarantees the quality of the succeeding frames that reference the lost frame in order to control the propagation of errors. Macroblocks in the lost frame are concealed in an appropriate order which is determined by exploiting the information from partly decoded succeeding frames. Experimental results demonstrate that the proposed algorithm not only outperforms previous algorithms in both PSNR evaluation and visual quality of the concealed lost frames, but also minimizes the error propagation.

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An error concealment algorithm for streaming video

Cited by 33 publications

References 6 publications

Real time error concealment in H.264 video decoder for embedded devices

Real time error concealment in H.264 video decoder for embedded devices

Whole-frame Error concealment with improved backward motion estimation for H.264 decoders

Multiframe Error Concealment for Whole-Frame Loss in H.264/AVC

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