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Structural Alignment-Based Temporal Concealment of Packet-Loss in Video   Ajit S. Bopardikar, Odd Inge Hillestad and Andrew Perkis Centre for Quantifiable Quality of Service in Communication Systems Trondheim, Norway.
Publications Based On This Work ,[object Object],[object Object]
This Presentation Is About…. ,[object Object],[object Object]
Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Flowgraph for Video Stream Packetization Video  stream RTP/UDP IP  packets Internet/ Simulation Test net Smart mapping Flows File format
Example: MPEG-2 Bitstream
MPEG-2 Bitstream ,[object Object],[object Object]
Packet-loss Related Artifacts in Block-Based Coding Schemes
Concealment Methods for Packet-Loss Related Errors in Video ,[object Object],[object Object]
Spatial Concealment Methods ,[object Object],[object Object],[object Object],[object Object],[object Object]
Temporal Concealment Methods ,[object Object],[object Object],[object Object],[object Object],[object Object]
Temporal Replacement ,[object Object],[object Object]
Boundary Matching Algorithm ,[object Object],[object Object],[object Object],[object Object],Candidate MB
Proposed Algorithm ,[object Object]
Proposed Algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object]
Simulations: Particulars ,[object Object],[object Object],[object Object],[object Object],[object Object]
Simulations: Results for  Frame 346 of ’Table Tennis’ sequence. Original PL ( 13.84 dB) BMA (28.91 dB) Proposed (36.34 dB)
Simulation Results: PSNR 29.31 25.98 15.72 325 32.93 28.05 14.89 304 Table-tennis 30.47 27.30 14.32 208 28.75 19.99 8.92 67 26.64 19.35 8.96 46 Flower Garden 39.07 24.94 14.02 202 30.17 22.65 13.19 139 29.58 27.13 21.93 72 Mobile 39.42 28.29 10.55 208 31.07 29.35 11.17 120 39.91 38.68 17.53 67 Susie Proposed (dB) BMA  (dB) PL  (dB) Fr. no. Sequence
Conclusions ,[object Object],[object Object],[object Object]

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4 4 bopardikar_concealment

  • 1. Structural Alignment-Based Temporal Concealment of Packet-Loss in Video Ajit S. Bopardikar, Odd Inge Hillestad and Andrew Perkis Centre for Quantifiable Quality of Service in Communication Systems Trondheim, Norway.
  • 2.
  • 3.
  • 4.
  • 5. Flowgraph for Video Stream Packetization Video stream RTP/UDP IP packets Internet/ Simulation Test net Smart mapping Flows File format
  • 7.
  • 8. Packet-loss Related Artifacts in Block-Based Coding Schemes
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.
  • 17. Simulations: Results for Frame 346 of ’Table Tennis’ sequence. Original PL ( 13.84 dB) BMA (28.91 dB) Proposed (36.34 dB)
  • 18. Simulation Results: PSNR 29.31 25.98 15.72 325 32.93 28.05 14.89 304 Table-tennis 30.47 27.30 14.32 208 28.75 19.99 8.92 67 26.64 19.35 8.96 46 Flower Garden 39.07 24.94 14.02 202 30.17 22.65 13.19 139 29.58 27.13 21.93 72 Mobile 39.42 28.29 10.55 208 31.07 29.35 11.17 120 39.91 38.68 17.53 67 Susie Proposed (dB) BMA (dB) PL (dB) Fr. no. Sequence
  • 19.