Spatial temporal concealment of lost blocks in coded video
When errors are introduced into a compressed video bit-stream, blocks of pixels are lost. The decoder attempts to conceal this loss to maximize the displayed picture quality. Previous approaches use either surrounding pixels in the current picture to conceal lost blocks (spatial concealment) or pixe...
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| container_end_page | 481 vol.3 |
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| creator | Lee, W.S. Frater, M.R. Pickering, M.R. Arnold, J.E. |
| description | When errors are introduced into a compressed video bit-stream, blocks of pixels are lost. The decoder attempts to conceal this loss to maximize the displayed picture quality. Previous approaches use either surrounding pixels in the current picture to conceal lost blocks (spatial concealment) or pixels from the previous picture (temporal concealment). We show how joint spatial temporal concealment can be implemented to provide higher quality concealment. To do that we model video sequences as mixtures of simple Markov processes and utilise the model for concealment of portions of video which are missing. This model allows us to combine spatial and temporal information in a seamless manner when performing concealment on the missing blocks. |
| doi_str_mv | 10.1109/ICIP.1998.999036 |
| format | Conference Proceeding |
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The decoder attempts to conceal this loss to maximize the displayed picture quality. Previous approaches use either surrounding pixels in the current picture to conceal lost blocks (spatial concealment) or pixels from the previous picture (temporal concealment). We show how joint spatial temporal concealment can be implemented to provide higher quality concealment. To do that we model video sequences as mixtures of simple Markov processes and utilise the model for concealment of portions of video which are missing. 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This model allows us to combine spatial and temporal information in a seamless manner when performing concealment on the missing blocks.</description><subject>Decoding</subject><subject>Educational institutions</subject><subject>Markov processes</subject><subject>Propagation losses</subject><subject>Random variables</subject><subject>Streaming media</subject><subject>Video coding</subject><subject>Video compression</subject><subject>Video sequences</subject><subject>Video signal processing</subject><isbn>0818688211</isbn><isbn>9780818688218</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1998</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotj01LxDAURQMiqOPsxVX-QOt7SZMm7qT4URhQUNdDmrxAtG1KWwT_vYXxbu6BCwcuYzcIJSLYu7Zp30q01pTWWpD6jF2BQaONEYgXbL8sX7DFiLq29SW7f5_cmlzPVxqmPG_g8-jJ9QONK8-R93lZeddn_73wNG5roMB_UqB8zc6j6xfa__eOfT49fjQvxeH1uW0eDkVCqNYixqBUXXWVB-9j6ILyEtFEDKQ6BS7GurIQwIGPFUnTCYdaOyO1BCGlkDt2e_ImIjpOcxrc_Hs8vZN_xZBFdw</recordid><startdate>1998</startdate><enddate>1998</enddate><creator>Lee, W.S.</creator><creator>Frater, M.R.</creator><creator>Pickering, M.R.</creator><creator>Arnold, J.E.</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>1998</creationdate><title>Spatial temporal concealment of lost blocks in coded video</title><author>Lee, W.S. ; Frater, M.R. ; Pickering, M.R. ; Arnold, J.E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i104t-ffd5574b4c0ccfdbd5c3118f1de5b50aff7490d0a0cf4e38b2a166a8363023323</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Decoding</topic><topic>Educational institutions</topic><topic>Markov processes</topic><topic>Propagation losses</topic><topic>Random variables</topic><topic>Streaming media</topic><topic>Video coding</topic><topic>Video compression</topic><topic>Video sequences</topic><topic>Video signal processing</topic><toplevel>online_resources</toplevel><creatorcontrib>Lee, W.S.</creatorcontrib><creatorcontrib>Frater, M.R.</creatorcontrib><creatorcontrib>Pickering, M.R.</creatorcontrib><creatorcontrib>Arnold, J.E.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE/IET Electronic Library</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Lee, W.S.</au><au>Frater, M.R.</au><au>Pickering, M.R.</au><au>Arnold, J.E.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Spatial temporal concealment of lost blocks in coded video</atitle><btitle>Proceedings 1998 International Conference on Image Processing. ICIP98 (Cat. No.98CB36269)</btitle><stitle>ICIP</stitle><date>1998</date><risdate>1998</risdate><spage>477</spage><epage>481 vol.3</epage><pages>477-481 vol.3</pages><isbn>0818688211</isbn><isbn>9780818688218</isbn><abstract>When errors are introduced into a compressed video bit-stream, blocks of pixels are lost. The decoder attempts to conceal this loss to maximize the displayed picture quality. Previous approaches use either surrounding pixels in the current picture to conceal lost blocks (spatial concealment) or pixels from the previous picture (temporal concealment). We show how joint spatial temporal concealment can be implemented to provide higher quality concealment. To do that we model video sequences as mixtures of simple Markov processes and utilise the model for concealment of portions of video which are missing. This model allows us to combine spatial and temporal information in a seamless manner when performing concealment on the missing blocks.</abstract><pub>IEEE</pub><doi>10.1109/ICIP.1998.999036</doi></addata></record> |
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| identifier | ISBN: 0818688211 |
| ispartof | Proceedings 1998 International Conference on Image Processing. ICIP98 (Cat. No.98CB36269), 1998, p.477-481 vol.3 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Decoding Educational institutions Markov processes Propagation losses Random variables Streaming media Video coding Video compression Video sequences Video signal processing |
| title | Spatial temporal concealment of lost blocks in coded video |
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