The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Dengan aplikasi Internet dan rangkaian wayarles di mana-mana, komunikasi video H.264 menjadi semakin biasa. Walau bagaimanapun, disebabkan pengekodan ramalan yang cekap tinggi dan pengekodan entropi panjang berubah-ubah, ia lebih sensitif kepada ralat penghantaran. Skim penyembunyian ralat (EC) semasa, yang menggunakan korelasi spatial dan temporal untuk menyembunyikan wilayah yang rosak, menghasilkan artifak sempadan yang tidak berpuas hati. Dalam kertas ini, mula-mula kami mencadangkan skim penyembunyian ralat saiz blok berubah (VBSEC) yang diilhamkan oleh anggaran gerakan saiz blok berubah (VBSME) dalam H.264. Skim ini menyediakan empat mod EC dan empat sekatan sub-blok. Keseluruhan blok makro (MB) yang rosak akan dibahagikan kepada saiz blok berubah secara adaptif mengikut gerakan sebenar. Vektor gerakan (MV) yang lebih tepat akan diramalkan untuk setiap sub-blok. Kemudian skim penghalusan MV (MVR) dicadangkan untuk memperhalusi MV sub-blok heterogen dengan menggunakan algoritma carian tiga langkah (TSS) secara adaptif. Kedua-dua VBSEC dan MVR adalah berdasarkan algoritma pemadanan sempadan spatio-temporal arah kami (DSTBMA). Dengan menggunakan skim ini, kita boleh membina semula MB yang rosak dalam rangka antara dengan lebih tepat. Keputusan eksperimen menunjukkan bahawa skim cadangan kami boleh memperoleh kualiti EC objektif dan subjektif yang lebih baik, masing-masing berbanding dengan algoritma pemadanan sempadan (BMA) yang diguna pakai dalam perisian rujukan JM11.0, algoritma pemadanan sempadan spatio-temporal (STBMA) dan kaedah EC setanding yang lain .
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Salinan
Lei WANG, Jun WANG, Satoshi GOTO, Takeshi IKENAGA, "Variable Block Size Motion Vector Retrieval Schemes for H.264 Inter Frame Error Concealment" in IEICE TRANSACTIONS on Fundamentals,
vol. E91-A, no. 10, pp. 2945-2953, October 2008, doi: 10.1093/ietfec/e91-a.10.2945.
Abstract: With the ubiquitous application of Internet and wireless networks, H.264 video communication becomes more and more common. However, due to the high-efficiently predictive coding and the variable length entropy coding, it is more sensitive to transmission errors. The current error concealment (EC) scheme, which utilizes the spatial and temporal correlations to conceal the corrupted region, produces unsatisfied boundary artifacts. In this paper, first we propose variable block size error concealment (VBSEC) scheme inspired by variable block size motion estimation (VBSME) in H.264. This scheme provides four EC modes and four sub-block partitions. The whole corrupted macro-block (MB) will be divided into variable block size adaptively according to the actual motion. More precise motion vectors (MV) will be predicted for each sub-block. Then MV refinement (MVR) scheme is proposed to refine the MV of the heterogeneous sub-block by utilizing three step search (TSS) algorithm adaptively. Both VBSEC and MVR are based on our directional spatio-temporal boundary matching algorithm (DSTBMA). By utilizing these schemes, we can reconstruct the corrupted MB in the inter frame more accurately. The experimental results show that our proposed scheme can obtain better objective and subjective EC quality, respectively compared with the boundary matching algorithm (BMA) adopted in the JM11.0 reference software, spatio-temporal boundary matching algorithm (STBMA) and other comparable EC methods.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e91-a.10.2945/_p
Salinan
@ARTICLE{e91-a_10_2945,
author={Lei WANG, Jun WANG, Satoshi GOTO, Takeshi IKENAGA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Variable Block Size Motion Vector Retrieval Schemes for H.264 Inter Frame Error Concealment},
year={2008},
volume={E91-A},
number={10},
pages={2945-2953},
abstract={With the ubiquitous application of Internet and wireless networks, H.264 video communication becomes more and more common. However, due to the high-efficiently predictive coding and the variable length entropy coding, it is more sensitive to transmission errors. The current error concealment (EC) scheme, which utilizes the spatial and temporal correlations to conceal the corrupted region, produces unsatisfied boundary artifacts. In this paper, first we propose variable block size error concealment (VBSEC) scheme inspired by variable block size motion estimation (VBSME) in H.264. This scheme provides four EC modes and four sub-block partitions. The whole corrupted macro-block (MB) will be divided into variable block size adaptively according to the actual motion. More precise motion vectors (MV) will be predicted for each sub-block. Then MV refinement (MVR) scheme is proposed to refine the MV of the heterogeneous sub-block by utilizing three step search (TSS) algorithm adaptively. Both VBSEC and MVR are based on our directional spatio-temporal boundary matching algorithm (DSTBMA). By utilizing these schemes, we can reconstruct the corrupted MB in the inter frame more accurately. The experimental results show that our proposed scheme can obtain better objective and subjective EC quality, respectively compared with the boundary matching algorithm (BMA) adopted in the JM11.0 reference software, spatio-temporal boundary matching algorithm (STBMA) and other comparable EC methods.},
keywords={},
doi={10.1093/ietfec/e91-a.10.2945},
ISSN={1745-1337},
month={October},}
Salinan
TY - JOUR
TI - Variable Block Size Motion Vector Retrieval Schemes for H.264 Inter Frame Error Concealment
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2945
EP - 2953
AU - Lei WANG
AU - Jun WANG
AU - Satoshi GOTO
AU - Takeshi IKENAGA
PY - 2008
DO - 10.1093/ietfec/e91-a.10.2945
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E91-A
IS - 10
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - October 2008
AB - With the ubiquitous application of Internet and wireless networks, H.264 video communication becomes more and more common. However, due to the high-efficiently predictive coding and the variable length entropy coding, it is more sensitive to transmission errors. The current error concealment (EC) scheme, which utilizes the spatial and temporal correlations to conceal the corrupted region, produces unsatisfied boundary artifacts. In this paper, first we propose variable block size error concealment (VBSEC) scheme inspired by variable block size motion estimation (VBSME) in H.264. This scheme provides four EC modes and four sub-block partitions. The whole corrupted macro-block (MB) will be divided into variable block size adaptively according to the actual motion. More precise motion vectors (MV) will be predicted for each sub-block. Then MV refinement (MVR) scheme is proposed to refine the MV of the heterogeneous sub-block by utilizing three step search (TSS) algorithm adaptively. Both VBSEC and MVR are based on our directional spatio-temporal boundary matching algorithm (DSTBMA). By utilizing these schemes, we can reconstruct the corrupted MB in the inter frame more accurately. The experimental results show that our proposed scheme can obtain better objective and subjective EC quality, respectively compared with the boundary matching algorithm (BMA) adopted in the JM11.0 reference software, spatio-temporal boundary matching algorithm (STBMA) and other comparable EC methods.
ER -