Hybrid DCT/Pixel Domain Architecture for Heterogeneous Video Transcoding
In this paper the pixel domain heterogeneous video transcoder proposed by the authors is implemented in the DCT domain. Consequently, the motion compensation and its inverse and the image down-sampling functions of the pixel domain transcoder are implemented in the frequency domain whilst eliminatin...
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| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | |
| التنسيق: | article |
| منشور في: |
2003
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://hdl.handle.net/11073/21381 |
| الوسوم: |
إضافة وسم
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| _version_ | 1864513438030495744 |
|---|---|
| author | Shanableh, Tamer |
| author2 | Ghanbari, Mohammed |
| author2_role | author |
| author_facet | Shanableh, Tamer Ghanbari, Mohammed |
| author_role | author |
| dc.creator.none.fl_str_mv | Shanableh, Tamer Ghanbari, Mohammed |
| dc.date.none.fl_str_mv | 2003 2021-03-25T07:35:04Z 2021-03-25T07:35:04Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | T. Shanableh, M. Ghanbari, "Hybrid DCT/pixel domain architecture for heterogeneous video transcoding", Signal Processing: Image Communication, Volume 18, Issue 8, 2003, Pages 601-620, ISSN 0923-5965, https://doi.org/10.1016/S0923-5965(03)00055-9. 0923-5965 http://hdl.handle.net/11073/21381 10.1016/S0923-5965(03)00055-9 |
| dc.language.none.fl_str_mv | en_US |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.relation.none.fl_str_mv | https://doi.org/10.1016/S0923-5965(03)00055-9 |
| dc.subject.none.fl_str_mv | compressed domain processing Motion compensation Image converters Video signal processing MPEG video H.263 video |
| dc.title.none.fl_str_mv | Hybrid DCT/Pixel Domain Architecture for Heterogeneous Video Transcoding |
| dc.type.none.fl_str_mv | Peer-Reviewed Postprint info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | In this paper the pixel domain heterogeneous video transcoder proposed by the authors is implemented in the DCT domain. Consequently, the motion compensation and its inverse and the image down-sampling functions of the pixel domain transcoder are implemented in the frequency domain whilst eliminating the DCT and IDCT pairs. Moreover the paper proposes two transcoding architectures. In one, the transcoder is simplified by implementing both its MC-loops in the DCT domain. While in the other, image decimation is realised through a modified inverse transformation of the top-left 4x4 coefficients. The input and output domains of the mentioned decimator render the decoder’s and the encoder’s MC-loops to be in the DCT domain and the pixel-domain respectively. This results in a unique hybrid DCT, pixel domain transcoding architecture. Various methods for accelerating the process of the DCT domain motion compensation are reviewed and classified into lossless and lossy methods. It is shown that both picture quality and performance are enhanced by utilising shared information with successive motion compensated macroblocks. The superiority of the hybrid architecture is then assessed in terms of preserving image quality, feasible functionality and tolerance to lossy acceleration of the DCT domain MC. |
| format | article |
| id | aus_c45106aeb207e2be21314c1013670632 |
| identifier_str_mv | T. Shanableh, M. Ghanbari, "Hybrid DCT/pixel domain architecture for heterogeneous video transcoding", Signal Processing: Image Communication, Volume 18, Issue 8, 2003, Pages 601-620, ISSN 0923-5965, https://doi.org/10.1016/S0923-5965(03)00055-9. 0923-5965 10.1016/S0923-5965(03)00055-9 |
| language_invalid_str_mv | en_US |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/21381 |
| publishDate | 2003 |
| publisher.none.fl_str_mv | Elsevier |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Hybrid DCT/Pixel Domain Architecture for Heterogeneous Video TranscodingShanableh, TamerGhanbari, Mohammedcompressed domain processingMotion compensationImage convertersVideo signal processingMPEG videoH.263 videoIn this paper the pixel domain heterogeneous video transcoder proposed by the authors is implemented in the DCT domain. Consequently, the motion compensation and its inverse and the image down-sampling functions of the pixel domain transcoder are implemented in the frequency domain whilst eliminating the DCT and IDCT pairs. Moreover the paper proposes two transcoding architectures. In one, the transcoder is simplified by implementing both its MC-loops in the DCT domain. While in the other, image decimation is realised through a modified inverse transformation of the top-left 4x4 coefficients. The input and output domains of the mentioned decimator render the decoder’s and the encoder’s MC-loops to be in the DCT domain and the pixel-domain respectively. This results in a unique hybrid DCT, pixel domain transcoding architecture. Various methods for accelerating the process of the DCT domain motion compensation are reviewed and classified into lossless and lossy methods. It is shown that both picture quality and performance are enhanced by utilising shared information with successive motion compensated macroblocks. The superiority of the hybrid architecture is then assessed in terms of preserving image quality, feasible functionality and tolerance to lossy acceleration of the DCT domain MC.Elsevier2021-03-25T07:35:04Z2021-03-25T07:35:04Z2003Peer-ReviewedPostprintinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfT. Shanableh, M. Ghanbari, "Hybrid DCT/pixel domain architecture for heterogeneous video transcoding", Signal Processing: Image Communication, Volume 18, Issue 8, 2003, Pages 601-620, ISSN 0923-5965, https://doi.org/10.1016/S0923-5965(03)00055-9.0923-5965http://hdl.handle.net/11073/2138110.1016/S0923-5965(03)00055-9en_UShttps://doi.org/10.1016/S0923-5965(03)00055-9oai:repository.aus.edu:11073/213812024-08-22T12:07:41Z |
| spellingShingle | Hybrid DCT/Pixel Domain Architecture for Heterogeneous Video Transcoding Shanableh, Tamer compressed domain processing Motion compensation Image converters Video signal processing MPEG video H.263 video |
| status_str | publishedVersion |
| title | Hybrid DCT/Pixel Domain Architecture for Heterogeneous Video Transcoding |
| title_full | Hybrid DCT/Pixel Domain Architecture for Heterogeneous Video Transcoding |
| title_fullStr | Hybrid DCT/Pixel Domain Architecture for Heterogeneous Video Transcoding |
| title_full_unstemmed | Hybrid DCT/Pixel Domain Architecture for Heterogeneous Video Transcoding |
| title_short | Hybrid DCT/Pixel Domain Architecture for Heterogeneous Video Transcoding |
| title_sort | Hybrid DCT/Pixel Domain Architecture for Heterogeneous Video Transcoding |
| topic | compressed domain processing Motion compensation Image converters Video signal processing MPEG video H.263 video |
| url | http://hdl.handle.net/11073/21381 |