Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 장의선 | - |
dc.date.accessioned | 2017-11-02T05:10:23Z | - |
dc.date.available | 2017-11-02T05:10:23Z | - |
dc.date.issued | 2016-01 | - |
dc.identifier.citation | IET IMAGE PROCESSING, v. 10, NO 2, Page. 89-100 | en_US |
dc.identifier.issn | 1751-9659 | - |
dc.identifier.issn | 1751-9667 | - |
dc.identifier.uri | https://www.crossref.org/iPage?doi=10.1049%2Fiet-ipr.2015.0036 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/30440 | - |
dc.description.abstract | The latest video coding standards, including Moving Picture Experts Group-4 (MPEG-4) advanced video coding (AVC)/H.264 and high-efficiency video coding (HEVC), use a discrete cosine transform (DCT) process as the core for compression efficiency, sacrificing the computational complexity at decoder. There have been a number of attempts to reduce the complexity of inverse DCT (IDCT). Butterfly-based factorisation remains the most commonly used method for such a reduction. In this study, the authors propose a zero (Z) coefficient-aware fast butterfly-based IDCT algorithm for video decoding. They focus on a reduction in the computational complexity of the butterfly-based 8 x 8 IDCT by removing the unnecessary computations of one-dimensional (1D) IDCT kernels, and adaptively applying IDCT kernels based on the number of non-Z DCT coefficients to speed-up 1D data. Their experimental results show that the average operation numbers using the proposed IDCT is approximately half that for the 8 x 8 IDCT implemented in the MPEG-4 AVC/H.264 and HEVC reference software. The improved computational complexity of the proposed method is demonstrated by measuring the running time, which requires only one-half of the IDCT time using the reference software. | en_US |
dc.description.sponsorship | This work was supported by the Industrial Strategic Technology Development Program (10047438, Development and International Standardization for MPEG Type-1 Standard Technology) funded by the Ministry of Trade, Industry & Energy (MOTIE) of Korea. | en_US |
dc.language.iso | en | en_US |
dc.publisher | INST ENGINEERING TECHNOLOGY-IET | en_US |
dc.subject | video coding | en_US |
dc.subject | inverse transforms | en_US |
dc.subject | discrete cosine transforms | en_US |
dc.subject | data compression | en_US |
dc.subject | computational complexity | en_US |
dc.subject | zero coefficient-aware fast butterfly-based IDCT algorithm | en_US |
dc.subject | inverse discrete cosine transform algorithm | en_US |
dc.subject | Moving Picture Experts Group-4 advanced video coding | en_US |
dc.subject | MPEG-4 | en_US |
dc.subject | H.264 | en_US |
dc.subject | high-efficiency video coding | en_US |
dc.subject | HEVC reference software | en_US |
dc.subject | inverse DCT algorithm | en_US |
dc.subject | compression efficiency | en_US |
dc.subject | computational complexity reduction | en_US |
dc.subject | butterfly-based factorisation | en_US |
dc.subject | 1D IDCT kernels | en_US |
dc.subject | non Z DCT coefficients | en_US |
dc.title | Zero coefficient-aware fast butterfly-based inverse discrete cosine transform algorithm | en_US |
dc.type | Article | en_US |
dc.relation.no | 2 | - |
dc.relation.volume | 10 | - |
dc.identifier.doi | 10.1049/iet-ipr.2015.0036 | - |
dc.relation.page | 89-100 | - |
dc.relation.journal | IET IMAGE PROCESSING | - |
dc.contributor.googleauthor | Park, Sang-hyo | - |
dc.contributor.googleauthor | Choi, Kiho | - |
dc.contributor.googleauthor | Jang, Euee S. | - |
dc.relation.code | 2016003504 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF COMPUTER SCIENCE | - |
dc.identifier.pid | esjang | - |
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