A Discrete Tchebichef Transform Approximation for Image and Video Coding
In this letter, we introduce a low-complexity approximation for the discrete Tchebichef transform (DTT). The proposed forward and inverse transforms are multiplication-free and require a reduced number of additions and bit-shifting operations. Numerical compression simulations demonstrate the effici...
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| Vydané v: | IEEE signal processing letters Ročník 22; číslo 8; s. 1137 - 1141 |
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| Hlavní autori: | , , , , |
| Médium: | Journal Article |
| Jazyk: | English |
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IEEE
01.08.2015
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| ISSN: | 1070-9908, 1558-2361 |
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| Abstract | In this letter, we introduce a low-complexity approximation for the discrete Tchebichef transform (DTT). The proposed forward and inverse transforms are multiplication-free and require a reduced number of additions and bit-shifting operations. Numerical compression simulations demonstrate the efficiency of the proposed transform for image and video coding. Furthermore, Xilinx Virtex-6 FPGA based hardware realization shows 44.9% reduction in dynamic power consumption and 64.7% lower area when compared to the literature. |
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| AbstractList | In this letter, we introduce a low-complexity approximation for the discrete Tchebichef transform (DTT). The proposed forward and inverse transforms are multiplication-free and require a reduced number of additions and bit-shifting operations. Numerical compression simulations demonstrate the efficiency of the proposed transform for image and video coding. Furthermore, Xilinx Virtex-6 FPGA based hardware realization shows 44.9% reduction in dynamic power consumption and 64.7% lower area when compared to the literature. |
| Author | Kulasekera, Sunera Cintra, Renato J. Madanayake, Arjuna Bayer, Fábio M. Oliveira, Paulo A. M. |
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| SubjectTerms | Approximate DTT Approximation algorithms Approximation methods Complexity theory Discrete cosine transforms fast algorithms image and video coding Image coding Signal processing algorithms |
| Title | A Discrete Tchebichef Transform Approximation for Image and Video Coding |
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