Video Coding With Low-Complexity Directional Adaptive Interpolation Filters
A novel adaptive interpolation filter structure for video coding with motion-compensated prediction is presented in this letter. The proposed scheme uses an independent directional adaptive interpolation filter for each sub-pixel location. The Wiener interpolation filter coefficients are computed an...
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| Veröffentlicht in: | IEEE transactions on circuits and systems for video technology 2009-08, Vol.19 (8), p.1239-1243 |
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| container_title | IEEE transactions on circuits and systems for video technology |
| container_volume | 19 |
| creator | Rusanovskyy, D. Ugur, K. Hallapuro, A. Lainema, J. Gabbouj, M. |
| description | A novel adaptive interpolation filter structure for video coding with motion-compensated prediction is presented in this letter. The proposed scheme uses an independent directional adaptive interpolation filter for each sub-pixel location. The Wiener interpolation filter coefficients are computed analytically for each inter-coded frame at the encoder side and transmitted to the decoder. Experimental results show that the proposed method achieves up to 1.1 dB coding gain and a 15% average bit-rate reduction for high-resolution video materials compared to the standard nonadaptive interpolation scheme of H.264/AVC, while requiring 36% fewer arithmetic operations for interpolation. The proposed interpolation can be implemented in exactly 16-bit arithmetic, thus it can have important use-cases in mobile multimedia environments where the computational resources are severely constrained. |
| doi_str_mv | 10.1109/TCSVT.2009.2022708 |
| format | Article |
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The proposed scheme uses an independent directional adaptive interpolation filter for each sub-pixel location. The Wiener interpolation filter coefficients are computed analytically for each inter-coded frame at the encoder side and transmitted to the decoder. Experimental results show that the proposed method achieves up to 1.1 dB coding gain and a 15% average bit-rate reduction for high-resolution video materials compared to the standard nonadaptive interpolation scheme of H.264/AVC, while requiring 36% fewer arithmetic operations for interpolation. 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The proposed scheme uses an independent directional adaptive interpolation filter for each sub-pixel location. The Wiener interpolation filter coefficients are computed analytically for each inter-coded frame at the encoder side and transmitted to the decoder. Experimental results show that the proposed method achieves up to 1.1 dB coding gain and a 15% average bit-rate reduction for high-resolution video materials compared to the standard nonadaptive interpolation scheme of H.264/AVC, while requiring 36% fewer arithmetic operations for interpolation. 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The proposed scheme uses an independent directional adaptive interpolation filter for each sub-pixel location. The Wiener interpolation filter coefficients are computed analytically for each inter-coded frame at the encoder side and transmitted to the decoder. Experimental results show that the proposed method achieves up to 1.1 dB coding gain and a 15% average bit-rate reduction for high-resolution video materials compared to the standard nonadaptive interpolation scheme of H.264/AVC, while requiring 36% fewer arithmetic operations for interpolation. The proposed interpolation can be implemented in exactly 16-bit arithmetic, thus it can have important use-cases in mobile multimedia environments where the computational resources are severely constrained.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TCSVT.2009.2022708</doi><tpages>5</tpages></addata></record> |
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| subjects | Adaptive filters Applied sciences Arithmetic Automatic voltage control Circuit properties Coders Coding Computation Decoding Detection, estimation, filtering, equalization, prediction Electric, optical and optoelectronic circuits Electronic circuits Electronics Encoders Exact sciences and technology Frequency filters Gain Image processing Information, signal and communications theory Interpolation Mobile computing Motion estimation motion-compensation Position (location) Reduction Signal and communications theory Signal convertors Signal processing Signal, noise Telecommunications and information theory Video coding Wiener filter |
| title | Video Coding With Low-Complexity Directional Adaptive Interpolation Filters |
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