Adaptive Interpolation Filter Using Correlation for Inter Prediction
In video coding, interpolation filters play an important role in motion-compensated prediction. In Versatile Video Coding (VVC), adaptive motion vector resolution (AMVR) that makes use of fractional samples by 8-tap Discrete Cosine Transform-based interpolation filter (DCT-IF), 7-tap DCT-IF, or 6-ta...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10323466/ |
| _version_ | 1797448867589914624 |
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| author | Min-Kyeong Choi Yung-Lyul Lee |
| author_facet | Min-Kyeong Choi Yung-Lyul Lee |
| author_sort | Min-Kyeong Choi |
| collection | DOAJ |
| description | In video coding, interpolation filters play an important role in motion-compensated prediction. In Versatile Video Coding (VVC), adaptive motion vector resolution (AMVR) that makes use of fractional samples by 8-tap Discrete Cosine Transform-based interpolation filter (DCT-IF), 7-tap DCT-IF, or 6-tap Smoothing interpolation filter (SIF) was adopted. This paper proposes an adaptive interpolation filter to improve motion-compensated prediction. A 12-tap DCT-IF is designed to improve the filter response in the high frequency range and applied by a proposed filter selection method using correlation that considers the frequency characteristics of reference block found from motion estimation. Experimental results show that the proposed method achieved the overall Bjøntegaard Delta (BD)-rate gains of -0.27%, -0.12%, and -0.01% for Y, Cb, and Cr components, respectively, under the Random Access (RA) configuration compared with VVC. |
| first_indexed | 2024-03-09T14:16:38Z |
| format | Article |
| id | doaj.art-5664c77177424707aa9476a814b96165 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-09T14:16:38Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-5664c77177424707aa9476a814b961652023-11-29T00:01:21ZengIEEEIEEE Access2169-35362023-01-011113101713102310.1109/ACCESS.2023.333504310323466Adaptive Interpolation Filter Using Correlation for Inter PredictionMin-Kyeong Choi0https://orcid.org/0000-0001-5335-8012Yung-Lyul Lee1https://orcid.org/0000-0003-2709-8282Department of Computer Engineering, Sejong University, Seoul, South KoreaDepartment of Computer Engineering, Sejong University, Seoul, South KoreaIn video coding, interpolation filters play an important role in motion-compensated prediction. In Versatile Video Coding (VVC), adaptive motion vector resolution (AMVR) that makes use of fractional samples by 8-tap Discrete Cosine Transform-based interpolation filter (DCT-IF), 7-tap DCT-IF, or 6-tap Smoothing interpolation filter (SIF) was adopted. This paper proposes an adaptive interpolation filter to improve motion-compensated prediction. A 12-tap DCT-IF is designed to improve the filter response in the high frequency range and applied by a proposed filter selection method using correlation that considers the frequency characteristics of reference block found from motion estimation. Experimental results show that the proposed method achieved the overall Bjøntegaard Delta (BD)-rate gains of -0.27%, -0.12%, and -0.01% for Y, Cb, and Cr components, respectively, under the Random Access (RA) configuration compared with VVC.https://ieeexplore.ieee.org/document/10323466/Video codingversatile video coding (VVC)motion-compensated predictioninterpolation filterinter predictionadaptive motion vector resolution (AMVR) |
| spellingShingle | Min-Kyeong Choi Yung-Lyul Lee Adaptive Interpolation Filter Using Correlation for Inter Prediction IEEE Access Video coding versatile video coding (VVC) motion-compensated prediction interpolation filter inter prediction adaptive motion vector resolution (AMVR) |
| title | Adaptive Interpolation Filter Using Correlation for Inter Prediction |
| title_full | Adaptive Interpolation Filter Using Correlation for Inter Prediction |
| title_fullStr | Adaptive Interpolation Filter Using Correlation for Inter Prediction |
| title_full_unstemmed | Adaptive Interpolation Filter Using Correlation for Inter Prediction |
| title_short | Adaptive Interpolation Filter Using Correlation for Inter Prediction |
| title_sort | adaptive interpolation filter using correlation for inter prediction |
| topic | Video coding versatile video coding (VVC) motion-compensated prediction interpolation filter inter prediction adaptive motion vector resolution (AMVR) |
| url | https://ieeexplore.ieee.org/document/10323466/ |
| work_keys_str_mv | AT minkyeongchoi adaptiveinterpolationfilterusingcorrelationforinterprediction AT yunglyullee adaptiveinterpolationfilterusingcorrelationforinterprediction |