发明名称 |
SCALABLE VIDEO ENCODING METHOD AND APPARATUS USING IMAGE UP-SAMPLING IN CONSIDERATION OF PHASE-SHIFT AND SCALABLE VIDEO DECODING METHOD AND APPARATUS |
摘要 |
Provided is a method of determining an up-sampling filter to accurately interpolate a sample value for each sampling position according to an up-sampling ratio for scalable video encoding and decoding. An up-sampling method for scalable video encoding includes determining a phase shift between a pixel of a low resolution image and a pixel of a high resolution image based on a scaling factor between the high resolution image and the low resolution image; selecting at least one filter coefficient set corresponding to the determined phase shift from filter coefficient data comprising filter coefficient sets corresponding to phase shifts; generating the high resolution image by performing filtering on the low resolution image by using the selected at least one filter coefficient set; and generating an improvement layer bitstream comprising high resolution encoding information generated by performing encoding on the high resolution image and up-sampling filter information indicating the determined phase shift. |
申请公布号 |
EP2942963(A4) |
申请公布日期 |
2016.08.17 |
申请号 |
EP20140735149 |
申请日期 |
2014.01.06 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
ALSHINA, ELENA;ALSHIN, ALEXANDER |
分类号 |
H04N19/187;H04N19/117;H04N19/182;H04N19/186;H04N19/30;H04N19/59;H04N19/82 |
主分类号 |
H04N19/187 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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