发明名称 |
RECORDING MEDIUM HAVING RECORDED THEREON CODED INFORMATION USING PLUS AND/OR MINUS ROUNDING OF IMAGES |
摘要 |
Image decoding method including: receiving an encoded bitstream including information of I and P frames; and executing motion compensation by synthesizing a predicted image of a current frame using motion vector information included in the encoded bitstream and a previously-decoded reference image. The motion compensation includes calculating intensity values at points where no pixels actually exist by bilinear interpolation performable using a positive and negative rounding method; wherein the bilinear interpolation is performed using the rounding method specified by rounding method information included in the encoded bitstream of the current frame when the current frame is a P frame; wherein the rounding method information is included in a header section of the coded information of the current frame and specifies one of a plurality of values. The rounding method information is not received from the encoded bitstream of the current frame when the current frame is an I frame.
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申请公布号 |
US2011007811(A1) |
申请公布日期 |
2011.01.13 |
申请号 |
US20100885947 |
申请日期 |
2010.09.20 |
申请人 |
NAKAYA YUICHIRO |
发明人 |
NAKAYA YUICHIRO |
分类号 |
H04N7/24;H04N7/26;G06T9/00;H04N7/32;H04N7/36;H04N7/46;H04N7/50 |
主分类号 |
H04N7/24 |
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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