发明名称 |
MOVING IMAGE PREDICTION ENCODER, MOVING IMAGE PREDICTION ENCODING METHOD, MOVING IMAGE PREDICTION DECODER AND MOVING IMAGE PREDICTION DECODING METHOD |
摘要 |
PROBLEM TO BE SOLVED: To solve the problem that when extrapolation processing for in-screen prediction is performed in a reference sample containing noise generated in a block boundary, the effect of block noise propagates to an intra-block prediction signal, causing pseudo-contour-shaped noise to occur in a reproduction signal.SOLUTION: A decoder comprises: decoding means for decoding an intra-prediction mode which shows an in-screen prediction method of an object block and compression data of a residual signal; prediction signal generating means for generating an in-screen prediction signal from the intra-prediction mode and a reproduced reference sample of an adjacent block; residual signal restoring means for restoring the reproduced residual signal of the object block; and block storage means for restoring and storing a pixel signal of the object block. The prediction signal generating means acquires the reference sample from the reproduced block at a periphery of the stored object block and performs interpolation processing between key reference samples for generating an interpolated reference sample, extrapolates the interpolated reference sample in response to the intra-prediction mode and generates in-screen prediction.SELECTED DRAWING: Figure 3 |
申请公布号 |
JP2016136786(A) |
申请公布日期 |
2016.07.28 |
申请号 |
JP20160090663 |
申请日期 |
2016.04.28 |
申请人 |
NTT DOCOMO INC |
发明人 |
SUZUKI YOSHINORI;BUN CHUNSEN;TANG TIO KEN |
分类号 |
H04N19/593;H04N19/59;H04N19/82 |
主分类号 |
H04N19/593 |
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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