发明名称 |
PICTURE ENCODING DEVICE AND PICTURE DECODING DEVICE |
摘要 |
PURPOSE:To obtain a sufficient prediction picture and to improve encoding efficiency by dividing a square block into two triangles and adaptively selecting a division line for the triangle, which generates the prediction picture by means of the shape conversion of the respective triangles, at every square block. CONSTITUTION:A motion estimating part 1 estimates the motion of a grid point and the motion vectors of the respective grid points are obtained. A square block bi-seating part 3 divides the square block into the two triangles by a previously fixed method. An affine transformation deciding part 5 obtains the two parameter of affine transformation for one square block. An adaption selecting part 2 is the part adaptively selecting the division line of the square block at every square block. The square block bi-seating part 3 divides the square block in accordance with the selected division line with the division line selected by the adaption selecting part 2 and the motion vector as inputs. |
申请公布号 |
JPH0846972(A) |
申请公布日期 |
1996.02.16 |
申请号 |
JP19940178514 |
申请日期 |
1994.07.29 |
申请人 |
SHARP CORP |
发明人 |
KATADA HIROYUKI;KUSAO HIROSHI;AONO TOMOKO |
分类号 |
H04N7/32;G06T9/00;H03M7/38;(IPC1-7):H04N7/32 |
主分类号 |
H04N7/32 |
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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