发明名称 |
VIDEO SIGNAL PROCESSING |
摘要 |
A method of and apparatus for processing video signals to achieve a visual effect corresponding to that which would be achieved if an input two-dimensional image were projected on to a three-dimensional surface is disclosed. A video signal is formed into digitized sample values each having an input pixel address comprising X and Y coordinate values. X and Y scaling multipliers and Z coordinate values corresponding to the respective pixel addresses on the three-dimensional surface to which each of the input pixel addresses will be moved in achieving the effect are stored in a mapping store. Multipliers multiply the X and Y coordinate values of each input pixel address by the corresponding X and Y scaling multipliers, and the resulting scaled X and Y coordinate values and the associated Z coordinate values are supplied to a perspective transformation device to derive the output X and Y coordinate values corresponding to the effect. |
申请公布号 |
DE3665639(D1) |
申请公布日期 |
1989.10.19 |
申请号 |
DE19863665639 |
申请日期 |
1986.04.30 |
申请人 |
SONY CORPORATION |
发明人 |
DAVID, MORGAN WILLIAM AMOS;HEDLEY, DAVID JOHN |
分类号 |
G06T1/00;G06T3/00;G06T15/20;G09G1/16;G09G5/36;H04N5/262;(IPC1-7):G06F15/62 |
主分类号 |
G06T1/00 |
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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