发明名称 |
VIDEO KEY GLOW AND BORDER GENERATOR |
摘要 |
<p>A method and apparatus is disclosed which provides for the placement of a border video signal around a selected object in a video image. A video image of the selected object is first inserted into a video image of a selected border video signal in a video mixing process by use of a key signal defining the selected object. The key signal is further processed to transform the step transitions associated therewith between the zero and full insert states into non-step transitions, The transformed key signal is thereafter used to control a subsequent mixing of the resulting image of the selected object inserted into the video image of the border video signal with a background image to produce a composite video image.</p> |
申请公布号 |
CA1255789(A) |
申请公布日期 |
1989.06.13 |
申请号 |
CA19860513499 |
申请日期 |
1986.07.10 |
申请人 |
GRASS VALLEY GROUP, INC. (THE) |
发明人 |
LAKE, DAVID E., JR.;MILLER, ROBERT L. |
分类号 |
H04N5/272;H04N5/262;H04N9/74;(IPC1-7):H04N5/262 |
主分类号 |
H04N5/272 |
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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