Optical chromakey field
First Claim
1. Apparatus for causing a video camera to produce a video signal to selectively cue a special effect, comprising:
- transparent means having a front side for placement in the field of view of a video camera, having a back side, and being transparent so as to permit visual sighting from the front side of objects located behind the means; and
illumination means selectively operative to illuminate the transparent means;
whereby the transparent means presents light of a certain color for reception by the video camera selectively causing the video camera to produce a characteristic video signal operative to cue the special effect while permitting a person on-camera in front of the transparent means to see through the transparent means so as to view objects located behind the transparent means.
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Abstract
A method and apparatus for causing a video camera to produce a video signal to selectively cue special effects, comprising an optical chromakey field including a transparent assembly an illumination apparatus. The transparent assembly is placed in the field of view of the video camera. The on-camera talent can see through the transparent assembly to view a monitor or other object located behind the transparent assembly. The illumination apparatus selectively illuminates the transparent assembly. The transparent assembly presents light of a certain color for reception by the video camera. When special effects are selected, the video camera produces a characteristic video signal operative to cue the special effects.
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Citations
17 Claims
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1. Apparatus for causing a video camera to produce a video signal to selectively cue a special effect, comprising:
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transparent means having a front side for placement in the field of view of a video camera, having a back side, and being transparent so as to permit visual sighting from the front side of objects located behind the means; and illumination means selectively operative to illuminate the transparent means; whereby the transparent means presents light of a certain color for reception by the video camera selectively causing the video camera to produce a characteristic video signal operative to cue the special effect while permitting a person on-camera in front of the transparent means to see through the transparent means so as to view objects located behind the transparent means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for causing a video camera to produce a video signal to selectively cue special effects, comprising the steps of:
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positioning a transparent means having a front side in the field of view of a video camera, the transparent means being transparent so as to permit visual sighting from the front side of objects located behind the transparent means; selectively illuminating the transparent means whereby light of a certain color is presented by the transparent means for reception by the video camera; and selectively causing the video camera to produce a characteristic video signal operative to cue special effects while permitting a person on-camera in front of the transparent means to see through the transparent means so as to view objects located behind the transparent means. - View Dependent Claims (14, 15, 16, 17)
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Specification