| 摘要 |
<p>Apparatus for storing a video signal includes means for repeatedly determining a portion of the picture area which contains moving information. Only the portion of the video signal which corresponds to this area containing moving information is then stored. The video signal comprises luminance and chrominance components and may have an associated matte signal. The apparatus includes means for recording the luminance and chrominance components and the matte in synchronism on a common record medium. A camera produces a video signal at an output and means for recording this signal is also provided. The camera also includes means for detecting the location and/or orientation of the camera and generating signals dependent thereon. These signals are recorded in synchronism with the video signal. Apparatus for generating a video signal is used to provide a composite picture in combination with a video signal which has camera location and/or orientation data associated with it. The system may include means for computing objects to be included in the video signal and will also include means for producing a matte associated with that computed object for each pixel which that object intersects.</p> |
