Patent ID: 6621500
Filing Date: 2003-09-16
Classification: G06F,G06T,G09G,H04N

Abstract:
A method for producing a composite digital video data stream, the composite digital video data stream containing pixel data corresponding to an image to be rendered, said method comprising:receiving multiple digital video data streams, a first of the multiple digital video data streams containing processed pixel data corresponding to at least a portion of the image to be rendered, a second of the multiple digital video data streams containing processed pixel data corresponding to at least a portion of the image to be rendered and a chroma-key value associated with at least some of the processed pixel data; and combining the multiple digital video data streams into the composite digital video data stream by referencing the chroma-key values; selectively providing an output composite video data stream as a stereo video data stream; providing a left channel and right channel; wherein selectively providing the output composite video data stream as a stereo video data stream comprises: allocating pixel data corresponding to each of the multiple digital video data streams to the left channel and the right channel based upon the chroma-key values of the pixel data; wherein providing a left channel and right channel comprises: providing a first buffer and a second buffer for the left channel; providing a first buffer and a second buffer for the right channel; and wherein the step of allocating pixel data comprises: allocating pixel data corresponding to each of the multiple digital video data streams to the first buffer and the second buffer of each of the channels based upon the chroma-key values of the pixel data.