The H.263 codec is an efficient way to stream variable bit-rate video sequences. This letter proposes that, for equivalent bandwidth and frame rate, a two-slice packetization scheme results in superior peak signal-to-noise ratio, rather than the conventional one-slice scheme, and that constant inter-packet gap rather than 'bursty' delivery is preferable.
The use of order statistics to arrive at a scheduling regime is shown to be applicable to data farms running on second-generation parallel processors. Uniform and decreasing task-size scheduling regimes are examined. Experimental timings and a further simulation for large-scale eeects were used to exercise the scheduling regimes. The paper also considers a… (More)
Managing the complexity of large-scale environments is now a regular challenge in feature film visual effects. We will show how decoupling the representation of our layout from our geometry allowed us to improve our environment pipeline, and ultimately deliver the largest environments that Double Negative has ever built.