By Laurent Blondé (auth.), Yakup Paker PhD, MBCS, CEng, Sylvia Wilbur BA, MSc (eds.)
Recent advancements in laptop visualisation suggest that it's now attainable to mix computer-generated picture sequences with genuine video, in actual time, for broadcast caliber construction. this can not just revolutionise the printed undefined, by means of making "electronic movie units" attainable for instance, but in addition has vital implications for similar fields corresponding to digital fact, multi-media, commercial imaginative and prescient, and scientific photograph processing. This quantity comprises papers from the ecu Workshop on mixed actual and artificial snapshot Processing for Broadcast and Video creation, held in Hamburg, 23-24 November 1994. The papers hide 3 major elements of analysis: undefined, picture research, and photograph synthesis, and contain a number of key contributions from the ecu RACE II supported MONA LISA (MOdelling typical photographs for Synthesis and Animation) undertaking. The ensuing quantity provides a accomplished evaluation of this crucial quarter of analysis, and may be of curiosity to practitioners, researchers, and postgraduate students.
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Extra resources for Image Processing for Broadcast and Video Production: Proceedings of the European Workshop on Combined Real and Synthetic Image Processing for Broadcast and Video Production, Hamburg, 23–24 November 1994
Image, scene description, etc ... ). The Command Tool runs concurrently with the Administration Tool. It may run on the same or on a different X Window/OSF Motif-based workstation. Several Command Tools are allowed to share the processor pool. Their requests, therefore, are ordered before executed on the processor pool. 1 Description The Administration Tool (figure 5) consists of several entities: an array of processor buttons, a processor status window, three selection lists (administration commands, parallel servers (SAPS library), and active servers (actually running on the parallel machine)), a message area and a set of operation buttons.
From an actor to a background object behind the actor 4. From a background object to an actor behind it. 30 Modern chroma-key generators provide already a soft key signal. This softness can be used in case one and three for providing a soft Z-key signal. For case two and four this does not help since the transition is caused by a distance change between foreground and background. To get soft edges for these transitions as well it's necessary to detect transitions of that type and to perform a local 'filtering' in some way.
The two dashed lines show the results obtained by running the benchmarks on MIPS R3000 and MIPS R4000 based workstations. 2 MFops and 15 MFlops respectively. The data for the benchmarks consisted of a PAL resolution (576x720 pixels) image sequence of 24 frames, and the experiments have been repeated using 0, 3, 6, and 9 neighbourhood cells in the computations respectively. 80 ;:; h 40~----~-----+--~~~~~~----~ o 3 Number of Neighborhood Cells 6 9 Figure 8. Benchmarks for Local Neighborhood Operations As it can be observed in the figure, the increase in the rate of access to the memory caused by the increase in the number of neighbours used in the filter causes a degradation of performance; this degradation is especially very high when both onboard DSPs are sharing the DRAM.