Date post: | 17-Jun-2015 |
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Science |
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2. SmallcountryLA basinLarge city101210111010109Lawrence Livermore National Laboratory LLNL-PRES-5592522City block1GB/min 1TB/min 1PB/min10810710666Mpix 2005 => Army,AFDOE2007DOE2004DOE 4Mpix,2Hz, 2003Small cityMIT LL 2Hz,2009DARPA 1.8Gpix, 10Hz,2010HDTVm2 = # pixelsLLNL-led wide area surveillance camera development trajectory 3. Lawrence Livermore National Laboratory LLNL-PRES-559252Constant Hawk ~200 Mpix/sec~25 sq. km at ~ 0.5m GSD~100 Mbps Objective:Video analysis at high resolution over entire field ofregard, for anomaly detection and profiling Challenges: Limited flight/ground storage Poor signal strength Minimal platform computing resources Low communication bandwidth to ground 10x re-useof background80 backgroundframes per quadrantcompress to 4 cubiccontrol images: 20xreductionStandard encoderscompress 10x spatially