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DTSTART:20150329T030000
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DTSTART:20141026T020000
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DTSTAMP:20260501T153506Z
UID:53ec671d8ccba451801949@ist.ac.at
DTSTART:20150316T163000
DTEND:20150316T173000
DESCRIPTION:Speaker: Bill Freeman\nAbstract: We have developed a "motion mi
 croscope" to visualize small motions by synthesizing a video with the desi
 red motions amplified. The project began as an algorithm to amplify small 
 color changes in videos\, allowing color changes from blood flow to be vis
 ualized. Modifications to this algorithm allow small motions to be amplifi
 ed in a video. I'll describe the algorithms\, and show color-magnified vid
 eos of adults and babies\, and motion-magnified videos of throats\, pipes\
 , cars\, smoke\, and pregnant bellies. These algorithms are being used in 
 biological\, civil\, and mechanical engineering applications. Having this 
 tool led us to explore other vision problems involving tiny motions. I'll 
 describe recent work in analyzing fluid flow and depth by exploiting small
  motions in video or stereo video sequences caused by refraction of turbul
 ent air flow (joint work with the authors below and Tianfan Xue\, Anat Lev
 in\, and Hossein Mobahi). We have also developed a "visual microphone" to 
 record sounds by watching objects\, like a bag of chips\, vibrate (joint w
 ith the authors below and Abe Davis and Gautam Mysore).
LOCATION:Raiffeisen Lecture Hall\, Central Building\, ISTA
ORGANIZER:aeller@ist.ac.at
SUMMARY:Bill Freeman: The Institute Colloquium: The motion microscope and t
 he world of tiny motions
URL:https://talks-calendar.ista.ac.at/events/535
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