lecture15 - Natural Scene Classification in Natural Scene...

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Unformatted text preview: Natural Scene Classification in Natural Scene Classification in Humans Humans and Computers and Computers Fei-Fei Li (publish under L. Fei-Fei ) A picture is worth a thousand words.--- Confucius or Printers’ Ink Ad (1921) texture colorful Large rectangle green texture Elongated shapes bright Shadow shade crowd crowd Big banner Sport field More crowd players Day time game stadium S. Lumet, 1965 Potter, Biederman, etc. 1970s Biederman, Science, 1973 Biederman, Science, 1973 Thorpe, et al. Nature, 1996 Thorpe, et al. Nature, 1996 150 ms !! 150 ms !! 150 ms !! 150 ms !! A picture tells us many stories Fei-Fei et al. JoV 2007 A picture tells us many stories time Fei-Fei et al. JoV 2007 I think I saw two people on a field. (Subject: RW) Outdoor scene. There were some kind of animals, maybe dogs or horses, in the middle of the picture. It looked like they were running in the middle of a grassy field. (Subject: IV) two people, whose profile was toward me. looked like they were on a field of some sort and engaged in some sort of sport (their attire suggested soccer, but it looked like there was too much contact for that). (Subject: AI) Some kind of game or fight. Two groups of two men? The foregound pair looked like one was getting a fist in the face. Outdoors seemed like because i have an impression of grass and maybe lines on the grass? That would be why I think perhaps a game, rough game though, more like rugby than football because they pairs weren't in pads and helmets, though I did get the impression of similar clothing. maybe some trees? in the background. (Subject: SM) PT = 500ms Fei-Fei et al. JoV 2007 PT = 27ms PT = 40ms PT = 67ms This was a picture with some dark sploches in it. Yeah. . .that's about it. (Subject: KM) PT = 107ms Rensink, O’regan, Simon, etc. Rensink, O’regan, Simon, etc. Jain, Zhang et al. (1998) • • global cues: colors, textures, etc. global cues: colors, textures, etc....
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This note was uploaded on 10/26/2010 for the course EECS 442 taught by Professor Savarese during the Fall '09 term at University of Michigan.

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lecture15 - Natural Scene Classification in Natural Scene...

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