highway_art489.jpgspatial_envelope_256x256_static_8outdoorcategoriesAude Oliva and Antonio Torralba, IJCV 2001, vol 42(3).LabelMe Webtoolroad0028-Feb-2006 00:59:47anonymous9512874150020212552562552542111511621141381051270sky0028-Feb-2006 00:59:47anonymous01163411733753675371172551192560001field0029-Oct-2006 07:11:372anonymous256123255212156164105127106123field0029-Oct-2006 07:11:373anonymous01259512590133731510202pole0029-Oct-2006 16:34:564anonymous341563275367537154