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METHOD FOR ESTIMATING CONNECTION RELATION AMONG WIDE-AREA DISTRIBUTED CAMERA AND PROGRAM FOR ESTIMATING CONNECTION RELATION

外国特許コード F070001664
整理番号 F070001664
掲載日 2007年9月14日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2006JP317067
国際公開番号 WO 2007/026744
国際出願日 平成18年8月30日(2006.8.30)
国際公開日 平成19年3月8日(2007.3.8)
優先権データ
  • 特願2005-249549 (2005.8.30) JP
発明の名称 (英語) METHOD FOR ESTIMATING CONNECTION RELATION AMONG WIDE-AREA DISTRIBUTED CAMERA AND PROGRAM FOR ESTIMATING CONNECTION RELATION
発明の概要(英語) An estimating method and program for estimating the connection relation among distributed cameras to use the estimated relation for monitoring and tracking many object in a wide area. The feature of the invention is not to need any object association among cameras by recognition of a camera image. Each camera independently detects and tracks objects entering/exiting an observation image, and the image coordinates and times of the moments when each object is detected first and last in the image are acquired. All the acquired data observed by each camera is tentatively associated with all the acquired data observed by all the cameras before the detection of all the acquired data observed by the each camera, and the associated items of the data associated for each elapsed time are counted. By using the fact that the elapsed time of correctly associated data with the movement of the same object has a significant peak in the histogram showing the relation between the elapsed time and the number of observations, the connection relation among the fields of view of cameras (presence/absence of overlap between fields of view, image coordinates at which entrance/exit occurs, elapsed time, and pass probability) is acquired according to be peak detection result.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • National University Corporation Nara Institute Of Science And Technology
  • 発明者(英語)
  • Ukita, Norimichi
国際特許分類(IPC)
指定国 AE AG AL AM AT AU AZ BA BB BE BF BG BJ BR BW BY BZ CA CF CG CH CI CM CN CO CR CU CY CZ DE DK DM DZ EC EE EG ES FI FR GA GB GD GE GH GM GN GQ GR GW HN HR HU ID IE IL IN IS IT JP KE KG KM KN KP KR KZ LA LC LK LR LS LT LU LV LY MA MC MD MG MK ML MN MR MW MX MY MZ NA NE NG NI NL NO NZ OM PG PH PL PT RO RS RU SC SD SE SG SI SK SL SM SN SV SY SZ TD TG TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
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