{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,9,23]],"date-time":"2024-09-23T03:42:06Z","timestamp":1727062926260},"reference-count":22,"publisher":"World Scientific Pub Co Pte Lt","issue":"04","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Image Grap."],"published-print":{"date-parts":[[2004,10]]},"abstract":"<jats:p> The acquisition of human motion data is of major importance for creating interactive virtual environments, intelligent user interfaces, and realistic computer animations. Today's performance of off-the-shelf computer hardware enables marker-free non-intrusive optical tracking of the human body. In addition, recent research shows that it is possible to efficiently acquire and render volumetric scene representations in real-time. This paper describes a system to capture human motion without the use of markers or scene-intruding devices. Instead, a 2D feature tracking algorithm and a silhouette-based 3D volumetric scene reconstruction method are applied directly to the image data. A person is recorded by multiple synchronized cameras, and a multi-layer hierarchical kinematic skeleton is fitted to each frame in a two-stage process. The pose of a first model layer at every time step is determined from the tracked 3D locations of hands, head and feet. A more sophisticated second skeleton layer is fitted to the motion data by applying a volume registration technique. We present results with a prototype system showing that the approach is capable of running at interactive frame rates. <\/jats:p>","DOI":"10.1142\/s0219467804001543","type":"journal-article","created":{"date-parts":[[2004,9,6]],"date-time":"2004-09-06T11:50:09Z","timestamp":1094471409000},"page":"563-583","source":"Crossref","is-referenced-by-count":11,"title":["COMBINING 2D FEATURE TRACKING AND VOLUME RECONSTRUCTION FOR ONLINE VIDEO-BASED HUMAN MOTION CAPTURE"],"prefix":"10.1142","volume":"04","author":[{"given":"CHRISTIAN","family":"THEOBALT","sequence":"first","affiliation":[{"name":"Max-Planck-Instituf f\u00fcr Informatik, Stuhlsatzenhausweg 85, 66123 Saarbr\u00fccken, Germany"}]},{"given":"MARCUS A.","family":"MAGNOR","sequence":"additional","affiliation":[{"name":"Max-Planck-Instituf f\u00fcr Informatik, Stuhlsatzenhausweg 85, 66123 Saarbr\u00fccken, Germany"}]},{"given":"PASCAL","family":"SCH\u00dcLER","sequence":"additional","affiliation":[{"name":"Max-Planck-Instituf f\u00fcr Informatik, Stuhlsatzenhausweg 85, 66123 Saarbr\u00fccken, Germany"}]},{"given":"HANS-PETER","family":"SEIDEL","sequence":"additional","affiliation":[{"name":"Max-Planck-Instituf f\u00fcr Informatik, Stuhlsatzenhausweg 85, 66123 Saarbr\u00fccken, Germany"}]}],"member":"219","published-online":{"date-parts":[[2011,11,20]]},"reference":[{"key":"rf2","doi-asserted-by":"publisher","DOI":"10.3758\/BF03212378"},{"key":"rf3","volume-title":"Understanding Motion Capture for Computer Animation and Video Games","author":"Menache A.","year":"1995"},{"key":"rf5","doi-asserted-by":"publisher","DOI":"10.1006\/cviu.1998.0716"},{"key":"rf6","doi-asserted-by":"publisher","DOI":"10.1109\/34.598226"},{"key":"rf7","doi-asserted-by":"publisher","DOI":"10.1109\/34.735811"},{"key":"rf9","volume-title":"Berichte Aus der Kommunikations- Und Informationstechnik","volume":"20","author":"Eisert P.","year":"2001"},{"key":"rf16","first-page":"51","volume":"4","author":"Gleicher M.","journal-title":"Computer Graphics"},{"key":"rf17","doi-asserted-by":"publisher","DOI":"10.1109\/CA.2000.889046"},{"key":"rf19","doi-asserted-by":"publisher","DOI":"10.1016\/0262-8856(83)90003-3"},{"key":"rf23","doi-asserted-by":"publisher","DOI":"10.1006\/jvci.1994.1001"},{"key":"rf25","doi-asserted-by":"publisher","DOI":"10.1006\/cviu.2000.0891"},{"key":"rf27","doi-asserted-by":"publisher","DOI":"10.1109\/34.598236"},{"key":"rf29","doi-asserted-by":"publisher","DOI":"10.1109\/34.273735"},{"key":"rf30","doi-asserted-by":"publisher","DOI":"10.1006\/cviu.1993.1030"},{"key":"rf31","doi-asserted-by":"publisher","DOI":"10.1016\/0734-189X(87)90053-3"},{"key":"rf32","doi-asserted-by":"publisher","DOI":"10.1109\/76.825726"},{"key":"rf36","doi-asserted-by":"publisher","DOI":"10.1109\/ICCV.1999.791235"},{"key":"rf37","first-page":"714","volume":"2","author":"Cheung K. 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