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Most of the existing action recognition methods are supposed to have the same camera view during both training and testing. And thus performances of these single-view approaches may be severely influenced by the camera movement and variation of viewpoints. In this paper, we address the above problem by utilizing videos simultaneously recorded from multiple views. To this end, we propose a learning framework based on multitask random forest to exploit a discriminative mid-level representation for videos from multiple cameras. In the first step, subvolumes of continuous human-centered figures are extracted from original videos. In the next step, spatiotemporal cuboids sampled from these subvolumes are characterized by multiple low-level descriptors. Then a set of multitask random forests are built upon multiview cuboids sampled at adjacent positions and construct an integrated mid-level representation for multiview subvolumes of one action. Finally, a random forest classifier is employed to predict the action category in terms of the learned representation. Experiments conducted on the multiview IXMAS action dataset illustrate that the proposed method can effectively recognize human actions depicted in multiview videos.<\/jats:p>","DOI":"10.1155\/2018\/3508350","type":"journal-article","created":{"date-parts":[[2018,3,20]],"date-time":"2018-03-20T19:31:12Z","timestamp":1521574272000},"page":"1-10","source":"Crossref","is-referenced-by-count":4,"title":["Learning a Mid-Level Representation for Multiview Action Recognition"],"prefix":"10.1155","volume":"2018","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4279-4841","authenticated-orcid":true,"given":"Cuiwei","family":"Liu","sequence":"first","affiliation":[{"name":"School of Computer Science, Shenyang Aerospace University, Shenyang City, Liaoning Province 110136, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhaokui","family":"Li","sequence":"additional","affiliation":[{"name":"School of Computer Science, Shenyang Aerospace University, Shenyang City, Liaoning Province 110136, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7028-3649","authenticated-orcid":true,"given":"Xiangbin","family":"Shi","sequence":"additional","affiliation":[{"name":"School of Computer Science, Shenyang Aerospace University, Shenyang City, Liaoning Province 110136, China"},{"name":"School of Information, Liaoning University, Shenyang City, Liaoning Province 110136, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9079-7169","authenticated-orcid":true,"given":"Chong","family":"Du","sequence":"additional","affiliation":[{"name":"Shenyang Aircraft Design and Research Institute, Tawan Street 40, Shenyang City, Liaoning Province 110135, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1007\/s11263-005-1838-7"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1007\/s11263-016-0897-2"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1016\/j.cviu.2006.10.016"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1016\/j.imavis.2009.11.014"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1016\/j.cviu.2010.10.002"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.3389\/frobt.2015.00028"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1007\/s11042-015-2536-2"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1016\/j.imavis.2014.01.006"},{"key":"12","doi-asserted-by":"publisher","DOI":"10.1016\/j.cviu.2006.07.013"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.1049\/iet-cvi.2015.0233"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.1016\/j.patcog.2016.05.010"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.1016\/j.patrec.2013.01.021"},{"key":"19","doi-asserted-by":"publisher","DOI":"10.1007\/s00530-016-0505-x"},{"key":"20","doi-asserted-by":"publisher","DOI":"10.3390\/app6100309"},{"key":"21","doi-asserted-by":"publisher","DOI":"10.1049\/iet-cvi.2015.0416"},{"key":"22","doi-asserted-by":"publisher","DOI":"10.1007\/s11042-017-4384-8"},{"key":"23","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvcir.2017.01.019"},{"key":"24","doi-asserted-by":"publisher","DOI":"10.1049\/iet-cvi.2015.0408"},{"key":"25","doi-asserted-by":"publisher","DOI":"10.1007\/s11432-013-4938-y"},{"key":"31","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-540-88688-4_22"},{"key":"32","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-15558-1_46"},{"key":"34","doi-asserted-by":"publisher","DOI":"10.1016\/j.procs.2015.08.540"},{"key":"35","doi-asserted-by":"publisher","DOI":"10.1109\/MMUL.2016.69"},{"key":"30","doi-asserted-by":"publisher","DOI":"10.1023\/A:1010933404324"}],"container-title":["Advances in Multimedia"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/am\/2018\/3508350.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/am\/2018\/3508350.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/am\/2018\/3508350.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2018,3,20]],"date-time":"2018-03-20T19:31:21Z","timestamp":1521574281000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/am\/2018\/3508350\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018]]},"references-count":24,"alternative-id":["3508350","3508350"],"URL":"https:\/\/doi.org\/10.1155\/2018\/3508350","relation":{},"ISSN":["1687-5680","1687-5699"],"issn-type":[{"type":"print","value":"1687-5680"},{"type":"electronic","value":"1687-5699"}],"subject":[],"published":{"date-parts":[[2018]]}}}