{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,5]],"date-time":"2022-04-05T12:01:09Z","timestamp":1649160069476},"reference-count":7,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/2.zoppoz.workers.dev:443\/http\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"name":"Opening Project of Shanghai Key Laboratory of Digital Media Processing and Transmission","award":["2011KF02"],"award-info":[{"award-number":["2011KF02"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Electrical and Computer Engineering"],"published-print":{"date-parts":[[2014]]},"abstract":"<jats:p>The topology inference is the study of spatial and temporal relationships among cameras within a video surveillance network. We propose a novel approach to understand activities based on the visual coverage of a video surveillance network. In our approach, an optimal camera placement scheme is firstly presented by using a binary integer programming algorithm in order to maximize the surveillance coverage. Then, each camera view is decomposed into regions based on the Histograms of Color Optical Flow (HCOF), according to the spatial-temporal distribution of activity patterns observed in a training set of video sequences. We conduct experiments by using hours of video sequences captured at an office building with seven camera views, all of which are sparse scenes with complex activities. The results of real scene experiment show that the features of histograms of color optic flow offer important contextual information for spatial and temporal topology inference of a camera network.<\/jats:p>","DOI":"10.1155\/2014\/645145","type":"journal-article","created":{"date-parts":[[2014,2,26]],"date-time":"2014-02-26T21:05:59Z","timestamp":1393448759000},"page":"1-11","source":"Crossref","is-referenced-by-count":1,"title":["Activity-Based Scene Decomposition for Topology Inference of Video Surveillance Network"],"prefix":"10.1155","volume":"2014","author":[{"given":"Hongguang","family":"Zhang","sequence":"first","affiliation":[{"name":"Shanghai Advanced Research Institute, Chinese Academy of Sciences, China"},{"name":"Shanghai Key Laboratory of Digital Media Processing and Transmission, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianzhu","family":"Cui","sequence":"additional","affiliation":[{"name":"Shanghai Advanced Research Institute, Chinese Academy of Sciences, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peng","family":"Wang","sequence":"additional","affiliation":[{"name":"Shanghai Advanced Research Institute, Chinese Academy of Sciences, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shibao","family":"Zheng","sequence":"additional","affiliation":[{"name":"Shanghai Key Laboratory of Digital Media Processing and Transmission, China"},{"name":"Shanghai Jiao Tong University, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"98","reference":[{"key":"2","doi-asserted-by":"publisher","DOI":"10.1109\/34.868678"},{"key":"3","first-page":"973","volume-title":"Art gallery and illumination problems","year":"2000"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1109\/TPAMI.2008.241"},{"issue":"1\u20133","key":"13","first-page":"185","volume":"17","year":"1981","journal-title":"Artificial Intelligence"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1007\/11744047_33"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.1016\/j.patcog.2005.01.025"},{"key":"19","first-page":"1601","year":"2004","journal-title":"Advances in Neural Information Processing Systems"}],"container-title":["Journal of Electrical and Computer Engineering"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/2.zoppoz.workers.dev:443\/http\/downloads.hindawi.com\/journals\/jece\/2014\/645145.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/2.zoppoz.workers.dev:443\/http\/downloads.hindawi.com\/journals\/jece\/2014\/645145.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/2.zoppoz.workers.dev:443\/http\/downloads.hindawi.com\/journals\/jece\/2014\/645145.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2016,7,29]],"date-time":"2016-07-29T04:03:11Z","timestamp":1469764991000},"score":1,"resource":{"primary":{"URL":"https:\/\/2.zoppoz.workers.dev:443\/http\/www.hindawi.com\/journals\/jece\/2014\/645145\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014]]},"references-count":7,"alternative-id":["645145","645145"],"URL":"https:\/\/2.zoppoz.workers.dev:443\/https\/doi.org\/10.1155\/2014\/645145","relation":{},"ISSN":["2090-0147","2090-0155"],"issn-type":[{"value":"2090-0147","type":"print"},{"value":"2090-0155","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014]]}}}