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Sen. Netw."],"published-print":{"date-parts":[[2010,6]]},"abstract":"<jats:p>\n            We present a scalable end-to-end system for vision-based monitoring of natural environments, and illustrate its use for the analysis of avian nesting cycles. Our system enables automated analysis of thousands of images, where manual processing would be infeasible. We automate the analysis of raw imaging data using statistics that are tailored to the task of interest. These \u201cfeatures\u201d are a representation to be fed to classifiers that exploit spatial and temporal consistencies. Our testbed can detect the presence or absence of a bird with an accuracy of 82%, count eggs with an accuracy of 84%, and detect the inception of the nesting stage within a day. Our results demonstrate the challenges and potential benefits of using imagers as biological sensors. An exploration of system performance under varying image resolution and frame rate suggest that an\n            <jats:italic>in situ<\/jats:italic>\n            adaptive vision system is technically feasible.\n          <\/jats:p>","DOI":"10.1145\/1754414.1754415","type":"journal-article","created":{"date-parts":[[2010,6,22]],"date-time":"2010-06-22T12:20:45Z","timestamp":1277209245000},"page":"1-31","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":34,"title":["Heartbeat of a nest"],"prefix":"10.1145","volume":"6","author":[{"given":"Teresa","family":"Ko","sequence":"first","affiliation":[{"name":"University of California, Los Angeles"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shaun","family":"Ahmadian","sequence":"additional","affiliation":[{"name":"University of California, Los Angeles"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John","family":"Hicks","sequence":"additional","affiliation":[{"name":"University of California, Los Angeles"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammad","family":"Rahimi","sequence":"additional","affiliation":[{"name":"University of California, Los Angeles"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Deborah","family":"Estrin","sequence":"additional","affiliation":[{"name":"University of California, Los Angeles"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stefano","family":"Soatto","sequence":"additional","affiliation":[{"name":"University of California, Los Angeles"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sharon","family":"Coe","sequence":"additional","affiliation":[{"name":"USDA Forest Service"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael P.","family":"Hamilton","sequence":"additional","affiliation":[{"name":"University of California, Berkeley"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2010,6,24]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"crossref","unstructured":"Brown C. 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Irisnet: an architecture for internet-scale sensing services. In Proceedings of the 29th International Conference on Very Large Data Bases (VLDB'03), 1137--1140."},{"volume-title":"Proceedings of the 4th World Conference on Structural Control and Monitoring (WCSCM).","author":"Paek J.","key":"e_1_2_1_11_1","unstructured":"Paek , J. , Jang , O. G. K.-Y. , Nishimura , D. , Govindan , R. , Caffrey , J. , Wahbeh , M. , and Masri , S . 2006. A programmable wireless sensing system for structural monitoring . In Proceedings of the 4th World Conference on Structural Control and Monitoring (WCSCM). Paek, J., Jang, O. G. K.-Y., Nishimura, D., Govindan, R., Caffrey, J., Wahbeh, M., and Masri, S. 2006. A programmable wireless sensing system for structural monitoring. 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