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Appl."],"published-print":{"date-parts":[[2015,1,7]]},"abstract":"<jats:p>Large-area, high-resolution visual monitoring systems are indispensable in surveillance applications. To construct such systems, high-quality image capture and display devices are required. Whereas high-quality displays have rapidly developed, as exemplified by the announcement of the 85-inch 4K ultrahigh-definition TV by Samsung at the 2013 Consumer Electronics Show (CES), high-resolution surveillance cameras have progressed slowly and remain not widely used compared with displays. In this study, we designed an innovative framework, using a dual-camera system comprising a wide-angle fixed camera and a high-resolution pan-tilt-zoom (PTZ) camera to construct a large-area, multilayered, and high-resolution visual monitoring system that features multiresolution monitoring of moving objects. First, we developed a novel calibration approach to estimate the relationship between the two cameras and calibrate the PTZ camera. The PTZ camera was calibrated based on the consistent property of distinct pan-tilt angle at various zooming factors, accelerating the calibration process without affecting accuracy; this calibration process has not been reported previously. After calibrating the dual-camera system, we used the PTZ camera and synthesized a large-area and high-resolution background image. When foreground targets were detected in the images captured by the wide-angle camera, the PTZ camera was controlled to continuously track the user-selected target. Last, we integrated preconstructed high-resolution background and low-resolution foreground images captured using the wide-angle camera and the high-resolution foreground image captured using the PTZ camera to generate a large-area, multilayered, and high-resolution view of the scene.<\/jats:p>","DOI":"10.1145\/2645862","type":"journal-article","created":{"date-parts":[[2015,1,12]],"date-time":"2015-01-12T20:02:10Z","timestamp":1421092930000},"page":"1-23","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["Large-Area, Multilayered, and High-Resolution Visual Monitoring Using a Dual-Camera System"],"prefix":"10.1145","volume":"11","author":[{"given":"Chih-Wei","family":"Lin","sequence":"first","affiliation":[{"name":"National Taiwan University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kuan-Wen","family":"Chen","sequence":"additional","affiliation":[{"name":"National Taiwan University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shen-Chi","family":"Chen","sequence":"additional","affiliation":[{"name":"National Taiwan University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cheng-Wu","family":"Chen","sequence":"additional","affiliation":[{"name":"National Kaohsiung Marine University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yi-Ping","family":"Hung","sequence":"additional","affiliation":[{"name":"National Taiwan University"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2015,1,7]]},"reference":[{"key":"e_1_2_1_1_1","volume-title":"Proceedings of the 15th IEEE International Conference on Image Processing (ICIP). 1712--1715","author":"Alahi A.","unstructured":"A. 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