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Graph."],"published-print":{"date-parts":[[2010,7,26]]},"abstract":"<jats:p>\n            We present a novel optical setup and processing pipeline for measuring the 3D geometry and spatially-varying surface reflectance of physical objects. Central to our design is a digital camera and a high frequency spatially-modulated light source aligned to share a common focal point and optical axis. Pairs of such devices allow capturing a sequence of images from which precise measurements of geometry\n            <jats:italic>and<\/jats:italic>\n            reflectance can be recovered. Our approach is enabled by two technical contributions: a new active multiview stereo algorithm and an analysis of light descattering that has important implications for image-based reflectometry. We show that the geometry measured by our scanner is accurate to within 50 microns at a resolution of roughly 200 microns and that the reflectance agrees with reference data to within 5.5%. Additionally, we present an image relighting application and show renderings that agree very well with reference images at light and view positions far from those that were initially measured.\n          <\/jats:p>","DOI":"10.1145\/1778765.1778836","type":"journal-article","created":{"date-parts":[[2010,7,15]],"date-time":"2010-07-15T12:48:46Z","timestamp":1279198126000},"page":"1-12","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":84,"title":["A coaxial optical scanner for synchronous acquisition of 3D geometry and surface reflectance"],"prefix":"10.1145","volume":"29","author":[{"given":"Michael","family":"Holroyd","sequence":"first","affiliation":[{"name":"Unversity of Virginia"}]},{"given":"Jason","family":"Lawrence","sequence":"additional","affiliation":[{"name":"University of Virginia"}]},{"given":"Todd","family":"Zickler","sequence":"additional","affiliation":[{"name":"Harvard University"}]}],"member":"320","published-online":{"date-parts":[[2010,7,26]]},"reference":[{"key":"e_1_2_2_1_1","doi-asserted-by":"crossref","unstructured":"Alldrin N. 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