Near-Instant Capture of High-Resolution Facial Geometry and Reflectance

We present a near‐instant method for acquiring facial geometry and reflectance using a set of commodity DSLR cameras and flashes. Our setup consists of twenty‐four cameras and six flashes which are fired in rapid succession with subsets of the cameras. Each camera records only a single photograph an...

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Vydáno v:	Computer graphics forum Ročník 35; číslo 2; s. 353 - 363
Hlavní autoři:	Fyffe, G., Graham, P., Tunwattanapong, B., Ghosh, A., Debevec, P.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Oxford Blackwell Publishing Ltd 01.05.2016
Témata:	Analysis and texture Cameras Categories and Subject Descriptors (according to ACM CCS) Color Commodities Face Facial Geometry Human I.3.3 [Computer Graphics]: Picture/Image Generation-Digitizing and scanning I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism-Color I.3.7 [Computer Graphics]: Three‐Dimensional Graphics and Realism—Color, shading, shadowing, and texture Image processing systems Photography Photometry Reflectance Reflectivity shading shadowing Studies Three dimensional imaging
ISSN:	0167-7055, 1467-8659
On-line přístup:	Získat plný text
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Popis
Shrnutí:	We present a near‐instant method for acquiring facial geometry and reflectance using a set of commodity DSLR cameras and flashes. Our setup consists of twenty‐four cameras and six flashes which are fired in rapid succession with subsets of the cameras. Each camera records only a single photograph and the total capture time is less than the 67ms blink reflex. The cameras and flashes are specially arranged to produce an even distribution of specular highlights on the face. We employ this set of acquired images to estimate diffuse color, specular intensity, specular exponent, and surface orientation at each point on the face. We further refine the facial base geometry obtained from multi‐view stereo using estimated diffuse and specular photometric information. This allows final submillimeter surface mesostructure detail to be obtained via shape‐from‐specularity. The final system uses commodity components and produces models suitable for authoring high‐quality digital human characters.
Bibliografie:	ArticleID:CGF12837 istex:C625A508D6C7277CB4536C7F36E0CB16BC294F80 Supporting Information ark:/67375/WNG-BCF86RJ8-R SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14 ObjectType-Article-1 ObjectType-Feature-2 content type line 23
ISSN:	0167-7055 1467-8659
DOI:	10.1111/cgf.12837