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dc.contributor.authorXiao, Lei
dc.date.accessioned2012-08-27T21:59:43Z
dc.date.available2012-08-27T21:59:43Z
dc.date.issued2012-08-27
dc.date.submittedJuly 2012
dc.identifier.urihttp://hdl.handle.net/1928/21014
dc.description.abstractMonte Carlo (MC) rendering can produce photorealistic global illumination but results in noise at low sample rates. One way to improve the image quality is to apply noise reduction filters on the samples output by the MC rendering system. The challenge of filtering methods is to preserve the scene and shadow details when removing the MC noise. In this paper, we propose a new filtering algorithm for global illumination in Lambertian scenes. We reconstruct the direct and indirect irradiance with separate edge-aware filters and generate final images with deferred shading. To preserve the shadow edges, we introduce a new feature called distance ratio into our filter. The distance ratio provides a simple and effective way to detect the shadowed regions in image space. We show that our algorithm approximates the MC integral better than previous methods, especially when the scenes are very noisy due to large area light sources or environment maps.en_US
dc.language.isoen_USen_US
dc.subjectMonte Carloen_US
dc.subjectGlobal Illuminationen_US
dc.subjectIrradianceen_US
dc.subjectCross Bilateral Filteren_US
dc.subjectDistance Ratioen_US
dc.subject.lcshRendering (Computer graphics)
dc.subject.lcshThree-dimensional imaging.
dc.subject.lcshShades and shadows.
dc.subject.lcshDigital filters (Mathematics)
dc.titleEdge-aware filters for separable irradiance in global illumination renderingen_US
dc.typeThesisen_US
dc.description.degreeComputer Engineeringen_US
dc.description.levelMastersen_US
dc.description.departmentUniversity of New Mexico. Dept. of Electrical and Computer Engineeringen_US
dc.description.advisorSen, Pradeep
dc.description.committee-memberSen, Pradeep
dc.description.committee-memberKniss, Joe
dc.description.committee-memberPattichis, Marios


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